Phone Comparison - Lenovo S660 vs Lenovo S580 vs Xiaomi Redmi 2A
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| Manufacturer | Lenovo | Lenovo | Xiaomi |
| Announced | February 2014 | September 2014 | March 2015 |
| Status | Coming Soon - June 2014 | Available - September 2014 | Available - March 2015 |
| Price | - | Rs. 9,999 ($147.04) [Similarly Priced] | Rs. 5,999 ($88.22) [Similarly Priced] |
| Colors | Metallic Black | Black | Black, White, Yellow, Pink, Green |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
137 x 68.8 x 9.95 mm (5.39 x 2.71 x 0.39 in ) |
139.8 x 69.9 x 8.1 mm (5.5 x 2.75 x 0.32 in) |
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| Weight | 151 g (5.33 oz) | 129 g (4.55 oz) | - |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 HSDPA 850 / 1900 |
HSDPA 900 / 2100 | HSDPA 850 / 1900 / 2100 TD-SCDMA 1900 / 2100 |
| 4G Network | - | - | LTE 1800 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) |
| 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, v4.3 (Jelly Bean) | Android OS, v4.4 (KitKat) |
| Processor | Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582M | Quad-core 1.2 GHz, Qualcomm Snapdragon | Quad-core 1.5 GHz, LCI L1860C |
| GPU | Mali-400MP2 | - | Mali-T628 MP4 |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 8 GB ROM | 8 GB | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 5.0 inches | 4.7 inches |
| Resolution | 540 x 960 pixels (234 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 64.80% | 70.39% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio with Recording | - | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 8 MP, 3264 x 2448 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 Detection | Auto focus, f/2.2 Aperture, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama, BSI Sensor, Omnivision sensor |
| Video | Yes, 1080p@30fps | Yes | Yes, 1080p |
| Front Camera | Yes, VGA [Similar] | 2 MP [Similar] | 2 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v3.0 with A2DP, HS | v4.0 | v4.0, 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, hotspot |
| USB | Yes, microUSB v2.0, USB On-the-go | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 8 GB ROM, 1 GB RAM | 8 GB, 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 | Non-removable Li-Po Battery | Li-Po Battery | Li-Po Battery |
| Capacity | 3000 mAh | 2150 mAh | 2200 mAh |
| Stand by | - | Up to 444 h (2G) Up to 312 h (3G) |
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| Talk Time | Up to 10 h (2G) Up to 8 h (3G) |
Up to 19 h (2G) Up to 14 h (3G) |
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