iPAQ 1945 The iPAQ 1945 has a transflective display, an SD slot that supports SDIO, built-in Bluetooth wireless networking and standard IR. The iPAQ 1945 is the first Pocket PC to run Samsung's S3C2410 266 ARM family processor, which is less expensive and supposedly very power-frugal. The 1945 has 32 megs of ROM and 64 megs of RAM. 56 megs of RAM are available to the user to run and store applications, and 13.24 megs of flash ROM are available as the iPAQ File Store. The battery is user replaceable, which means you can swap a new one in whenever power's running low, or simply replace a tired battery easily. The connector on the 1945 is the same as the iPAQ 1910. Accessories made for the 1910 should work on the 1945. The 1945 offers more expansion options than does the 1910. You can use Bluetooth accessories and SD networking cards such as SanDisk's SD WiFi card. Transflective displays are the best around and the 1945 has one. It's a 3.5" display like the 1910, rather than the 3.8" found on the top of the line iPAQs. Transflective screens reflect ambient light to illuminate the screen and have backlighting.

The sound volume is quite loud. MP3s sound great when using stereo headphones connected to the included 2.5mm to 3.5mm audio adapter. The Audio control panel applet allows you to set the recording environment for the mic, and turn on AGC (automatic gain control). The 1945 has Bluetooth. The interface is the same as the iPAQ 2215, iPAQ 5555 and iPAQ 5450. It's got a very user-friendly wizard interface that walks you through the steps of connecting to Bluetooth devices. The 1945 supports connections to cell phones, access points, other Bluetooth enabled computers and PDAs, ActiveSync and serial connections such as modems and GPS devices. The iPAQ 1945 has a 900 mA Lithium Ion battery which isn't that large compared to full-featured PPCs. It's the same battery used in the 1910, and you should get 3 hours of actual use per charge.