Phone Comparison - Samsung Star 3 Duos S5222 vs Karbonn Titanium S4 vs Micromax Unite 2 A106
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| Manufacturer | Samsung | Karbonn | Micromax |
| Announced | January 2012 | December 2013 | May 2014 |
| Status | Available - February 2012 | Available - January 2014 | Available - May 2014 |
| Colors | Black, White | Black, White | Pristine White, Balmy Green, Mystic Grey, Raging Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
102 x 58 x 11.5 mm (4.02 x 2.28 x 0.45 in) |
135 x 59 x 7.9 mm (5.31 x 2.32 x 0.31 in) |
138.9 x 71.9 x 9.4 mm (5.47 x 2.83 x 0.37 in) |
| Weight | 95 g (3.35 oz) | - | 158.5 g (5.57.0.18 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 GSM 850 / 900 / 1800 / 1900 - SIM 2 |
GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 - SIM 1 only | HSDPA 2100 | |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) | |
| Processor | Quad-core 1.2 GHz Cortex-A7 | Quad-core 1.3 GHz, Mediatek MT6582M | |
| GPU | - | Mali-400MP2 | |
| RAM | N/A | 1 GB | 1 GB |
| Internal Memory | 20 MB | 4 GB ROM | 4/8 GB (0.89 GB for apps, 1.67 GB for mass storage) |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT touchscreen | AMOLED Capacitive Touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 256K colors | 16M colors | 16.7M colors |
| Size | 3.0 inches | 4.7 inches | 4.7 inches |
| Resolution | 240 x 320 pixels (133 ppi) | 720 x 1280 pixels (312 ppi) | 480 x 800 pixels (199 ppi) |
| Screen-to-Body Ratio | 47.35% | 76.69% | 62.64% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | - | FM Radio with Recording |
| Games | Yes + downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048x1536 pixels | 13 MP, 4128x3096 pixels | 5 MP, 2592x1944 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | |
| Video | Yes, QCIF@15fps | Yes, 1080p@30fps | Yes, 1080p |
| Front Camera | No [Similar] | Yes, 2 MP, 720p [Similar] | Yes, 2 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | No | HSDPA, 21 Mbps; HSUPA, 11 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 b/g/n | 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, USB On-the-go | Yes, microUSB v2.0, USB On-the-go |
| GPS | No | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | WAP 2.0/xHTML, HTML | HTML5 | HTML5 |
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| Phonebook | Yes, Photocall | Practically unlimited entries and fields, Photocall | Practically unlimited entries and fields, Photocall |
| Call Records | Yes | Practically unlimited | Practically unlimited |
| Internal | 20 MB | 4 GB ROM, 1 GB RAM | 4/8 GB (0.89 GB for apps, 1.67 GB for mass storage), 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | 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-Ion | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1000 mAh | 1800 mAh | 2000 mAh |
| Stand by | Up to 520 h | - | Up to 190 h |
| Talk Time | Up to 14 h 20 min | - | Up to 8 h |
