Phone Comparison - Samsung Galaxy Gio S5660 vs Samsung Galaxy Ace 2 vs Samsung Galaxy Star Duos S5282
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | January 2011 | February 2012 | April 2013 |
| Status | Available - March 2011 | Available - May 2012 | Available - May 2013 |
| Colors | Black, Silver White | Black | Black, White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
110.5 x 57.5 x 12.2 mm
(4.35 x 2.26 x 0.48 in ) |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
105 x 58 x 11.9 mm (4.13 x 2.28 x 0.47 in) |
| Weight | 102 g (3.6 oz) | 122 g (4.3 oz) | 100.5 g (3.53.0.18 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | N/A |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.2 (Froyo), upgradable to v2.3 | Android OS, v2.3 | Android OS, v4.1.2 (Jelly Bean) |
| Processor | 800 MHz, Qualcomm QCT MSM7227-1 Turbo | Dual-core 800 MHz, NovaThor U8500 | 1 GHz, Spreadtrum SP8810 |
| GPU | Mali-400MP | Mali-300 | |
| RAM | 278 MB | 768 MB | 512 MB |
| Internal Memory | 158 MB storage | 4 GB storage | 4 GB |
| 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 | PLS TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 65K colors |
| Size | 3.2 inches | 3.8 inches | 3.0 inches |
| Resolution | 320 x 480 pixels (180 ppi) | 480 x 800 pixels (246 ppi) | 240 x 320 pixels (133 ppi) |
| Screen-to-Body Ratio | 48.14% | 55.64% | 45.99% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | Stereo FM radio with RDS, FM Recording |
| Games | Yes + downloadable | Yes | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048x1536 pixels | 5 MP, 2592x1944 pixels | 2 MP, 1600x1200 pixels |
| Flash | No | LED flash | No |
| Features | Auto focus, Geo-tagging, Smile Detection | Auto focus, Geo-tagging, Face And Smile Detection | Fixed Focus, Smile Shot, |
| Video | Yes, QVGA@15fps | Yes, 720p@30fps | Yes, QVGA@15fps |
| Front Camera | No [Similar] | Yes, VGA [Similar] | No [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps | HSDPA, 14.4 Mbps | No |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | Yes, v2.0 microUSB | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | No |
| Browser | HTML | HTML | HTML |
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| Internal | 158 MB storage, 278 MB RAM | 4 GB storage, 768 MB RAM | 4 GB, 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 | Li-Ion Battery |
| Capacity | 1350 mAh | 1500 mAh | 1200 mAh |
| Stand by | Up to 610 h (2G) Up to 460 h (3G) |
Up to 670 h (2G) Up to 640 h (3G) |
Up to 320 h |
| Talk Time | Up to 10 h 40 min (2G) Up to 6 h 40 min (3G) |
Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
Up to 14 h |
