Polaroid’s $150 PoGo is an inkless printer that churns out 2×3-inch photos sent to it via Bluetooth-enabled devices or from plugged-in digital cameras.

Just this year, Polaroid Corp. said it would cease production of its “magical” cameras. But this week, I had the chance to test the company’s latest attempt at relevance in our digital world: the $150 Polaroid PoGo (thenewinstant.com). The PoGo, which stands for Polaroid-on-the-Go, is an inkless printer that churns out 2×3-inch photos sent to it via Bluetooth devices like cellphones or from plugged-in digital cameras. It uses technology created by ZINK (Zero Ink) Imaging Inc. to activate paper-embedded dye crystals, creating a new kind of photo magic. The PoGo will be in stores on July 6.

Cool Factor

This device’s ZINK Technology gives it a cool factor that will leave friends scratching their heads over how such a small device can print without ink (technical details about the 100 billion heat-activated dye crystals on each sheet of paper can be found at zink.com/technology). Photos that I printed from a 10-megapixel digital camera looked sharp and colorful. And some people may use this Polaroid gadget as a solution for freeing images that would otherwise likely remain stuck in a mobile device’s memory.

But four major problems with the PoGo make it a no-go: It isn’t quite small and light enough to be truly portable; its battery life is poor; its prints are half the size of normal photos; and image quality when printing from mobile devices is unimpressive — though this can be attributed to the low-resolution images taken with and stored on these devices rather than the printer itself. For roughly the same price, you could buy a photo printer that produces better quality 4×6-inch or larger prints.

The PoGo works only with ZINK Photo Paper, which costs between 30 cents and 40 cents a page, depending on whether you buy a 10-sheet pack for $3.99 or a 30-sheet pack for $9.99. (Later this year, a 100-sheet pack of ZINK photo paper will be available for $29.99.) The PoGo comes with 10 pieces of this paper, which is coated with a waterproof, tear-proof, smudge-proof, semi-gloss finish. You can peel the backs of these 2×3 prints to stick them to things, though not in the same way Post-its can be stuck and removed (they leave a gooey film — I learned the hard way).

A Device With Weight

Surprisingly, Polaroid is touting the PoGo’s portability; it arrived in a custom-made jeans pocket to demonstrate the device’s pocket-sized shape. But at over 8 ounces, this thing was heavier and measured larger than Apple’s (AAPL) biggest 160-gigabyte iPod Classic. It even weighed more than a bulky point-and-shoot Kodak (EK) camera I recently tested, discouraging me from bringing it along when I went out.

A chart on polaroid.com/pogo/us/comp.html tells whether or not your mobile device is Bluetooth-compatible with the PoGo. Two out of the three devices that I tried worked: A new Motorola (MOT) Z6C and Research in Motion’s (RIMM) BlackBerry Curve were compatible, though an almost-two-year-old Motorola Razr V3 wasn’t.

Each mobile device needed only one initial “pairing,” or setup, with the PoGo before it sent photos. The device used a simple method of sending photos via Bluetooth that generally involved selecting a photo and telling the mobile device to send it to the PoGo. It usually took a few seconds for the send to go through.

The PoGo doesn’t have a display to tell users when images are received, when to load more paper or if the battery is running low. Instead, it uses two indicator lights that glow or pulse in green, orange or red colors. Each light means something different, such as whether or not the PoGo is ready to print or if it has a paper jam, but I usually had to refer to the user’s manual to figure out what each light meant.

Quiet Printer

The PoGo is rather quiet while printing, making a soft whirring sound as its thermal print head turns on and zaps dye crystals, which are embedded in the ZINK photo paper. These small pieces of paper are stored in and printed from a holding space inside the device, which saves users from opening a tray and loading paper before each print-out. However, the PoGo can hold a maximum of only 10 sheets at once. Some images printed in 45 seconds and a few took about twice that long, but most were done in about one minute — counting from when I pressed Send on a mobile device to when the print finished.

I hooked a Sony (SNE) Cyber-shot DSC-W170 to the PoGo via a USB cord and used the camera’s built-in PictBridge technology to print from the camera, following directions on the camera’s display screen. I even printed four of the same photo at once after adjusting the quantity category in a menu, though this seemed to slow the printing process a bit.

