100 is powered by the Motorola EZ Dragonball processor operating at 16MHz, and it has 2 Megabytes of RAM. It was released in August 2000. It is 4.66 inches high, 3.10 inches wide, and 0.72 inches thick. It weighs 3.7oz without batteries or screen cover. It came with a serial cable to sync with a computer and a CD ROM with Palm Desktop software. It has a durable plastic screen that will withstand falls better than glass screens, and it comes with a hinged screen cover that hangs over the screen when not in use. [1]
The m105 is identical to the m100 but it contains 8 Megabytes of RAM, and in the box a cradle is included instead of a cable. The m105 had a problem whereby the capacitor that saved the contents of the RAM when changing batteries would fail. Several hardware hacks are available that fix this error.
The m125 is powered by the Motorola VZ Dragonball processor operating at 33MHz. It has a 160x160 pixel greyscale LCD screen and 8 Megabytes of RAM. It originally shipped with Palm OS 4.0. The cradle connection and expansion port differs from that of the earlier models, and is identical to that of the Palm m500 series, and this model shipped with a synchronization cradle that connected to the USB port (M100 and M105 connected via the PC's serial port.) This handheld also features a memory slot which takes a SD or MMC format external memory. [2] The Palm m125 is the last PDA manufactured by Palm that accepts user-replaceable AAA batteries.