Phone Comparison - Lenovo S820 vs Micromax Canvas Knight Cameo A290 vs Micromax Canvas Selfie A255
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| Manufacturer | Lenovo | Micromax | Micromax |
| Announced | May 2013 | August 2014 | December 2014 |
| Status | Available - May 2013 | Available - August 2014 | Available - December 2014 |
| Price | - | - | Rs. 6,999 ($102.93) [Similarly Priced] |
| Colors | Flamingo red | Pure Black, Black and Gold, White and Gold | Pristine White, Mesmerising Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
139.5 x 69.7 x 9 mm (5.49 x 2.74 x 0.35 in) |
- | - |
| Weight | 143 g (5.04 oz) | 146 g (5.15 oz) | - |
| 2G Network | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.2 (KitKat) |
| Processor | Quad-core 1.2 GHz, MTK 6589W | Octa-core 1.4 GHz, Mediatek MT6592M | Octa-core 1.7 GHz, Mediatek MT6592 |
| GPU | PowerVR SGX544 | Mali-450MP4 | Mali-450MP4 |
| RAM | 1 GB | 1 GB | 2 GB |
| Internal Memory | 4 GB | 8 GB (5.64 GB for mass storage) | 16 GB ROM |
| 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, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16.7M colors | 16M colors |
| Size | 4.7 inches | 4.7 inches | 4.7 inches |
| Resolution | 720 x 1280 pixels (312 ppi) | 720 x 1280 pixels (312 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 62.82% | - | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio; built-in antenna | FM Radio with Recording | FM Radio with Recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 12 MP, 4000 x 3000 pixels | 8 MP, 3264x2448 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | Dual-LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Cinemagraph, Object Eraser | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Sony Sensor |
| Video | Yes | Yes, 1080p@30fps | Yes, 1080p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, 5 MP, 720p [Similar] | Yes, 13 MP, LED Flash, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, HSUPA | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual band | 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, with A-GPS support |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB, 1 GB RAM | 8 GB (5.64 GB for mass storage), 1 GB RAM | 16 GB ROM, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | 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 | Li-Po Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 2000 mAh | 2000 mAh | 2300 mAh |
| Stand by | Up to 140 h (2G) Up to 140 h (3G) |
Up to 180 h | Up to 198 h |
| Talk Time | Up to 22 h (2G) Up to 10 h (3G) |
Up to 7 h | Up to 8 h 30 min |
