Phone Comparison - Samsung Galaxy Y Duos vs Samsung Galaxy Ace Duos vs Alcatel One Touch Star
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| Manufacturer | Samsung | Samsung | Alcatel |
| Announced | December 2011 | May 2012 | February 2013 |
| Status | Available - February 2012 | Available - June 2012 | Available - March 2013 |
| Colors | Black | Black | Black, White, Orange |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
109.8 x 60 x 12 mm (4.32 x 2.36 x 0.47 in) |
112.7 x 61.5 x 11.5 mm (4.44 x 2.42 x 0.45 in) |
117.9 x 60.8 x 9.7 mm (4.64 x 2.39 x 0.38 in) |
| Weight | 109 g (3.84 oz) | 122 g (4.3 oz) | 119.5 g (4.2.0.18 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 - 6010 GSM 850 / 900 / 1800 / 1900 - 6010D (SIM 1 & SIM 2) |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread) | Android OS, v2.3 (Gingerbread) | Android OS, v4.1 (Jelly Bean) |
| Processor | 832 MHz | Dual-core 1 GHz | |
| GPU | - | ||
| RAM | 384 MB | N/A | 512 MB |
| Internal Memory | 512 MB ROM | 3 GB storage, 512 MB | 4 GB (2.4 GB user available) |
| External Memory | microSD, up to 32GB, 2 GB included | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | AMOLED capacitive touchscreen |
| Colors | 256K colors | 16M colors | 16M colors |
| Size | 3.14 inches | 3.5 inches | 4.0 inches |
| Resolution | 240 x 320 pixels (127 ppi) | 320 x 480 pixels (165 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 46.63% | 52.52% | 63.66% |
| 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 | 3.15 MP, 2048x1536 pixels | 5 MP, 2592x1944 pixels | 5 MP, 2592х1944 pixels |
| Flash | No | No | LED flash |
| Features | Geo-tagging | Auto focus, Geo-tagging | Auto focus, Geo-tagging |
| Video | Yes, QVGA@24fps | Yes | Yes |
| Front Camera | No [Similar] | No [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps | HSDPA, 7.2 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes |
| Browser | HTML, Adobe Flash | HTML | HTML |
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| Internal | 512 MB ROM, 384 MB RAM | 3GB storage, 512 MB | 4 GB (2.4 GB user available), 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 2 GB 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-Ion | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1300 mAh | 1300 mAh | 1500 mAh |
| Stand by | Up to 520 h (2G) Up to 410 h (3G) |
Up to 300 h (2G) Up to 280 h (3G) |
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| Talk Time | Up to 6 h 30 min (2G) Up to 16 h 40 min (3G) |
Up to 4 h 30 min (2G) Up to 3 h 30 min (3G) |
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