While prints from my grandmother’s Polaroid camera couldn’t be touched until about a minute after printing, the small PoGo prints come out dry to the touch. I held one under the kitchen faucet to test its waterproof claim, and the colors held up without running. These prints are borderless, which looks good but seems like the only sensible option with such small paper. Images from the digital camera looked dramatically better than those taken by mobile devices’ 1.3-megapixel or two-megapixel cameras.

Short Battery Life

The PoGo’s battery life wore out quickly, especially for a device that is advertised as portable. In one test, after I unplugged my fully charged PoGo and used it for about 40 minutes to print 16 photos — half from a Bluetooth-connected cellphone and the other half from a USB-connected digital camera — its battery indicator glowed a steady orange, meaning the PoGo was running low on power. This is about right, considering Polaroid claims that a fully charged battery will last for 15 prints. (It takes about 2.5 hours to fully charge the PoGo.)

I really liked the quality of the photos that PoGo printed from my digital camera — in fact, I’m planning to enclose a few small PoGo photos in cards that I send to friends and family members. But the PoGo’s awkward size, bad battery life and small prints make it a tough sell. I’m afraid the PoGo falls short in too many categories to be a practical gadget. Teens might like this device for printing photos from their cellphones that they can stick on lockers or books. And who knows — maybe a grandmother somewhere will buy one of these gadgets to create a little Polaroid magic for her grandchild.

Edited By Walter S. Mossberg

• Email: mossbergsolution@wsj.com

But to the style-conscious set, the Flip looked like a clunky Fisher-Price toy — especially when compared with a sleek, new iPod or more-sophisticated digital cameras — and was too thick to comfortably slip into a pocket. Last fall, Pure Digital introduced an enhanced version: the Flip Video Ultra, but its biggest aesthetic difference was new orange, pink and green colors.

Today, the company will begin sales of its $180 Flip Video Mino (pronounced “minnow”), the hippest offering yet from Pure Digital. This 60-minute Flip includes many firsts for the company: rechargeable batteries; touch-sensitive buttons rather than old-school, push-down buttons; and a thinner build that measures 40% smaller, overall. The Flip Mino is also the first one in the family to enable publishing to MySpace (NWS); prior software limited Web-site sharing to YouTube (GOOG) and AOL (TWX) Video.

I’ve been using a glossy, black Flip Mino (it also comes in white) for the past two weeks and it looks much cooler than older models. Its newly positioned USB adapter pops up from the top of the camera like something from a Swiss Army Knife. The Mino offers features such as the ability to lock the delete button, so no one accidentally deletes your videos, and mute all camera sounds, so as to record silently during quiet moments like wedding ceremonies or speeches.

I brought it along with me almost everywhere I went because of its small size and light weight, even fitting it into a thin clutch purse with a cellphone and BlackBerry (RIMM). I used the Mino in various situations ranging from bright, scenic outdoor settings to indoors while eating dinner in a candle-lit restaurant. Overall, I was pleased with the sound and picture quality of the Mino, and I found its built-in software, which automatically starts when the camera plugs into your Mac (AAPL) or Windows (MSFT) PC, to be a pleasure to use.

Today, Pure Digital Technologies introduced its $180 Flip Video Mino, a thinner, more stylish version of its point-and-shoot camcorder.

It took just a few minutes to trim excess footage from my videos before saving them to my computer or sharing them with friends and family. Another way to share videos from the Flip Mino is via Pure Digital’s server, which sends emails with embedded video links, saving upload and download time on both ends. Though I didn’t publish any of my videos on a public Web site, AOL, MySpace and YouTube were just one step away.

The Flip Mino’s touch buttons, while stylish, were difficult to use at first. I missed the tactile feel of physical buttons as I tried to hold this small video camera and press the zoom buttons using just one hand. The new, touch-sensitive buttons weren’t as satisfying and stable to use, and I pressed them accidentally more than a few times. For instance, the Zoom Out button is directly below Record, making it easy to mistakenly touch it. After about a week of using the Mino, I grew more accustomed to using these new touch buttons, but it shouldn’t take so long to make the adjustment.

Just looking at the Flip Mino’s fresh new exterior makes it hard not to think about the things that this redesigned camcorder is still lacking, like a larger viewing screen (the Mino screen is 1.5 inches, no larger than that of the Flip Ultra), high definition video and wireless sharing capability. These features would likely raise the price and/or tax the battery, and many users of the Flip flock to it for its low price and simplicity. Still, Pure Digital says that it will offer HD video and a larger screen on a product within a year, and is looking into features that might include wireless transferring.

