Zire 31
| Company type | Private |
|---|---|
| Industry | Consumer electronics |
| Products | Zire 31 PDA |
The Zire 31 is a portable personal digital assistant developed by palmOne, introduced in April 2004 as the follow-up to the Zire 21. It runs on Palm OS 5.2.8 and showcases a color screen with a resolution of 160×160 pixels. The device includes an SDIO expansion slot and a conventional 3.5mm audio jack. It comes equipped with upgraded personal information management tools such as Calendar, Contacts, Tasks, and Memos, along with an integrated RealOne Player for audio playback, which can be enhanced through third-party applications like TCPMP. The Zire 31 features a five-way navigation pad but offers only two shortcut buttons, fewer than the four found on mid-tier models like the Zire 71 and Zire 72. Eventually, the Z22 succeeded this model, eliminating both the SD/MMC/SDIO slot and the headphone jack.
Specifications
| Processor | 200 MHz Intel Xscale PXA255 CPU (ARM v5TE architecture) |
| Memory | 16 MB RAM (comprising 13.8 MB user-accessible storage plus 1 MB dynamic heap) |
| Battery | Rechargeable lithium-polymer battery with a capacity of 900mAh |
| Operating System | Palm OS version 5.2.8 |
| Dimensions | 4.6 in × 3.0 in × 0.7 in (11.2 cm × 7.4 cm × 1.6 cm) |
| Weight | 4.8 oz (136 g), including stylus |
| Display | CSTN color display, 160×160 pixels, supporting 4096 colors (12-bit) |
| Expansion | Built-in slot supporting SD, SDIO, and MMC cards up to 1 GB; SDHC compatibility available through third-party software |
| Audio | Mono speaker and standard 3.5mm headphone connector |
| Connectivity | Infrared interface (IrDA) |
See also
References