Palm, Inc. & PalmOne, Inc.
- Pilot 1000 (as division of U.S. Robotics) -- Palm OS 1.0 - 16 MHz, 128 KB RAM
- Pilot 5000 (as division of U.S. Robotics) -- Palm OS 1.0 - 512 KB RAM
- PalmPilot Personal (as division of U.S. Robotics) -- Palm OS 2.0
- PalmPilot Professional (as division of U.S. Robotics) -- Palm OS 2.0 - 1 MB RAM, Backlight
- Palm III -- Palm OS 3.0 - 2 MB RAM (update possible to 3.3 (website))
- Palm IIIc -- Palm OS 3.5.3 - Palm's 1st color screen, 4k-color
- Palm IIIe -- Palm OS 3.1 - "2 MB RAM", No flash OS Upgrade
- Palm IIIx -- Palm OS 3.1 - 4 MB RAM (update possible to 3.3 (website) or 4.1 (CD))
- Palm IIIxe -- Palm OS 3.5 - 8 MB RAM (update possible to 4.1 (CD) & a 3.5 patch Available from website (3.5.3))
- Palm V -- Palm OS 3.1 (later 3.3) - thin, sleek, metal case
- Palm VII -- Palm OS 3.2 - Wireless
- Palm VIIx Palm OS 3.5 (update possible to 3.5.3)
- Palm Vx -- Palm OS 3.3 (update possible to 3.5 and then 3.5.3 (website) or 4.1 (CD)) 8Mb RAM & B&W screen thin, sleek, metal case
- Palm m100 -- Palm OS 3.0 2Mb RAM & B&W screen
- Palm m105 -- Palm OS 3.5 8Mb RAM & B&W screen
- Palm m125 -- Palm OS 4.0 8Mb RAM & B&W screen
- Palm m130 -- Palm OS 4.1 8Mb RAM & color screen, 4k-color
- Palm m500 -- Palm OS 4.0 (later 4.1) 8Mb RAM & B&W screen thin, sleek, metal case
- Palm m505 -- Palm OS 4.0 8Mb RAM & color screen, 4k-color thin, sleek, metal case
- Palm m515 -- Palm OS 4.1 16Mb RAM & color screen, 4k-color thin, sleek, metal case
- Palm i705 -- Palm OS 4.1
- Palm Centro -- Palm OS 5.4.9 & MP3 player & 64k color screen (combo Cell phone+PDA similar to the Treo line)
Read more about this topic: List Of Palm OS Devices