| General |
| 2G Network | GSM 850 / 900 / 1800 / 1900 |
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| 3G Network | HSDPA 900 / 2100 - ST21i HSDPA 850 / 1900 / 2100 - ST21a |
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| Status | Available. Released 2012, August |
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| Body |
| Dimensions | 103 x 57 x 13 mm (4.06 x 2.24 x 0.51 in) |
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| Display |
| Type | TFT capacitive touchscreen, 256K colors |
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| Size | 320 x 480 pixels, 3.2 inches (~180 ppi pixel density) |
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| Protection | Scratch-resistant glass |
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| Sound |
| Alert types | Vibration; MP3 ringtones |
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| Memory |
| Card slot | microSD, up to 32 GB |
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| Internal | 2.9 GB (2.5 GB user available), 512 MB RAM |
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| Data |
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| Speed | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps |
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| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
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| Bluetooth | Yes, v2.1 with A2DP |
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| Camera |
| Primary1 | 3.15 MP, 2048x1536 pixels |
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| Features |
| OS | Android OS, v4.0.4 (Ice Cream Sandwich) |
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| Chipset | Qualcomm MSM7225AA |
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| Sensors | Accelerometer, proximity, compass |
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| Messaging | SMS (threaded view), MMS, Email, IM, Push Email |
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| Browser | HTML, Adobe Flash |
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| Radio | Stereo FM radio with RDS |
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| GPS | Yes, with A-GPS support |
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| Java | Yes, via Java MIDP emulator |
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| Colors | Classic Black, Classic White, Deep Red, Navy Blue - SNS integration
- MP4/H.264/WMV player
- MP3/WMA/WAV/eAAC+ player
- Organizer
- Document viewer
- Voice memo/dial
- Predictive text input Li-Ion 1500 mAh battery |
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| Battery |
| Battery | Li-Ion 1500 mAh battery |
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| Stand by | Up to 470 h (2G) / Up to 545 h (3G) |
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| Talk time | Up to 5 h (2G) / Up to 4 h 30 min (3G) |
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| Misc |
| SAR US | 1.37 W/kg (head) 0.74 W/kg (body) |
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| SAR EU | 1.62 W/kg (head) 1.30 W/kg (body) |
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