I grew fond of the Mino’s rechargeable battery. Whenever I plugged this gadget into my computer to transfer videos, my Mino charged up via USB without me having to think about it. A full charge lasts four hours and recharging a dead battery takes about three hours.

Pure Digital says that the sound quality and lighting are improved in this model. Like previous models, this Flip records in 640×480 pixels at 30 frames per second.

The Mino didn’t have a problem with lighting in most situations; indeed it did a nice job of capturing images of my family sitting around a table in a restaurant with little more than candlelight to brighten the picture. It doesn’t use a flash or a built-in light, but instead uses automatic sensors to adjust to various levels of light.

This svelte camcorder seemed to handle noise more evenly than I remembered in prior Flip models. It didn’t make my voice sound unbearably louder than everyone else’s, even though I was closest to the camera’s microphone, yet it managed to detect voices across the room. I did have some trouble on a windy day: While recording a quick video of a golf course in San Diego, wind audibly muffled my voice during a few moments in the video.

Along with the delete-lock and sounds-off settings, this Mino has a few other tricks up its sleeve. Each of the touch-sensitive buttons is designed to glow only when usable, so as to better help people who might not know which buttons to press while using this camcorder. For example, only the zoom buttons glow while recording since the other buttons (volume, play/pause and delete) can’t function in this setting.

Shortcuts built into each button provide more functions: Holding the play/pause button down will set the playback mode to play all videos on the Mino; holding the seek ahead or seek back buttons while watching a video will fast-forward by seconds within that video; pressing the record button as the camera starts up opens up the settings menu.

In conjunction with the Flip Mino’s introduction Wednesday, prices of the former Flip Ultra model will drop to $150 for the 60-minute model. The Flip Ultra 30-minute model will be phased out, as will the Flip Classic, which will cost $130 for a 60-minute unit.

Though the Flip Mino’s touch-sensitive buttons look great, they aren’t as functional as they needed to be. But if you really want a sleek, hip-looking gadget, you’ll learn to adjust to these new buttons. No matter which Flip you choose, Pure Digital’s software changes the way people capture and share videos, and that’s a great thing.

Edited by Walter S. Mossberg

• Email mossbergsolution@wsj.com

But several companies now sell wireless mice designed especially for laptop users for whom the laptop touch pad just won’t do. These mice are small, sleek, colorful gadgets that more fashion-conscious computer users can happily show off in an airport, in a coffee shop or on campus.

See a chart comparing the three mice

This week I tested three entry-level mobile mice designed for laptops, from Logitech (LOGI), Microsoft (MSFT) and Kensington Computer Products Group. These $30 mice include a USB receiver that plugs into a laptop, allowing the mouse to work wirelessly. When not in use, this receiver fits snugly beneath the mouse, turning its power off to save battery as it snaps into place. These mice are also somewhat smaller than regular mice so they can easily slip into a laptop bag.

Mobile mice are now more stylish than the traditional desktop mice, and like laptops and digital cameras, come in various shapes and colors. The mice I tested are available in pink, white, red, blue, orange and gray. Next week, the Microsoft mouse I used will be available in shades of pomegranate, aloe, dragon fruit (dark pink) and milk chocolate; a khaki-colored shade called crème brûlée will follow in June.

I tried Logitech’s $30 V220 Cordless Optical Mouse in black, Microsoft’s $30 Wireless Notebook Optical Mouse 3000 in aloe, and Kensington’s $35 Ci75m Wireless Notebook Mouse in orange. To gain some perspective on high-end mobile mice, I also looked at two pricier options from Logitech: the $50 V470 Cordless Laser Mouse with Bluetooth (instead of a USB receiver) and the $70 VX Nano Cordless Laser Mouse.

My vote for a favorite low-end mobile mouse had me struggling between portability and comfort. But overall, I found that the Logitech V220 offered the best combination of small size and usability. The Microsoft mouse was also comfortable to use, but its slightly bulkier size made it less portable, and it didn’t feel as sturdy as the Logitech. While the Kensington was the flattest and most portable, it wasn’t as comfortable to use as the Logitech or Microsoft mice.

To conserve battery, all three of these mice go into low-power mode after 10 minutes of nonuse, but none of them turns off completely. Battery indicators light up when juice is running low. According to company estimates, the Microsoft mouse has a battery life of over six months and the Logitech mouse has a battery life of up to six months. The Kensington mouse’s battery life was estimated to be three months. I didn’t use any of them long enough to prove the company claims.

