Phone Comparison - Samsung Galaxy Ace 2 vs Samsung Galaxy S5 mini vs Samsung Galaxy Alpha
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | February 2012 | June 2014 | August 2014 |
| Status | Available - May 2012 | Available - July 2014 | Available - September 2014 |
| Colors | Black | Charcoal Black, Shimmery White, Electric Blue and Copper Gold | Black, white, gold, silver, blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
131.1 x 64.8 x 9.1 mm (5.16 x 2.55 x 0.36 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
| Weight | 122 g (4.3 oz) | 120 g (4.23 oz) | 115 g (4.06 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 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | - Fingerprint Sensor (PayPal Certified) - IP67 Certified - Dust and Water Resistant - Water Resistant up to 1 Meter and 30 Minutes |
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| OS | Android OS, v2.3 | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.4 (KitKat) |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Quad-core 1.4 GHz | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 |
| GPU | Mali-400MP | - | Mali-T628 MP6 |
| RAM | 768 MB | 1.5 GB | 2 GB |
| Internal Memory | 4 GB storage | 16 GB | 32 GB |
| External Memory | microSD, up to 32GB | microSD, up to 64 GB | No |
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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 | 4.5 inches | 4.7 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 720 x 1280 pixels (326 ppi) | 720 x 1280 pixels (320 ppi) |
| Screen-to-Body Ratio | 55.64% | 65.86% | 66.95% |
| 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 | 8 MP, 3264 x 2448 pixels | 12 MP, 4128 x 3096 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, Panorama | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR |
| Video | Yes, 720p@30fps | Yes, 1080p@30fps | 2160p@30fps |
| Front Camera | Yes, VGA [Similar] | 2.1 MP, 1080p@30fps [Similar] | 2.1 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 14.4 Mbps | HSDPA, 42 Mbps (LTE model); HSDPA, 21.1 Mbps (3G model); HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP, LE, EDR | 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, dual-band, 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 |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 16 GB, 1.5 GB RAM | 32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 64 GB | No |
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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 | Li-Ion Battery |
| Capacity | 1500 mAh | 2100 mAh | 1860 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
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| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
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