Phone Comparison - Samsung Galaxy Ace 2 vs Samsung Galaxy Alpha vs Samsung Galaxy S5 LTE-A G901F
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | February 2012 | August 2014 | August 2014 |
| Status | Available - May 2012 | Available - September 2014 | Available - August 2014 |
| Colors | Black | Black, white, gold, silver, blue | Charcoal Black, Shimmering White, Electric Blue, Copper Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
142 x 72.5 x 8.1 mm (5.59 x 2.85 x 0.32 in) |
| Weight | 122 g (4.3 oz) | 115 g (4.06 oz) | 145 g (5.11 oz) |
| 2G Network | 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 | LTE 800 / 850 / 900 / 1800 / 1900 / 2100 / 2600 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.3 | Android OS, v4.4.4 (KitKat) | Android OS, v4.4.2 (KitKat) |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 | Quad-core 2.5 GHz Krait 450, Qualcomm Snapdragon 805 |
| GPU | Mali-400MP | Mali-T628 MP6 | Adreno 420 |
| RAM | 768 MB | 2 GB | 2 GB |
| Internal Memory | 4 GB storage | 32 GB | 16/32 GB |
| External Memory | microSD, up to 32GB | No | microSD, up to 128 GB |
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| Type | PLS TFT capacitive touchscreen | Super AMOLED capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.7 inches | 5.1 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 720 x 1280 pixels (320 ppi) | 1080 x 1920 pixels (432 ppi) |
| Screen-to-Body Ratio | 55.64% | 66.95% | 69.63% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | No | - |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 12 MP, 4128 x 3096 pixels | 16 MP, 5312 x 2988 pixels |
| Flash | LED flash | LED flash | phase detection auto |
| Features | Auto focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR | 1/2.6'' sensor size, 1.12 µm Pixel Size, Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR |
| Video | Yes, 720p@30fps | 2160p@30fps | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. |
| Front Camera | Yes, VGA [Similar] | 2.1 MP [Similar] | 2 MP, 1080p@30fps, dual video call [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 14.4 Mbps | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL | HSDPA, 42.2 Mbps; HSUPA; LTE-A, Cat6, 300 Mbps DL |
| Bluetooth | Yes, v3.0 with A2DP | v4.0, A2DP, EDR, LE | v4.0, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | microUSB v2.0 | microUSB v3.0 (MHL 2.1), USB On-the-go, USB Host |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 32 GB, 2 GB RAM | 16/32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32GB | No | microSD, up to 128 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 | - |
| Capacity | 1500 mAh | 1860 mAh | - |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
- | - |
| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
- | - |