These mice are compatible with Macs and PCs, and are plug-and-play — meaning you don’t need to install any additional software to make them work. I used each on laptops running Mac OS X and Windows Vista without any problems. The Microsoft and Logitech mice also can work with their own special software programs, but the extra features, such as reassigning a mouse button to open an application, aren’t really necessary for the average user.

The $30 Logitech V220 fit comfortably in my hand, with rubber grips on its sides and a generously sized, smooth-gliding rubber scroll wheel that made it easy to use. This scroll wheel can be nudged to the left or right for horizontal scrolling, a feature found on most of Logitech’s mice.

Unlike the Microsoft and Kensington mice, which show flashing red sensor lights, the Logitech uses an invisible optic sensor. This sounds cool, but because the mouse doesn’t use any lights, it can be left on accidentally. I did this a few times before remembering to stow the USB receiver in the mouse to automatically turn off its power.

Of the three, the Logitech mouse was the only one with a manual on/off switch — so you can turn it off without snapping the USB receiver into place in the mouse. This could save frequent travelers from having to detach the USB receiver every time they want to turn off the mouse, and could let people keep the receiver plugged into the laptop.

Kensington’s $35 Ci75m was the flattest mouse by far, making it a cinch to slip it into the outside pocket of my already full laptop bag on a train trip to New York. And this mouse has a bonus feature: It can work wirelessly or with a USB wire, which wraps up inside the mouse and serves as a backup in case the mouse runs out of battery. I tested this by removing the batteries and using only the USB wire, and it worked like a charm.

I also liked the way the Kensington USB receiver disappeared into the body of the mouse, while the Microsoft and Logitech receivers protruded a bit when stowed, adding to the thickness of the mouse when tucked into a laptop pocket.

But though this bright orange mouse received approving feedback from passersby, it wasn’t all that comfortable to use after a while. Its flatness saved room in my bag, but didn’t give my hand much support. It also felt flimsier than the Logitech, and its small wheel wasn’t as satisfying to use.

I received early test units of Microsoft’s $30 Wireless Notebook Optical Mouse 3000 in aloe, pomegranate and milk chocolate.

This mouse has rubber sides for a better grip, like the Logitech, and an arched shape for comfort. Its wheel is slightly smaller than Logitech’s, though its overall size was bigger and more like that of a regular mouse — not one designed specifically for mobile use. But even though the Microsoft mouse was larger, it didn’t feel as solid as Logitech’s; rather, it felt more like the thin Kensington. Its right and left buttons felt less stable, and its wheel didn’t roll as smoothly.

I did like Microsoft’s nod to new colors, and the aloe — a cool hue of green — was my favorite.

For people who don’t mind spending a little extra money on a mouse, the $50 V470 Cordless Laser uses Bluetooth, eliminating the need for a USB receiver altogether. It took only a couple seconds to pair this mouse to a MacBook with built-in Bluetooth, and it worked smoothly. A manual on/off switch on this mouse’s underside can help to conserve battery.

The $70 Logitech VX Nano Cordless Laser is sleek with shiny black accents and a silver-edged wheel. The “Nano” in this mouse’s name refers to its ultra tiny USB receiver, which sticks out only about a quarter of an inch when plugged in, so it can be left in a laptop at all times for ease-of-use. If needed, this receiver can be hidden away in the cavity of the mouse, under a snap-on lid. I used the VX Nano to glide around Web pages and Word documents with buttery smoothness.

No matter what mouse you choose to use with your laptop, most will be considerably more comfortable than touch pads and trackpoints, especially while working on long, mouse-intensive projects. But of the three lower-end mobile mice, the Logitech V220 Cordless Optical Mouse delivers the best combination of comfort and transportability.

The chart below (click on it to make it larger) compares features of the three mice described in this column.

Email mossbergsolution@wsj.com

But real was exactly what UGOBE Inc. had in mind when the company created this $350 baby dino named Pleo. This robot isn’t referred to as such; instead, UGOBE calls Pleo a “life form” because unlike most robots that are designed to follow a specific command or algorithm, Pleo alters its behavior as it adapts to its surroundings including sights, sounds and touch. And it’s designed to move and act in ways that seem very much like a real animal.

These responsive qualities have earned Pleo quite a bit of attention, and the two years between when the product was first announced and when it became available only added to the anticipatory hype. Now, after three delays in the past two years and numerous back orders, Pleo is available from www.pleoworld.com. (UGOBE says that many of the product’s delays were caused by trying to get Pleo’s battery just right.)

