Offering an impressive resume of good performance and security and wireless features, the HP iPaq hx2750 gets the job done.

Fast processor ; biometric fingerprint reader ; built-in Wi-Fi and Bluetooth ; dual expansion slots ; nice display and included screen cover ; user-replaceable battery

Hefty ; so-so battery life

Solid performance and advanced multimedia capabilities make the Axim X50 a suitable PDA for both serious and more casual users.

Windows Media Player 10.0 Mobile ; fast processor and ample memory ; integrated Wi-Fi and Bluetooth ; sleek design ; user-replaceable battery

Heavy ; small navigation toggle ; lackluster software bundle

Though it lacks Wi-Fi, the T5's solid performance and new features make it a perfect companion for mobile professionals.

Sleek and lightweight design ; 256MB of memory ; doubles as a USB drive ; easy drag-and-drop file transfer ; good battery life ; bright screen

No Wi-Fi

The Dell Axim X50v is filled to the brim with PIM and entertainment features; unfortunately, it suffers from subpar performance.

Large VGA screen ; great graphics ; included gaming bundle ; Windows Media Player 10.0 Mobile ; fast processor and ample memory ; integrated Wi-Fi and Bluetooth ; sleek design ; user-replaceable battery

Heavy ; small navigation toggle ; lackluster software bundle ; so-so battery life and video performance

This smart-looking Pocket PC is feature-laden and offers good performance to thrill advanced handheld users.

VGA display ; dual expansion slots ; USB host capability ; 1.3-megapixel camera with photolight ; integrated Bluetooth ; user-replaceable cells

Poor placement of stylus ; loose back faceplate ; mediocre battery life

If you're a mobile professional who demands the most out of your PDA, the feature-laden hx4700 offers performance that comes close to fulfilling just that.

Zippy performance ; 4-inch TFT ; good wireless connectivity ; large non-volatile memory

Non-inspiring design ; bulky ; pricey

If you're a data-centric user and Bluetooth is not a necessity, the SP230 offers a cost-effective alternative.

Triband ; competent PDA functions ; zippy performance ; non-volatile flash ROM storage ; excellent battery life

Lacks Bluetooth ; no number pad ; antenna stub ; 2.5mm headphone jack

With a combination of small form factor and great performance, the rz1710 is solid entry-level PDA--just be prepared to pay a price.

Thin and light ; long battery life ; multimedia capabilities ; nice screen

Expensive ; no user-replaceable battery ; lacks Bluetooth and Wi-Fi ; no cradle

While the rx3700's Media Companion functions didn't inspire us, this PDA's features and top-notch performance make it well worth considering.

Extralong battery life ; impressive performance ; integrated Wi-Fi and Bluetooth ; built-in camera ; user-replaceable battery

Complicated and immature Mobile Media software

The Pocket LOOX 420 combines a slimline design with a decent specification that includes both Wi-Fi and Bluetooth.

Competitive price ; thin and light ; Bluetooth and Wi-Fi built in

No Flash ROM allocation for user data backup ; flimsy stylus