Phone Comparison - Apple iPhone 4 vs Samsung I929 Galaxy S II Duos vs Karbonn Titanium S9
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| Manufacturer | Apple | Samsung | Karbonn |
| Announced | June 2010 | December 2011 | July 2013 |
| Status | Available - June 2010 | Available - September 2012 | Available - July 2013 |
| Colors | Black, White | Black | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
129.8 x 68.9 x 9.7 mm (5.11 x 2.71 x 0.38 in) |
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| Weight | 137 g (4.83 oz) | 138 g (4.87 oz) | 176.5 g (6.21.0.18 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 | |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | iOS 4, upgradable to iOS 5 | Android OS, v2.3.5 (Gingerbread) | Android OS, v4.2 (Jelly Bean) |
| Processor | 1 GHz Cortex-A8, Apple A4 | Dual-core 1.2 GHz, Qualcomm MSM8660 Snapdragon | Quad-core 1.2 GHz Cortex-A7, MTK MT6589 |
| GPU | PowerVR SGX535 | Adreno 220 | PowerVR SGX544 |
| RAM | 512 MB | 1 GB | 1 GB |
| Internal Memory | 8/16/32 GB storage | 16 GB | 16 GB |
| External Memory | No | microSD, up to 32GB | microSD, up to 32 GB |
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| Type | LED-backlit IPS TFT, capacitive touchscreen | Super AMOLED Plus capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 4.52 inches | 5.5 inches |
| Resolution | 640 x 960 pixels (330 ppi) | 480 x 800 pixels (206 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 53.92% | 65.28% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | FM radio |
| Games | Yes + downloadable | Yes | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 x 1944 pixels | 8 MP, 3264x2448 pixels | 13 MP, 4128x3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Touch Focus, Geo-tagging, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face Detection |
| Video | Yes, 720p@30fps, LED video light, geo-tagging | Yes, 1080p@30fps | Yes, 1080p@30fps |
| Front Camera | Yes, videocalling over Wi-Fi only [Similar] | Yes, 2 MP [Similar] | Yes, 5 MP [Similar] |
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| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 10, 236.8 kbps | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | Rev. A, up to 3.1 Mbps | HSDPA, 21 Mbps; HSUPA, 11 Mbps |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, v2.0 | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML (Safari) | HTML, Adobe Flash | HTML5 |
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| Internal | 8/16/32 GB storage, 512 MB RAM | 16GB, 1 GB RAM | 16 GB, 1 GB RAM |
| Expandable Storage | No | microSD, up to 32GB | microSD, up to 32 GB |
| USB OTG | - | Supported | 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-Po | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1420 mAh | 1800 mAh | 2600 mAh |
| Stand by | Up to 300 h (2G) Up to 300 h (3G) |
- | - |
| Talk Time | Up to 14 h (2G) Up to 7 h (3G) |
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