Phone Comparison - Samsung Galaxy Ace vs Lenovo S650 Vibe vs Lenovo S939
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| Manufacturer | Samsung | Lenovo | Lenovo |
| Announced | January 2011 | December 2013 | February 2014 |
| Status | Available - February 2011 | Available - December 2013 | Available - February 2014 |
| Colors | Black, Hugo Boss Edition | Silver | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112.4 x 59.9 x 11.5 mm (4.43 x 2.36 x 0.45 in) |
138 x 69.8 x 8.8 mm (5.43 x 2.75 x 0.35 in) |
170 x 86.5 x 8.65 mm (6.69 x 3.41 x 0.34 in) |
| Weight | 113 g (3.99 oz) | 126 g (4.44 oz) | 180 g (6.35 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 2100 |
| Messaging | SMS, MMS | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.2 (Froyo), upgradable to v2.3 | Android OS, v4.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) |
| Processor | 800 MHz ARM 11 processor, Qualcomm MSM7227 chipset | Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582 | Octa-core 1.7 GHz, Mediatek MT6592 |
| GPU | Adreno 200 | Mali-400MP2 | Mali-450MP4 |
| RAM | N/A | 1 GB | 1 GB |
| Internal Memory | 158 MB storage | 8 GB | 8 GB ROM |
| External Memory | microSD, up to 32GB, 2GB included, 280MB RAM | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | Capacitive touchscreen | IPS LCD Capacitive Touchscreen, OGS |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 4.7 inches | 6.0 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 540 x 960 pixels (234 ppi) | 720 x 1280 pixels (245 ppi) |
| Screen-to-Body Ratio | 54.06% | 63.41% | 67.36% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | FM Radio with Recording |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 8 MP, 3264 x 2448 pixels | 8 MP, 3264x2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, 360 degree Panorama, HDR, Image Stabilization |
| Video | Yes, QVGA@15fps | Yes | Yes, 1080p@30fps |
| Front Camera | No [Similar] | Yes, VGA [Similar] | Yes, 1.6 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps | HSDPA, HSUPA | HSDPA, 42.2 Mbps, HSUPA, 11.5 Mbps |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML | HTML5 |
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| Internal | 158 MB storage | 8 GB, 1 GB RAM | 8 GB ROM, 1 GB RAM |
| Expandable Storage | microSD, up to 32GB, 2GB included, 280MB RAM | microSD, up to 32 GB | microSD, up to 32 GB |
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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 | 1350 mAh | 2000 mAh | 3000 mAh |
| Stand by | Up to 640 h (2G) Up to 420 h (3G) |
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| Talk Time | Up to 11 h (2G) Up to 6 h 30 min (3G) |
Up to 12 h (2G) Up to 8 h (3G) |
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