Phone Comparison - Samsung I9100 Galaxy S II vs Karbonn A99 vs Nokia Lumia 630 Dual SIM
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| Manufacturer | Samsung | Karbonn | Nokia |
| Announced | February 2011 | October 2013 | April 2014 |
| Status | Available - April 2011 | Available - October 2013 | Available - May 2014 |
| Colors | Black, White, Pink | White, Black | Green, yellow, white, black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in) |
- |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
| Weight | 116 g (4.09 oz) | - | 134 g (4.73 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v4.2.2 (Jelly Bean) | Microsoft Windows Phone 8.1 |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | Dual-core 1.3 GHz, MTK 6572 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Mali-400MP | Mali-400MP | - |
| RAM | 1 GB | 512 MB | 512 MB |
| Internal Memory | 16 GB/32 GB storage | 4 GB | 8 GB ROM |
| External Memory | microSD, up to 32GB, 8 GB included | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | Super AMOLED Plus capacitive touchscreen | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 3.97 inches | 4.5 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (235 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | 63.52% | - | 64.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | 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, 2592х1944 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED Flash | No |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | - | Auto focus, 1/4' Sensor Size, Geo-tagging, Panorama |
| Video | Yes, 1080p@30fps | Yes, 720p | Yes, 720p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes [Similar] | No [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0+HS | Yes, v2.0 A2DP, EDR | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML | HTML5 |
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| Internal | 16GB/32GB storage, 1 GB RAM | 4 GB ROM, 512 MB RAM | 8 GB ROM, 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | microSD, up to 32 GB | microSD, up to 128 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 | Standard battery, Li-Ion | Li-Ion Battery | Li-Ion Battery (BL-5H) |
| Capacity | 1650 mAh | 1400 mAh | 1830 mAh |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
- | Up to 648 h |
| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
- | Up to 16 h 24 min (2G) Up to 13 h 6 min (3G) |
