Psion Revo

Psion Revo
A Psion Revo with the Time application open
DeveloperPsion Teklogix
ManufacturerPsion Teklogix
TypePDA
Generation4
Release dateNovember 1999 (1999-11)
Lifespan1999–2003
Operating systemSymbian Release 5 (formally EPOC32)
CPUARM 710T
Display480 × 160 monochrome LCD, 13.1 cm (5.2 in)
InputQWERTY keyboard
Resistive touchscreen
Infrared port
CameraN/A
TouchpadN/A
ConnectivitySerial RS-232 & IrDA 115200 (11,52 KB/s) baud rate
Power2 × internal 700mAh rechargeable Ni-MH AAA batteries
Dimensions157 mm × 79 mm × 17 mm (6.18 in × 3.11 in × 0.67 in)
Weight200 grams (7.1 oz)
PredecessorPsion Series 3
RelatedDiamond Mako
LanguageOpen Programming Language

The Psion Revo, launched in November 1999, is a personal digital assistant (PDA) from Psion. It is the successor to the Psion Series 3 and a light version of Psion Series 5mx. It is software-compatible with the 5mx and has the same processor but is more lightweight (200 grams (7.1 oz) vs 354 grams (12.5 oz) of 5mx) and substantially smaller (157 by 79 by 17 millimetres (6.18 in × 3.11 in × 0.67 in)). Relative to the Series 5 and 5mx, the Revo has a smaller screen (480 × 160 vs 640 × 240 of Series 5–5mx), and lacks a flash-card slot and backlight.

The Revo comes in two variants, Psion Revo and Psion Revo Plus, having 8 and 16 MB of random-access memory (RAM) respectively. It is powered by a 36 MHz ARM architecture 710T microprocessor, and a larger battery for the Plus model. Among other things, the hardware is equipped with a short-range Infrared Data Association (IrDA) wireless infrared communication system and a touchscreen. Like its bigger counterpart Series 5mx, it comes with a small suite of office and communications programs built into the ROM chips. Other programs are user-installable by using a docking station to send Revo programs from a desktop computer.

SONICblue Incorporated produced a version of the Psion Revo Plus renamed to Diamond Mako, which they distributed in the United States and Canada.

Along with Enfour, Psion made two versions of the Revo for the Chinese market named the 618C (Traditional Chinese characters) and 618S (Simplified Chinese characters).