HP TouchSmart tx2-1275dx review: HP TouchSmart tx2-1275dx

The TouchSmart tx2-1275dx bears resemblance to HP's Pavilion laptops, with its tapered edges, rounded corners, and Imprint finish. The tablet features a charcoal gray chassis with a silver design that looks like bubbles, clouds, or perhaps amoebas. Call it funky yet subtle.

At 4.8 pounds, the TouchSmart tx2-1275dx is one of the heavier ultraportables you'll come across. We typically see 13- and 14-inch laptops clock in around the 5-pound mark. The Dell Studio S1440-022B is a 14-inch model that weighs an ounce less than the TouchSmart tx2 (though it skips out on an optical drive). You can save weight by replacing the TouchSmart's DVD burner with an included plastic space-holder.

The keyboard is quiet and relatively roomy, for a 12-inch laptop. The page up and down, home, and end keys that normally reside along the right edge of a keyboard have been relocated to right-hand side of the tiny top row of F keys. If you're accustomed to navigating Web pages and Word docs via the page up and page down keys, you might want to instead get acquainted with the pen flicks functionality of the touch screen. Simply flick the included stylus or your fingertip up or down a long document or Web page to scroll. A grid of tiny dimples comprises the touch pad, which is very responsive. A smooth strip runs down along the right side, which acts as a vertical scroll area that's easy to find blindly.

The 12.1-inch wide-screen LCD screen offers a 1,280x800-pixel native resolution, which is standard for a screen this size. Of course this being a tablet, the screen is a little more important than a standard laptop LCD. The TouchSmart tx2-1275dx has a dual-mode display, meaning you can use a digital pen for drawing and taking notes as well as your finger for navigating, opening apps, and flipping through photos. Thanks to N-trig's DuoSense technology, the screen features some multitouch functionality. Multitouch wasn't working initially on our review unit, but a quick trip to HP's support site to download a new N-trig DuoSense driver corrected the problem. Multitouch lets you can zoom in and out of photos by moving two fingers closer together or farther apart. You can also rotate a photo by anchoring your thumb and moving your index finger in a circular motion. And you can bring up HP MediaSmart interface by drawing a wavy "m" on the desktop. While these multitouch gestures are fun to play around with, simply clicking or tapping the rotate button in your photo viewer is faster. Likewise, the MediaSmart button that sits right next to the display is faster for starting the app. Windows 7 will offer native multitouch support, which we hope will lead to increased functionality.

The display sits on a single, rotating hinge, and the tiny-but-decent-sounding Altec Lansing speakers are built into the bottom of the display. This gives you three options for screen placement: use it like a traditional laptop, face it away from the keyboard for using just the display (for movie or photo viewing), or flatten it down on top of the keyboard for use as a tablet. The screen will autorotate, but there's a rotate key on the bezel should you need it, along with a fingerprint reader and a Webcam.

	HP TouchSmart tx2-1275dx	Average for category [ultraportable]
Video	VGA-out	VGA-out, mini-HDMI or mini-DVI
Audio	Stereo speakers, headphone/microphone jacks	Stereo speakers, headphone/microphone jacks
Data	3 USB 2.0, SD card reader	2 USB 2.0, mini-FireWire, SD card reader
Expansion	ExpressCard/34	ExpressCard/34
Networking	Modem, Ethernet, 802.11 b/g/n Wi-Fi, Bluetooth	Modem, Ethernet, 802.11 b/g/n Wi-Fi, Bluetooth, optional WWAN
Optical drive	DVD burner	DVD burner

Despite the tight dimensions on this 12-inch tablet, it serves up a useful collection of ports. We wish there was an HDMI port, but we were pleased to see Bluetooth included. We were not so pleased to see the virgin hard drive (and desktop) cluttered with bloatware, trial offers for Quicken, Juno, NetZero, and so on. Like it does with its Pavilion laptops, HP includes a tiny Media Center remote control, which can be housed in the ExpressCard/34 slot. Likewise, the tablet's stylus can be tucked away in a slot on the right side.

