Phone Comparison - Lenovo S660 vs Samsung Galaxy Core 2 Duos vs Xiaomi Redmi 1S
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| Manufacturer | Lenovo | Samsung | Xiaomi |
| Announced | February 2014 | June 2014 | May 2014 |
| Status | Coming Soon - June 2014 | Available - July 2014 | Available - May 2014 |
| Colors | Metallic Black | White, Black | Black, Chinese Red, Metallic Gray/ blue, green, yellow panels |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
137 x 68.8 x 9.95 mm (5.39 x 2.71 x 0.39 in ) |
130.3 x 68 x 9.8 mm (5.13 x 2.68 x 0.39 in) |
137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in) |
| Weight | 151 g (5.33 oz) | 138 g (4.87 oz) | 158 g (5.57 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 HSDPA 850 / 1900 |
HSDPA 900 / 2100 | HSDPA 1900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) | Android OS, v4.3 (Jelly Bean) |
| Processor | Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582M | Quad-core 1.2 GHz | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8228 Snapdragon |
| GPU | Mali-400MP2 | - | Adreno 305 |
| RAM | 1 GB | 768 MB | 1 GB |
| Internal Memory | 8 GB ROM | 4 GB | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | IPS LCD Capacitive Touchscreen | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 2 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 4.5 inches | 4.7 inches |
| Resolution | 540 x 960 pixels (234 ppi) | 480 x 800 pixels (207 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 64.80% | 65.25% | 64.61% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio with Recording | FM Radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592 х 1944 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection | Auto focus, 1.4 µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR |
| Video | Yes, 1080p@30fps | Yes | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | 1.3 MP, 720p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v3.0 with A2DP, HS | Yes, v4.0 with A2DP | v4.0, A2DP, LE |
| 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 Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0, USB On-the-go | Yes, microUSB v2.0 | microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 8 GB ROM, 1 GB RAM | 4 GB, 768 MB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 GB |
| USB OTG | Supported | - | 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 | Non-removable Li-Po Battery | Li-Ion Battery | Li-Po Battery |
| Capacity | 3000 mAh | 2000 mAh | 2000 mAh |
| Stand by | - | - | - |
| Talk Time | Up to 10 h (2G) Up to 8 h (3G) |
- | - |
