Phone Comparison - Nokia Lumia 635 vs Samsung Galaxy Core 2 Duos vs Samsung GALAXY S3 Neo GT-I9301I
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| Manufacturer | Nokia | Samsung | Samsung |
| Announced | April 2014 | June 2014 | June 2014 |
| Status | Available - May 2014 | Available - July 2014 | Available - June 2014 |
| Colors | Orange, Yellow, White, Black | White, Black | Black, Blue, Brown, Red, Gray, White, Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
130.3 x 68 x 9.8 mm (5.13 x 2.68 x 0.39 in) |
136.6 x 70.7 x 8.6 mm (5.38 x 2.78 x 0.34 in) |
| Weight | 134 g (4.73 oz) | 138 g (4.87 oz) | 132 g (4.66 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | - | - |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Microsoft Windows Phone 8.1 | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.2 (KitKat) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.2 GHz | Quad-core 1.4 GHz Cortex-A7, - |
| GPU | Adreno 305 | - | - |
| RAM | 512 MB | 768 MB | 1.5 GB |
| Internal Memory | 8 GB | 4 GB | 16 GB storage |
| External Memory | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 64 GB |
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| Type | IPS LCD capacitive touchscreen | TFT capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.5 inches | 4.5 inches | 4.8 inches |
| Resolution | 480 x 854 pixels (218 ppi) | 480 x 800 pixels (207 ppi) | 720 x 1280 pixels (306 ppi) |
| Screen-to-Body Ratio | 64.43% | 65.25% | 65.75% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM Radio | Stereo FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 х 1944 pixels | 5 MP, 2592 х 1944 pixels | 8 MP, 3264x2448 pixels |
| Flash | No | LED flash | LED flash |
| Features | Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection | Auto focus, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization |
| Video | Yes, 720p@30fps | Yes | Yes, 1080p@30fps |
| Front Camera | No [Similar] | Yes, VGA [Similar] | Yes, 1.9 MP, 720p@30fps [Similar] |
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| GPRS | Yes | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps |
| Edge | Yes | Yes | Class 12 |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 (MHL), USB On-the-go |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS |
| Browser | HTML5 | HTML | HTML, Adobe Flash |
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| Internal | 8 GB, 512 MB RAM | 4 GB, 768 MB RAM | 16 GB storage, 1.5 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 64 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 | Li-Ion Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1830 mAh | 2000 mAh | 2100 mAh |
| Stand by | Up to 648 h | - | - |
| Talk Time | Up to 12 h (2G) Up to 14 h (3G) |
- | Up to 14 h |
