Phone Comparison - O2 XDA Zinc vs Samsung I9505 Galaxy S4 vs HTC Desire 620G Dual SIM
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| Manufacturer | O2 | Samsung | HTC |
| Announced | December 2006 | March 2013 | December 2014 |
| Status | Discontinued | Available - April 2013 | Coming Soon - December 2014 |
| Price | - | - | Rs. 6,949 ($102.19) [Similarly Priced] |
| Colors | Silver | White Frost, Black Mist | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
109 x 58 x 22.6 mm (4.29 x 2.28 x 0.89 in) |
136.6 x 69.8 x 7.9 mm (5.38 x 2.75 x 0.31 in) |
150.1 x 72.7 x 9.6 mm (5.91 x 2.86 x 0.38 in) |
| Weight | 175 g (6.17 oz) | 130 g (4.59 oz) | 160 g (5.64 oz) |
| 2G Network | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | UMTS 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 2100 |
| 4G Network | - | LTE | - |
| Messaging | SMS, MMS, EMail | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Microsoft Windows Mobile 5.0 PocketPC | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.4 (KitKat) |
| Processor | Intel XScale PXA 270 520 MHz | Quad-core 1.9 GHz Krait 300, Qualcomm APQ8064T Snapdragon 600 | Octa-core 1.7 GHz Cortex-A7, Mediatek MT6592 |
| GPU | Adreno 320 | Mali-450MP4 | |
| RAM | 64 MB | 2 GB | 1 GB |
| Internal Memory | N/A | 16/32/64 GB storage | 8 GB |
| External Memory | miniSD | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | TFT resistive touchscreen | Super AMOLED capacitive touchscreen | Capacitive touchscreen |
| Colors | 65K colors | 16M colors | 16M colors |
| Size | 2.8 inches | 4.99 inches | 5.0 inches |
| Resolution | 240 x 320 pixels (143 ppi) | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 38.33% | 72.15% | 63.04% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | FM radio |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 13 MP, 4128 x 3096 pixels, Autofocus | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Drama Shot, Eraser, Sound and Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama | |
| Video | Yes | Yes, 1080p@30fps | 1080p@30fps |
| Front Camera | VGA videocall camera [Similar] | Yes, 2 MP, Full HD 1080p@30fps [Similar] | 5 MP [Similar] |
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| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | Yes | Yes |
| Edge | No | Yes | Yes |
| 3G | Yes, 384 kbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSPA |
| Bluetooth | Yes | Yes, v4.0 with A2DP, EDR | v4.0, A2DP, apt-X |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | Yes, miniUSB | Yes, microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0 |
| GPS | No | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS |
| Browser | WAP 2.0/xHTML, HTML (PocketIE) | HTML5, Adobe Flash | HTML5 |
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| Internal | 64 MB RAM, 128 MB ROM | 16/32/64 GB storage, 2 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | miniSD | microSD, up to 64 GB | 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 | Standard battery, Li-Ion | Li-Ion Battery | Li-Po Battery |
| Capacity | 1300 mAh | 2600 mAh | 2100 mAh |
| Stand by | Up to 220 h | Up to 350 h | - |
| Talk Time | Up to 5 h | Up to 17 h | - |
