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| Manufacturer | HTC | LG | Sony |
| Announced | February 2011 | January 2012 | June 2012 |
| Status | Available - May 2011 | Available - February 2012 | Available - August 2012 |
| Colors | Black, Silver, Brown, Lilac | Black, White | Classic Black, Classic White, Deep Red, Navy Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
101.3 x 59.4 x 12.4 mm (3.99 x 2.34 x 0.49 in) |
102.6 x 61.6 x 11.85 mm (4.04 x 2.43 x 0.47 in) |
103 x 57 x 13 mm (4.06 x 2.24 x 0.51 in) |
| Weight | 105 g (3.7 oz) | 109 g (3.84 oz) | 99.4 g (3.49.0.14 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 HSDPA 850 / 1900 or HSDPA 2100 (Australia) |
HSDPA 900 / 2100 | HSDPA 900 / 2100 - ST21i HSDPA 850 / 1900 / 2100 - ST21a |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread) | Android OS, v2.3 (Gingerbread) | Android OS, v4.0.3 (Ice Cream Sandwich) |
| Processor | 600MHz ARM 11 processor, Qulacomm MSM7227 chipset | 800 MHz | 800 MHz, Qualcomm MSM7227A |
| GPU | Adreno 200 | Adreno 200 | Adreno 200 |
| RAM | 512 MB | 384 MB | 512 MB |
| Internal Memory | 512 MB ROM | 1 GB storage | 2.9 GB storage (2.5 GB user available) |
| External Memory | microSD, up to 32GB, 2GB included | microSD, up to 32GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 256K colors | 262K colors | 256K colors |
| Size | 3.2 inches | 3.2 inches | 3.2 inches |
| Resolution | 320 x 480 pixels (180 ppi) | 240 x 320 pixels (125 ppi) | 320 x 480 pixels (180 ppi) |
| Screen-to-Body Ratio | 50.83% | 50.17% | 52.10% |
| Multi-Touch | ![]() |
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| 3.5mm Jack | ![]() |
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| Radio | Stereo FM radio with RDS | Stereo FM radio | Stereo FM radio with RDS |
| Games | Yes | Yes | Yes + Downloadable |
| Loud Speaker | ![]() |
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| Rear Camera | 5 MP, 2592 x 1944 pixels | 3.15 MP, 2048x1536 pixels | 3.15 MP, 2048x1536 pixels |
| Flash | LED flash | No | No |
| Features | Auto focus, Geo-tagging, Face Detection | Auto focus, Geo-tagging | Geo-tagging |
| Video | Yes, VGA@24fps | Yes | Yes, VGA |
| Front Camera | No [Similar] | No [Similar] | No [Similar] |
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| GPRS | Up to 114 kbps | Yes | Up to 86 kbps |
| Edge | Up to 560 kbps | Yes | Up to 237 kbps |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 384 Kbps | HSDPA, 3.6 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP, EDR | Yes, v2.1 with A2DP | Yes, v2.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML | HTML |
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| Internal | 512 MB ROM, 512 MB RAM (418 MB user-available) | 1 GB storage, 384 MB RAM | 2.9 GB storage (2.5 GB user available), 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 2GB included | microSD, up to 32GB | microSD, up to 32 GB |
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| Fingerprint | ![]() |
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| Proximity Sensor | ![]() |
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| Accelerometer Sensor | ![]() |
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| NFC | ![]() |
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| Type | Standard battery, Li-Ion | Standard battery, Li-Ion | Standard battery, Li-Ion |
| Capacity | 1230 mAh | 1500 mAh | 1500 mAh |
| Stand by | Up to 360 h (2G) Up to 570 h (3G) |
Up to 673 h (2G) Up to 640 h (3G) |
Up to 470 h (2G) Up to 545 h (3G) |
| Talk Time | Up to 7 h 10 min (2G) Up to 5 h 50 min (3G) |
Up to 15 h (2G) Up to 8 h (3G) |
Up to 5 h (2G) Up to 4 h 30 min (3G) |