| GENERAL | 2G Network | GSM 1900/1800/900/850 |
| 3G Network | HSDPA 2100 | |
| Announced | 2008, February. Released 2008, October | |
| Status | Discontinued | |
| HSDPA 850 / 1900 / 2100 - XPERIA X1a | ||
| BODY | Dimensions | 110.5 x 52.6 x 17mm |
| Weight | 145 g | |
| Keyboard | QWERTY | |
| DISPLAY | Size | 480 x 800 pixels , 3 inches, (311 ppi pixel density) |
| Type | TFT resistive touchscreen, 65K colors | |
| - Optical trackpad | ||
| SOUND | Alert types | Vibration; Downloadable polyphonic, MP3 ringtones, composer |
| Loudspeaker | Yes | |
| 3.5mm jack | Yes | |
| MEMORY | Card slot | microSD |
| Internal | 256 MB RAM, 512 MB ROM | |
| DATA | Bluetooth | v2 |
| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | |
| EDGE | Yes | |
| Speed | HSDPA, 7.2 Mbps; HSUPA, 2 Mbps | |
| WLAN | Wi-Fi 802.11b/g | |
| USB | Yes, v2.0 miniUSB | |
| CAMERA | Primary | 3.15 MP, 2048x1536 pixels, autofocus, LED flash |
| Features | Touch focus | |
| Video | Yes, VGA@30fps | |
| Secondary | Videocall camera | |
| FEATURES | OS | Microsoft Windows Mobile 6.1 Professional |
| Chipset | Qualcomm MSM7200 | |
| CPU | 528 MHz ARM 11 | |
| Messaging | SMS (threaded view), MMS, Email, Push email, IM | |
| Browser | WAP 2.0/HTML (IE), RSS feeds | |
| Radio | Stereo FM radio with RDS | |
| GPS | Yes, with A-GPS support | |
| Java | Yes, MIDP 2.0 | |
| Colors | Solid Black, Steel Silver | |
| - MP3/AAC/MP4 player | ||
| - Pocket Office (Word, Excel, PowerPoint, OneNote, PDF viewer) | ||
| - Picture editor/blogging | ||
| - Organizer | ||
| - Predictive text input | ||
| - Voice memo/dial | ||
| BATTERY | Talk Time | Up to 10 h (2G) / Up to 6 h (3G) |
| Stand-By | Up to 833 h (2G) / Up to 640 h (3G) | |
| Standard battery, Li-Po 1500 mAh (BST-41) | ||
| MISC | SAR EU | 0.57 W/kg (head) |

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