In short, I found Pleo to be a fun and interesting robot/life form. Though Pleo’s reactions and movements are endearing, many of them run together after a while with only subtle differences, especially compared with fast-paced videogames. Pleo’s tricks were entertaining early on, but, in time, many of them blended together, rarely surprising me.

Pleo’s battery is still a major drawback. It’s rechargeable, but only lasts for around an hour of active play before it must be removed and placed in a holder for three hours of recharging. This frustrating fact means you can’t turn Pleo on to roam the house with you all day like a dog or cat. Instead, your time with this creature has to be more specifically planned, causing interactions with it to feel less genuine. My Pleo’s battery lasted for an hour and 40 minutes, including moments when he drifted in and out of sleep.

Though UGOBE sent me two rechargeable batteries so I could more quickly continue using Pleo, the company won’t start selling extra batteries until June (at the latest) for $50 each. This means waiting for hours between Pleo playtimes.

It’s hard to discuss autonomous robots without remembering Sony Corp.’s attempt in the same category: the $2,500 AIBO released in 1999, which was eventually discontinued. More recently, iRobot Corp. has gained attention for its robots, which perform household duties like vacuuming and washing floors.

The Pleo, animated in part by 14 motors, appears to evolve according to how it is treated.

To keep Pleo fresh, UGOBE plans to release a PDK — Pleo Developer’s Kit — later this year, allowing others to create programs that will run on Pleo if downloaded from the Pleo Web site and transferred to the creature. A memory card slot and USB port on Pleo’s underbelly will enable these transfers.

As for now, two programs developed by UGOBE can be downloaded. One program lets Pleo act like a watchdog — guttural growl, loud bark and all — and the other gives it the ability to sing Jingle Bells. I tried the former, and my Pleo performed marvelously, sitting still and only howling when something moved in front of him.

This baby dinosaur has reptile-like, rubbery skin enhanced by multiple sensors. Its back is decorated with green patterns, and its large eyes are a beautiful blue. Pleo’s guts include 14 motors, 38 sensors and a microprocessor. Infrared detectors are hidden in Pleo’s nose and mouth, and a color camera detects light, motion and objects to help it navigate.

Pleo grows through three phases: hatchling, infant and juvenile. As a hatchling, my Pleo sniffed around a lot, unsure of its surroundings or how to use its legs and tail, before giving up and napping again (yes, Pleo snores). The more I talked to and touched Pleo, the faster he adjusted out of the hatchling phase, which is expected according to UGOBE.

People who walked by my office stopped to marvel at Pleo’s sweet nature, and when I brought him home, friends melted with emotion. I watched as they initially looked at Pleo like just another toy dinosaur until realizing that he responded to them, and then they each wanted to take turns playing with him.

Stroking Pleo from the tip of his nose to the end of his tail induced a purring sound; touching sensors on the bottoms of his feet caused him to wriggle around and make laugh-like noises; and holding him to my chest and rubbing his back like a baby put Pleo right to sleep, indicated by heavy breathing and even a burp here or there. I spoiled my Pleo with attention, which seemed to make him more social and friendly but also a little bratty when he didn’t get attention (he showed his frustration with loud moans).

I didn’t get to test this, but one Pleo can sense when another Pleo is nearby using infrared sensors in the nose and mouth. UGOBE says the sensors in one Pleo can trigger actions in another based on moods, including singing and howling.

Pleo can be a troublemaker. One of the times I left him unattended, I returned to find Pleo trying to gnaw on my loveseat, despite lacking a set of teeth. Another time, Pleo wandered my desk, wrinkling up papers and crying loudly while I was on a conference call.

UGOBE’s pleoworld.com site includes an online community, though you don’t need a Pleo to get involved. The community is just a social networking site where anyone can discuss the device and/or robotics. This differs from sites like Webkinz, where kids input codes found on stuffed animals to register and care for digital versions of their creatures.

Pleo’s poor battery life is a frustrating hurdle that fans will keep butting up against. But UGOBE’s plans to introduce downloadable updates for this robot and to let others create programs for Pleo may give new life to this clever creature.

• Email mossbergsolution@wsj.com

Last year, when Microsoft Corp. introduced its Zune music player to take on Apple’s iPod juggernaut, the software giant struck out. While the Zune had a good user interface and a larger screen than the iPod, it was bigger and boxier, with clumsier controls, weaker battery life and more complex software. Its companion online music store had a much smaller catalog, a more complicated purchase process and no videos for sale. And the Zune’s most innovative feature, built-in Wi-Fi networking, was nearly useless and added little value to the players, which sold so poorly that Apple barely noticed.

