Phone Comparison - Samsung Galaxy Ace Duos vs Lenovo S660 vs Lenovo A889
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| Manufacturer | Samsung | Lenovo | Lenovo |
| Announced | May 2012 | February 2014 | May 2014 |
| Status | Available - June 2012 | Coming Soon - June 2014 | Available - May 2014 |
| Colors | Black | Metallic Black | White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112.7 x 61.5 x 11.5 mm (4.44 x 2.42 x 0.45 in) |
137 x 68.8 x 9.95 mm (5.39 x 2.71 x 0.39 in ) |
164 x 85.4 x 9 mm (6.46 x 3.36 x 0.35 in) |
| Weight | 122 g (4.3 oz) | 151 g (5.33 oz) | 192 g (6.77 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 |
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 HSDPA 850 / 1900 |
HSDPA 900 / 2100 |
| Messaging | SMS, MMS | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread) | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) |
| Processor | 832 MHz | Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582M | Quad-core 1.3 GHz, Mediatek MT6582 |
| GPU | Mali-400MP2 | Mali-400 | |
| RAM | N/A | 1 GB | 1 GB |
| Internal Memory | 3 GB storage, 512 MB | 8 GB ROM | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 4.7 inches | 6.0 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 540 x 960 pixels (234 ppi) | 540 x 960 pixels (184 ppi) |
| Screen-to-Body Ratio | 52.52% | 64.80% | 70.53% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM Radio with Recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 8 MP, 3264x2448 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, Geo-tagging |
| Video | Yes | Yes, 1080p@30fps | Yes |
| Front Camera | No [Similar] | Yes, VGA [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v3.0 with A2DP, HS | Yes, v3.0 |
| 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, USB On-the-go | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML |
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| Internal | 3GB storage, 512 MB | 8 GB ROM, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
| USB OTG | - | Supported | - |
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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 | Non-removable Li-Po Battery | Li-Ion Battery |
| Capacity | 1300 mAh | 3000 mAh | 2500 mAh |
| Stand by | Up to 520 h (2G) Up to 410 h (3G) |
- | - |
| Talk Time | Up to 6 h 30 min (2G) Up to 16 h 40 min (3G) |
Up to 10 h (2G) Up to 8 h (3G) |
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