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| Manufacturer | Motorola | Motorola | Sony |
| Announced | August 2011 | March 2012 | June 2012 |
| Status | Available - September 2011 | Available - March 2012 | Available - August 2012 |
| Colors | Black, White | Brown, White | Classic Black, Classic White, Deep Red, Navy Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
107 x 59 x 13.4 mm (4.21 x 2.32 x 0.53 in) |
115 x 57.9 x 11.9 mm (4.53 x 2.28 x 0.47 in) |
103 x 57 x 13 mm (4.06 x 2.24 x 0.51 in) |
| Weight | 118 g (4.16 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 / 2100 or HSDPA 850 / 1900 |
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 | 1 GHz Cortex-A8, TI OMAP 3620 | 1 Ghz Single Core | 800 MHz, Qualcomm MSM7227A |
| GPU | PowerVR SGX530 | Adreno 200 | |
| RAM | 512 MB | 512 MB | 512 MB |
| Internal Memory | 2 GB storage | N/A | 2.9 GB storage (2.5 GB user available) |
| External Memory | microSD, up to 32GB, 2GB included | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 256K colors |
| Size | 3.7 inches | 3.7 inches | 3.2 inches |
| Resolution | 480 x 854 pixels (265 ppi) | 480 x 854 pixels (265 ppi) | 320 x 480 pixels (180 ppi) |
| Screen-to-Body Ratio | 59.65% | 56.56% | 52.10% |
| Multi-Touch | ![]() |
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| 3.5mm Jack | ![]() |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | ![]() |
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| Rear Camera | 5 MP, 2592x1944 pixels | 5 MP, 2592х1944 pixels | 3.15 MP, 2048x1536 pixels |
| Flash | LED flash | LED flash | No |
| Features | Auto focus, Geo-tagging, Image Stabilization | Auto focus, Geo-tagging, Image Stabilization | Geo-tagging |
| Video | Yes, @30fps | Yes, WVGA@30fps | Yes, VGA |
| Front Camera | No [Similar] | Yes, VGA [Similar] | No [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Up to 86 kbps |
| Edge | Class 12 | Class 12 | Up to 237 kbps |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 2 Mbps | HSDPA, HSUPA | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP, EDR | Yes, with A2DP | Yes, v2.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0, HS | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML, Adobe Flash | HTML, Adobe Flash | HTML |
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| Internal | 2 GB storage, 512 MB RAM, 1 GB ROM | 512 MB RAM, 1 GB ROM | 2.9 GB storage (2.5 GB user available), 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 2GB included | microSD, up to 32 GB | 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-Po | Standard battery, Li-Ion | Standard battery, Li-Ion |
| Capacity | 1700 mAh | 1650 mAh | 1500 mAh |
| Stand by | Up to 384 h | Up to 290 h | Up to 470 h (2G) Up to 545 h (3G) |
| Talk Time | Up to 7 h 10 min | Up to 9 h | Up to 5 h (2G) Up to 4 h 30 min (3G) |