The Zune Pad adds touch functionality for improved navigation.

But Microsoft is nothing if not persistent, and this week, the company is back with a second, improved round of Zunes. The chunky, older 30-gigabyte model remains in the lineup, but it’s joined by a slimmed-down full-size Zune that holds 80 gigabytes, and by a much smaller model that holds four or eight gigabytes. Prices range from $150 to $250. The 80-gigabyte Zune is available only in black, and the others come in red, green, black and pink.

We’ve been testing these new Zunes and find them to be notably better than last year’s entry. They are smaller, lighter and more attractive, and they include three big improvements. First is a new controller, called a Zune Pad, that combines buttons with a touch pad for scrolling. Second is a completely overhauled, simpler PC-software program and online store, the Zune Marketplace. Third is expanded usability of the built-in Wi-Fi, which allows you to synchronize your Zune and your PC without plugging in a cable and makes sharing songs between Zunes — its only function last year — slightly better.

Zune’s Marketplace is visually attractive.

Unfortunately for Microsoft, Apple hasn’t been standing still, either. It now has its own large-screen, wireless model, the iPod Touch, with a radical “multi-touch” interface like the iPhone’s. The screen on the Touch is larger than the one on the bigger Zunes and is much sharper. Its Wi-Fi allows you to browse the Web, watch YouTube videos and even buy music without a PC — none of which is possible on a Zune — though the Touch is $50 more and holds much less content than the new full-size Zune.

Microsoft’s new Zunes are directly aimed at the iPod Classic, Apple’s full-size, high-capacity model, and the iPod nano, its compact version. But, here again, Apple has been on the move. The 80-gigabyte Classic, which costs the same as the 80-gigabyte Zune, is slimmer than the Zune and has a flashy new interface, if a smaller screen. And the eight-gigabyte nano, which costs the same as the eight-gigabyte Zune, now plays videos and is much smaller — yet has a larger screen. Neither of these iPods includes Wi-Fi.

In addition, Apple has spiffed up its iTunes software, adding various features, including the addictive Cover Flow, which allows you to flip through all your albums with just a flick of the mouse. Cover Flow also shows up on the nano, the Classic and the Touch. Even the new Zune PC software has no interface as compelling.

And Apple still trounces Microsoft in the selection of media it sells. The iTunes store offers more than six million songs, about double what the Zune Marketplace offers, and dwarfs Microsoft’s selection of Podcasts and music videos, as well. Plus, Zune Marketplace still doesn’t sell any TV shows, movies or audiobooks, while iTunes does.

Radio Feature

Overall, we still don’t think the Zune line beats the iPods and iTunes. However, one of the Zunes, the full-size Zune 80, could give the iPod some competition, especially among new digital-player buyers who aren’t invested in the iTunes ecosystem. For the same price, it offers a significantly larger screen (albeit with the same resolution), wireless syncing and sharing, and a built-in FM radio — an existing Zune feature that the iPod lacks.

We tested the $249.99 80-gigabyte Zune 80 against Apple’s iPod Classic with the same capacity and price and then did the same for the $199.99 eight-gigabyte Zune 8 compared with the iPod nano equivalent.

We didn’t get a chance to test the battery life on the new Zune models or that of the iPod Classic and nano. But Microsoft concedes that unless you turn off Wi-Fi — one of the Zune’s key advantages — its claimed battery life is lower than Apple’s claims. Microsoft estimates as many as 19 and 24 hours of music playback with Wi-Fi on for the eight- and 80-gigabyte, respectfully. Apple claims as many as 24 hours and 30 hours, respectively, on the competitive models, which lack Wi-Fi. In the past, Apple has generally understated its battery claims, while last year, Microsoft overstated its claims.

Easier Navigating

On both Zunes, the front hosts just three buttons: the Zune Pad, a back button and a Play/Pause button. Its menus are divided into Music, Videos, Pictures, Social, Radio, Podcasts and Settings; navigating through this menu list and hundreds of songs is made easier with the Zune Pad’s touch functions. To zip through a list, we flicked a finger up or down. The top, bottom, right and left sides each work as individual buttons, as does the center of the Zune Pad.

