Phone Comparison - Samsung Galaxy Ace 3 LTE vs Oppo R819 vs Asus Zenfone 4
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| Manufacturer | Samsung | Oppo | Asus |
| Announced | June 2013 | August 2013 | January 2014 |
| Status | Coming Soon - Q3 2013 | Available - September 2013 | Available - June 2014 |
| Colors | Black, White | White | Black, White, Red, Blue, Yellow |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
121.2 x 62.7 x 10 mm (4.77 x 2.47 x 0.39 in) |
136.5 x 68 x 7.3 mm (5.37 x 2.68 x 0.29 in) |
124.4 x 61.4 x 6.3-11.2 (4.9 x 2.42 x 0.25-0.44) |
| Weight | 119.5 g (4.2.0.18 oz) | 110 g (3.88 oz) | 115 g (4.06 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 2100 - SIM 1 & SIM 2 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 800 / 900 / 1800 / 2600 | - | - |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.1.2 (Jelly Bean) | Android OS, v4.2.1 (Jelly Bean) | Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) |
| Processor | Dual-core 1.2 GHz | Quad-core 1.2 GHz, MediaTek MT6589 | Dual-core 1.2 GHz, Intel Atom Z2520 |
| GPU | - | PowerVR SGX544 | PowerVR SGX544MP2 |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 8 GB (5 GB user available) | 16 GB | 8 GB |
| External Memory | microSD, up to 64 GB | No | microSD, up to 64 GB |
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| Type | TFT capacitive touchscreen | IPS LCD capacitive touchscreen | LCD Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 4.7 inches | 4.0 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 720 x 1280 pixels (312 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 60.05% | 65.81% | 59.74% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 8 MP, 3264x2448 pixels | 5 MP, 2592 x 1944 pixels |
| Flash | LED flash | LED flash | No |
| Features | Auto focus, Sound & Shot, Best Shot, Best Photo, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | Auto focus, Geo-tagging, Panorama |
| Video | Yes, 720p@30fps | Yes, 1080p | Yes, 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, 1.9 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 150 Mbps DL | HSPA+ | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v3.0 | Yes, v4.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML5 | HTML5 | HTML |
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| Internal | 8 GB (5 GB user available), 1 GB RAM | 16 GB, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | microSD, up to 64 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 | Li-Ion Battery | Li-Ion Battery | Li-Po Battery |
| Capacity | 1800 mAh | 2000 mAh | 1200/1600 mAh |
| Stand by | - | - | Up to 192 h |
| Talk Time | - | - | Up to 10 h |