The HP TouchSmart tx2-1275dx uses a dual-core AMD Turion X2 processor and trailed similarly priced laptops that feature Intel Core 2 Duo chips on CNET Labs' benchmarks. The TouchSmart lagged behind the slowest Core 2 Duo-based laptop on our multitasking test by a healthy 28 percent. It was a whopping 49 percent slower than the closet Core 2 Duo laptop on our Photoshop benchmark. We will say that during anecdotal testing, the TouchSmart tx2-1275dx felt peppy and responsive, under a variety of conditions that included many multitasking scenarios. And we didn't notice any lag when using the multitouch gestures as we did earlier this year.

Juice box

TouchSmart tx2-1275dx
Off (watts)	0.4
Sleep (watts)	1.08
Idle (watts)	15.73
Load (watts)	64.11
Raw (annual kWh)	65.58
Energy Star compliant	Yes
Annual operating cost (@$0.1135/kWh)	$7.44

The TouchSmart tx2-1275dx uses a six-cell battery and lasted only 2 hours 21 minutes on CNET Labs' video playback battery drain test. It didn't last much longer under typical Windows use where we weren't constantly playing a video; the battery ran out around the 2.5-hour mark. For a tablet that's obviously intended to spend a lot of time on the go, we expected better.

Included are HP's priority service and support for tx2 customers featuring an industry-standard one-year parts-and-labor warranty, toll-free 24-7 phone support, and the promise of 1-hour responses to e-mail. The comprehensive support Web site includes real-time chat with a technical support representative, FAQs, and driver downloads.

Find out more about how we test laptops.

System configurations:

HP TouchSmart tx2-1275dx
Windows Vista Home Premium SP1 (64-bit); 2.19GHz AMD Turion X2 Dual-Core RM-74; 4096MB DDR2 SDRAM 800MHz; 320MB ATI Mobility Radeon HD 3200; 320GB Seagate 5,400rpm

Sony Vaio VGN-NW125J/T
Windows Vista Home Premium SP1 (64-bit); 2.1GHz Intel Core 2 Duo T6500; 4096MB DDR2 SDRAM 800MHz; 128MB (Shared) Mobile Intel GMA 4500MHD; 320GB Hitachi 5,400rpm

Asus UX50V-RX05
Windows Vista Home Premium SP1 (64-bit); 1.4GHz Intel Core 2 Solo U3500; 4096MB DDR2 SDRAM 800MHz; 512MB Nvidia GeForce G105M; 500GB Seagate 7,200rpm

Dell Studio S1440-022B
Windows Vista Home Premium SP1 (64-bit); 2.1GHz Intel Core 2 Duo T6500; 3072MB DDR3 SDRAM 1066MHz; 256MB Nvidia GeForce 9400M G; 320GB Toshiba 5,400rpm

Dell Studio XPS 1340-024B
Windows Vista Home Premium SP1 (64-bit); 2.1GHz Intel Core 2 Duo T6500; 4096MB DDR2 SDRAM 800MHz; 256MB Nvidia GeForce 9400M G; 500GB Seagate 7,200rpm

HP Pavilion dv4-1465dx
Windows Vista Home Premium SP1 (64-bit); 2.1GHz Intel Core 2 Duo T6500; 4096MB DDR2 SDRAM 800MHz; 128MB (Shared) Mobile Intel GMA 4500MHD; 320GB Toshiba 5,400rpm

HP Pavilion dv3-2155mx
Windows Vista Home Premium SP1 (64-bit); 2.1GHz Intel Core 2 Duo T6500; 4096MB DDR2 SDRAM 800MHz; 128MB (Shared) Mobile Intel GMA 4500MHD; 500GB Seagate 5,400rpm

Toshiba Satellite E105-S1602
Windows Vista Home Premium SP1 (64-bit); 2.0GHz Intel Core 2 Duo P7350; 4096MB DDR2 SDRAM 800MHz; 128MB (Shared) Mobile Intel GMA 4500MHD; 500GB Toshiba 5,400rpm