Phone Comparison - Samsung Galaxy Ace Duos vs Samsung Galaxy Note 3 Neo vs Samsung Galaxy S3 Slim
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | May 2012 | January 2014 | March 2014 |
| Status | Available - June 2012 | Available - February 2014 | Available - March 2014 |
| Colors | Black | Black, White, Green | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112.7 x 61.5 x 11.5 mm (4.44 x 2.42 x 0.45 in) |
148.4 x 77.4 x 8.6 mm (5.84 x 3.05 x 0.34 in) |
133 x 66 x 9.7 mm (5.24 x 2.6 x 0.38 in) |
| Weight | 122 g (4.3 oz) | 162.5 g (5.71.0.18 oz) | 139 g (4.9 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE - SM-N7505 | - |
| Messaging | SMS, MMS | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | S Pen stylus | - |
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| OS | Android OS, v2.3 (Gingerbread) | Android OS, v4.3 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | 832 MHz | Quad-core 1.3 GHz Cortex A7 & dual-core 1.7 GHz Cortex A15, Exynos 5260 Hexa | Quad-core 1.2 GHz |
| GPU | Mali-T624 MP4 | - | |
| RAM | N/A | 2 GB | 1 GB |
| Internal Memory | 3 GB storage, 512 MB | 16 GB storage | 8 GB ROM |
| External Memory | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | Super AMOLED capacitive touchscreen | TFT Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 5.5 inches | 4.52 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 720 x 1280 pixels (267 ppi) | 540 x 960 pixels (244 ppi) |
| Screen-to-Body Ratio | 52.52% | 72.61% | 64.00% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | - | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 8 MP, 3264 x 2448 pixels | 5 MP, 2592х1944 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, Panorama, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization |
| Video | Yes | Yes, 1080p@30fps | Yes |
| Front Camera | No [Similar] | Yes, 2 MP, 1080p@30fps [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps | HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP, LE, EDR | Yes, v4.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, DLNA, Wi-Fi Direct, 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 (MHL 2), USB Host | Yes, microUSB v2.0 (MHL), USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 3GB storage, 512 MB | 16 GB storage, 2 GB RAM | 8 GB ROM, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 64 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 | Standard Li-Ion Battery |
| Capacity | 1300 mAh | 3100 mAh | 2100 mAh |
| Stand by | Up to 520 h (2G) Up to 410 h (3G) |
- | - |
| Talk Time | Up to 6 h 30 min (2G) Up to 16 h 40 min (3G) |
- | Up to 8 h |
