Phone Comparison - Samsung Galaxy Grand 2 vs Lava Iris X8 vs Microsoft Lumia 640 Dual SIM
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| Manufacturer | Samsung | Lava | Microsoft |
| Announced | November 2013 | February 2015 | March 2015 |
| Status | Available - Q4 2013 | Available - February 2015 | Available - April 2015 |
| Price | - | Rs. 6,649 ($97.78) [Similarly Priced] | Rs. 8,999 ($132.34) [Similarly Priced] |
| Colors | Black, White, Pink | Black, White | Yes |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
146.8 x 75.3 x 8.9 mm (5.78 x 2.96 x 0.35 in) |
143.4x70.9x8.6 mm (5.65x2.79x0.34 in) |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
| Weight | 163 g (5.75 oz) | 160 g (5.64 oz) | 145 g (5.11 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SM-G7100 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - G7102 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - SM-G7105 | - | - |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.3 (Jelly Bean) | Android OS, v4.4.2 (KitKat), planned upgrade to v5.0 (Lollipop) | Microsoft Windows Phone 8.1 with Lumia Denim |
| Processor | Quad-core 1.2 GHz Cortex-A7 | Octa-core 1.4 GHz, Mediatek MT6592M | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | - | Mali-450MP4 | Adreno 305 |
| RAM | 1.5 GB | 2 GB | 1 GB |
| Internal Memory | 8 GB | 16 GB (12.9 GB for mass storage) | 8 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Asahi Glass | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16.7M colors | 16M colors |
| Size | 5.25 inches | 5.0 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (280 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 68.61% | - | 67.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio with Recording | 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, 3264x2448 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, BSI III Sensor, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, 1/4'' Sensor Size |
| Video | Yes, 1080p@30fps, stereo sound rec. | Yes, 1080p@30fps | 1080p@30fps |
| Front Camera | Yes, 1.9 MP, 720p [Similar] | Yes, 3 MP [Similar] | 1 MP, 720p [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 | HSPA 42.2/5.76 Mbps |
| Bluetooth | Yes, v4.0 with A2DP, LE, EDR | Yes, v4.0 with A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1.5 GB RAM | 16 GB (12.9 GB for mass storage), 2 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 128 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-Ion Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 2600 mAh | 2500 mAh | 2500 mAh |
| Stand by | - | - | Up to 840 h (2G) Up to 840 h (3G) |
| Talk Time | Up to 17 h | Up to 14 h (2G) Up to 9 h (3G) |
Up to 27 h 30 min (2G) Up to 20 h 30 min (3G) |
