Handspring Treo 600 The Treo 600 has a bright color display, thumb keyboard, SD slot and an integrated VGA digital camera. It runs Palm OS 5.2.1H on a 144 MHz ARM processor with 32 MB RAM (24 available). The features and processor make it one of the most powerful and feature-rich Palm OS smartphone currently on the market. While smartphones generally lag behind their PDA-only counterparts, the Treo 600 keeps up and won't force you to compromise on many PDA features. On the top of the phone there is an IR port, ringer switch, stylus, SD card slot, power button and antenna. The volume up and down buttons are located on the left side. As you'd expect the sync/charge connector is located on the bottom edge, as is the 2.5mm headset jack. The Treo 600 has an MMC/SD slot supporting SDIO, which means you can use memory expansion cards as well as networking cards such as WiFi cards when drivers become available. If you wish to play MP3s, you'll need to add an MP3 player application and store your music on SD cards. The Treo 600 has an integrated thumb keyboard with an embedded numeric keypad to make entering phone numbers easier. While the keyboard is small, the keys are domed, making it less trying to type.

The display resolution is 160 x 160 pixels and has 3,375 colors which is an unusual 11.5 bit color depth. The Treo 600 supports audible and vibrating alerts and ringers as well as polyphonic sound. The volume controls are located on the side of the phone. The Treo comes with a standard 2.5mm headset with an ear bud and in-line mic. The Treo 600 has an integrated VGA CMOS digital .3 megapixel digital camera capable of taking still photos at 640 x 480 resolution with 4,096 colors. The lens is located on the back of the unit and just as with most phone and PDA cameras, there is no flash. The Treo comes with a camera application, and this is what you'll use to snap photos, view them and even email them using Sprint's Picture Mail service.