Phone Comparison - Samsung Galaxy Ace 2 vs Samsung S7710 Galaxy Xcover 2 vs Samsung Galaxy 551
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | February 2012 | January 2013 | October 2010 |
| Status | Available - May 2012 | Available - March 2013 | Available - Q4 2010 |
| Colors | Black | Gray | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
130.5 x 67.7 x 12 mm (5.14 x 2.67 x 0.47 in) |
111 x 55 x 15.2 mm (4.37 x 2.17 x 0.6 in) |
| Weight | 122 g (4.3 oz) | 148.5 g (5.22.0.18 oz) | 117 g (4.13 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 900 / 2100 HSDPA 850 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.3 | Android OS, v4.1 (Jelly Bean) | Android OS, v2.2 (Froyo), upgradable to v2.3.6 (Gingerbread) |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Dual-core 1 GHz | 600 MHz, Qualcomm MSM7227 |
| GPU | Mali-400MP | - | Adreno 200 |
| RAM | 768 MB | 1 GB | N/A |
| Internal Memory | 4 GB storage | 4 GB storage | 160 MB |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 32 GB, 1 GB included |
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| Type | PLS TFT capacitive touchscreen | Capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.0 inches | 3.2 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 480 x 800 pixels (233 ppi) | 240 x 400 pixels (146 ppi) |
| Screen-to-Body Ratio | 55.64% | 51.65% | 47.59% |
| 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, Face And Smile Detection | Auto focus, Geo-tagging | Auto focus, |
| Video | Yes, 720p@30fps | Yes, 720p | Yes, QVGA@15fps |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | No [Similar] |
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| GPRS | Yes | Yes | Class 10 (4+1/3+2 slots), 32 - 48 kbps |
| Edge | Yes | Yes | Class 12 |
| 3G | HSDPA, 14.4 Mbps | HSDPA, 14.4 Mbps; HSUPA, 5.76 Mbps | HSDPA, 7.2 Mbps; HSUPA |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP | Yes, v2.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML |
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| Internal | 4 GB storage, 768 MB RAM | 4 GB storage, 1 GB RAM | 160 MB |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 32 GB, 1 GB included |
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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 Battery | Li-Ion Battery |
| Capacity | 1500 mAh | 1700 mAh | 1200 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
Up to 570 h | Up to 520 h (2G) Up to 370 h (3G) |
| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
- | Up to 9 h (2G) Up to 5 h (3G) |
