Phone Comparison - Nokia 603 vs Lenovo S820 vs Samsung Galaxy Core 2 Duos
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| Manufacturer | Nokia | Lenovo | Samsung |
| Announced | October 2011 | May 2013 | June 2014 |
| Status | Available - October 2011 | Available - May 2013 | Available - July 2014 |
| Colors | Black, white (front panel)/ black, white, fuchsia, green, yellow | Flamingo red | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
113.5 x 57.1 x 12.7 mm, 74 cc (4.47 x 2.25 x 0.5 in, 2.91 cc) |
139.5 x 69.7 x 9 mm (5.49 x 2.74 x 0.35 in) |
130.3 x 68 x 9.8 mm (5.13 x 2.68 x 0.39 in) |
| Weight | 109.6 g (3.84.0.21 oz) | 143 g (5.04 oz) | 138 g (4.87 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 900 / 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Symbian Belle OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) |
| Processor | 1 GHz | Quad-core 1.2 GHz, MTK 6589W | Quad-core 1.2 GHz |
| GPU | 2D/3D graphics HW accelerator with OpenVG1.1 and OpenGL ES 2.0 | PowerVR SGX544 | - |
| RAM | 512 MB | 1 GB | 768 MB |
| Internal Memory | 2 GB (340 MB user available) | 4 GB | 4 GB |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 4.7 inches | 4.5 inches |
| Resolution | 360 x 640 pixels (210 ppi) | 720 x 1280 pixels (312 ppi) | 480 x 800 pixels (207 ppi) |
| Screen-to-Body Ratio | 52.01% | 62.82% | 65.25% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS, musi | FM radio; built-in antenna | FM Radio |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 12 MP, 4000 x 3000 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | fixed focus | LED flash | LED flash |
| Features | Geo-tagging, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection |
| Video | Yes, 720p@30fps | Yes | Yes |
| Front Camera | No [Similar] | Yes, 2 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Class 33 | Yes | Yes |
| Edge | Class 33 | Yes | Yes |
| 3G | HSDPA 14.4 Mbps, HSUPA 5.76 Mbps | HSDPA, HSUPA | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual band | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0, HS, USB On-the-go support | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | WAP 2.0/xHTML, HTML, Adobe Flash Lite | HTML | HTML |
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| Internal | 2 GB (340 MB user available), 512 MB RAM, 1 GB ROM | 4 GB, 1 GB RAM | 4 GB, 768 MB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 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 | Standard battery, Li-Ion | Li-Po Battery | Li-Ion Battery |
| Capacity | (BP-3L) | 2000 mAh | 2000 mAh |
| Stand by | Up to 460 h (2G) Up to 490 h (3G) |
Up to 140 h (2G) Up to 140 h (3G) |
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| Talk Time | Up 16 h (2G) Up to 7 h (3G) |
Up to 22 h (2G) Up to 10 h (3G) |
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