| General | |
| Manufacturer: | Garmin-Asus |
| Model: | M20 |
| Year: | 2009 |
| Operating system: | Windows Mobile 6.1 Pro, Windows Mobile 6.5 Pro |
| Capacity battery (MAh): | 920 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
52.5 x 95.3 x 12.8 |
| Weight (g): | 99 |
| Processor | |
| Processor Type: | Qualcomm MSM7200A |
| Clock Frequency (MHz): | 528 |
| Memory | |
| Random access memory (RAM) (MB): | 288 |
| Read-only memory (ROM) (MB): | 256 |
| Communications | |
| Phone: | GSM 1800, GSM 1900, GSM 900, UMTS 2100, UMTS 900 |
| Bluetooth: | 2.0 |
| Wi-Fi: | 802.11b,g |
| Other: | EDGE, GPRS, GPS, HSDPA, HSUPA, UMTS/WCDMA |
| Extras: | A-GPS, Geotagging |
| Multimedia | |
| Screen Size: | 2.8 |
| Screen Resolution (px): | 480 x 640 |
| Screen type: | TFT |
| Accelerator: | Adreno 130 |
| Rear camera (Mp): | 3 |
| Speaker: | mono |
| Output of earphones: | miniUSB |
| Other: | G-Sensor, Light sensor |
| Management and input | |
| Touchscreen: | resistive |
| Buttons: | navigation buttons, physical buttons |
| Extension | |
| Connectors: | miniUSB |
| Additionally | |
| Features: | 4 Gb internal memory, extended complectation (with cover, spare battery, stylus, full auto kits, cleaning cloth for the screen) |