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Brief information about compared phones: Acer Liquid E2 , Oppo A39Acer Liquid E2 2013 year of release. cpu Quad-core 1.2 GHz Cortex-A7. screen 4.5". with resolution 540x960. Smartphone has 2 megapixel front camera and 8 megapixel main camera . Oppo A39 2017 year of release. cpu Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53). screen 5.2". with resolution 720x1280. Smartphone has 5 megapixel front camera and 13 megapixel main camera . |
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| Display | Technology | IPS LCD | IPS LCD | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 4.5" inch | 5.2" inch | ||
| Screen area | 55.8 cm2 | 74.5 cm2 | ||
| Screen format | 16:9 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 62.7% | 68.6% | ||
| Screen resolution | 540 x 960 px | 720 x 1280 px | ||
| PPI /points per inch/ | 245 PPI | 282 PPI | ||
| Screen protection | Corning Gorilla Glass 4 | |||
| Camera and Video | Rear camera, main | 8 MP, Single | 13 MP, Single | |
| Camera specs | 8 MP, AF | 13 MP, f/2.2, 1/3'', AF | ||
| Functions | Dual-LED flash | LED flash, panorama, HDR | ||
| Video | 1080p@30fps | 1080p@30fps | ||
| Front camera, selfie | 2 MP, Single | 5 MP, Single | ||
| Specifications | 2 MP | 5 MP, f/2.4, 1/4'', 1.4µm | ||
| Performance | Operating system OS | Android 4.2.1 (Jelly Bean) | Android 5.1 (Lollipop); ColorOS 3 | |
| Chipset | Mediatek MT6589 (28 nm) | Mediatek MT6750 (28 nm) | ||
| Processor CPU | Quad-core 1.2 GHz Cortex-A7 | Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) | ||
| Graphics processor GPU | PowerVR SGX544 | Mali-T860MP2 | ||
| External memory | microSD, up to 32 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) | ||
| Internal memory | 4 GB, 1 GB RAM | 32 GB, 3 GB RAM | ||
| Antutu 7 score | 14005 | |||
| GeekBench 4 Single Core | 2870 mAh | 639 | ||
| GeekBench 4 Multi-Core | 1036 | 2481 | ||
| GeekBench 4 RenderScript | 1870 | |||
| General specs | Release date | 2013, April | 2017, March | |
| Dimensions (HxWxD) | 131 Х 68 Х 9.9 mm | 149.1 Х 72.9 Х 7.7 mm | ||
| Weight | 140 g | 147 g | ||
| Colors | Black, White | Gold, Rose Gold | ||
| Battery | 2000 mAh, Removable Li-Ion | 2900 mAh, Non-removable Li-Ion | ||
| Approximate price | 180 EUR | 150 EUR | ||
| Battery life | Stand by time- Up to 450 h Talking time- Up to 9 h | |||
| Body build | aluminum body, plastic ends | |||
| Communication and Connectivity | SIM card | Single SIM (Micro-SIM)Dual SIM (Micro-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)-3G - HSDPA-4G - LTE | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500) LTE band 1(2100), 20(800), 28(700), 39(1900), 41(2500) | ||
| Speed | HSPA 42.2/5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | ||
| GPS | Yes, with A-GPS | Yes, with A-GPS | ||
| NFC | Super AMOLED | |||
| USB | microUSB 2.0 | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 3.0, A2DP, EDR | 4.0, A2DP | ||
| Harmful irradiation | SAR EU - 0.23 W/kg (head) | |||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | DTS sound -Active noise cancellation with dedicated mic | |||
| Other features | Dop | Sensors Accelerometer, gyro, proximity, compass - Also known as Acer Liquid E2 Duo with dual-SIM card slots | Sensors Accelerometer, proximity, compass | |