The user interface is mainly unchanged from last year and still works very well, requiring an economical number of steps for each action.

Zune’s black, red and green colors are fine, but rather masculine — the latter reminded us of camouflage. But the pink was a glaring shade more appropriate for My Little Pony; it looks like an afterthought.

We initiated wireless syncs with the Zune software program, plugging the player into our PC the first time but leaving it disconnected each time after that. Wireless syncing took a little longer than with a cord and must be initiated by the user from within the player’s settings. One frustration: Presumably to save battery life, the Zune disconnects from the network periodically and then must reconnect the next time you want to use the Wi-Fi. Also, the Zune can’t wirelessly sync if you’re at a public hot spot that requires you to log in or pay.

Intelligent Syncing

This year’s Zunes also introduce a concept Microsoft intends to build on: intelligent, or automated, syncing. If you have your Zune set to sync only some of your music, not all, and drag an artist’s name onto the Zune icon in the PC software, the software will thereafter automatically sync every song you add to the PC from that artist. Microsoft believes many people would welcome such automation.

The Zune’s FM radio is well-designed and easy to use. Using the Zune Pad to flick left or right along the station grid, our Zunes detected numerous static-free stations, and we marked certain stations as presets by holding down the center button. Each radio’s digital data appeared on-screen, including the artist and song title.

We shared songs between our Zunes, beaming tracks from the 80-gigabyte to the eight-gigabyte and vice versa. A wirelessly shared song can be played by the recipient three times whenever they choose. Microsoft has removed the three-day time limit that applied last year. A minute of playing time, or half the duration of a song (whatever comes first) constitutes one play. At first, it took our Zunes a couple tries to recognize one another, even though they were both set to share music. And we noted that invitations to accept shared music don’t include any information about the music, so you could get stuck downloading an annoying tune or one you already own.

Photo Finish

Photos and videos looked great on the Zunes — about as good as they do on the comparable iPod nanos and better than on the iPod Classic because that iPod model’s screen is much smaller than its Zune counterpart’s. However, album art, which is often lower-resolution than normal photos, looked grainier on the big Zune than on the big iPod. And none of the Zunes came close to the stunning photo and video quality offered on the iPod Touch and the iPhone.

We didn’t get to test Zune’s a la carte point system for buying and downloading tracks because it wasn’t up and running yet. Neither were music-video downloads. We each had Zune Pass accounts, which work like subscriptions. If the Zune account stops, all content acquired during the user’s subscription is lost.

Album Focus

Navigating through Zune’s software can be a tad confusing. Four categories at the top left of your PC’s screen are meant to help: Collection, Device, Marketplace and Social. Collection shows your downloaded or owned content and focuses a bit too much on albums, which are becoming less significant with the ever-growing popularity of digital music. One example of this is the Collection’s default center panel shows album art sorted by date added.

Zune Marketplace’s artist pages really shine. Upon selecting a band or artist, a rich, full-screen background image of that group or person appears on the page with lists of songs floating atop the image. Various still photos of each artist are included; we found 10 for Mary Chapin Carpenter and 15 for Nelly Furtado.

A full-screen artist page for Avril Lavigne on Zune Marketplace

After listening to a Yo-Yo Ma album in her music collection, Katie wanted to download additional performances of the famous cellist from the Zune Marketplace online store. But, unlike iTunes, Zune’s software program doesn’t offer a way to link directly from your Collection to Marketplace for buying more of a certain artist or another song from an album you already own.

Another navigational hiccup in Zune’s Marketplace is its inability to bookmark searches. If, after searching in Zune’s online store to buy and download more Yo-Yo Ma, Katie looked in her Collection to see which piece she played last or liked most, then returned to the online store, her Marketplace store search would be lost and she’d need to start over. The iTunes store bookmarks your place during searches, allowing you to navigate through any other part of iTunes before returning to the idle search.

Zune tries to compensate for this glitch by identifying songs in the online store that you already own — either bought through Zune Marketplace or from other sources — with an “In Collection” label so you don’t accidentally buy content you already own. Likewise, if a song in your Collection is already synched to be on the player, a tiny Zune icon appears beside that song title.

Unlike iTunes, Zune software can’t create smart playlists. And it only offers two views, Browse and List, versus three in iTunes: Cover Flow, lists, and lists with album art.

Microsoft has greatly improved the Zune hardware and software this time. But it seems to be competing with Apple’s last efforts, not its newest ones.

• Email mossbergsolution@wsj.com