Phone Comparison - Lenovo P780 vs Lenovo A7000 vs Lenovo A3900
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| Manufacturer | Lenovo | Lenovo | Lenovo |
| Announced | June 2013 | March 2015 | April 2015 |
| Status | Available - June 2013 | Available - May 2015 | Available - April 2015 |
| Price | - | Rs. 8,400 ($123.53) [Similarly Priced] | Rs. 5,450 ($80.00) [Similarly Priced] |
| Colors | Black | Onyx Black, Pearl White | Black and Pearl White, Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143 x 73 x 10 mm (5.63 x 2.87 x 0.39 in) |
152.6x 76.2 x 7.9 mm (6.01x 3 x 0.31 in) |
142.8 x 71.8 x 8.95 mm (5.62 x 2.83 x 0.35 in) |
| Weight | 176 g (6.21 oz) | 140 g (4.94 oz) | 157 g (5.54 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE 700 / 900 / 1800 | LTE 2300 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM |
| Build Features | - | Dolby Atmos | - |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v5.0 (Lollipop) | Android OS, v4.4.4 (KitKat) |
| Processor | Quad-core 1.2 GHz Cortex-A7, MTK 6589 | Octa-core 1.5 GHz Cortex-A53, Mediatek MT6572M | Octa-core 1.2 GHz Cortex-A53, Mediatek MT6752 |
| GPU | PowerVR SGX544 | Mali-T760MP2 | Mali-T760 |
| RAM | 1 GB | 2 GB | 512 MB |
| Internal Memory | 4 GB | 8 GB | 4 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB; SD cards | microSD, up to 32 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, | TFT Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.5 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (267 ppi) | 480 x 854 pixels (196 ppi) |
| Screen-to-Body Ratio | 65.90% | - | 67.14% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | Yes |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 8 MP, 3264 x 2448 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | - |
| Video | Yes | 1080p@30fps | Yes |
| Front Camera | Yes, 1.2 MP [Similar] | 5 MP [Similar] | 2 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, HSUPA | HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v3.0 | v4.0, A2DP, EDR | v4.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, 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 |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB, 1 GB RAM | 8 GB, 2 GB RAM | 4 GB, 512 MB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB; SD cards | 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 | Li-Po Battery | Li-Po Battery | Li-Po Battery |
| Capacity | 4000 mAh | 2900 mAh | 2300 mAh |
| Stand by | Up to 840 h | Up to 264 h (2G) Up to 264 h (3G) Up to 288 h (4G) |
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| Talk Time | Up to 43 h (2G) Up to 25 h (3G) |
Up to 39 h (2G) Up to 16 h (3G) |
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