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Brief information about compared phones: Xiaomi Mi 4 LTE , Xiaomi Redmi 4aXiaomi Mi 4 LTE 2014 year of release, cpu Quad-core 2.5 GHz Krait 400, screen 5", with resolution 1080x1920. Smartphone has 8 megapixel front camera and 13 megapixel main camera. Xiaomi Redmi 4a 2016 year of release, cpu Quad-core 1.4 GHz Cortex-A53, screen 5", 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 | 5" inch | 5" inch | ||
| Screen area | 68.9 cm2 | 68.0 cm2 | ||
| Screen format | 16:9 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 72.3% | 69.0% | ||
| Screen resolution | 1080 x 1920 px | 720 x 1280 px | ||
| PPI /points per inch/ | 441 PPI | 296 PPI | ||
| Camera and Video | Rear camera, main | 13 MP, Single | 13 MP, Single | |
| Camera specs | 13 MP, f/1.8, 1/3'', 1.12µm, AF | 13 MP, AF, f/2.2 | ||
| Functions | LED flash, panorama, HDR | LED flash, HDR, panorama | ||
| Video | 1080p@30fps | 1080p@30fps | ||
| Front camera, selfie | 8 MP, Single | 5 MP, Single | ||
| Specifications | 8 MP, f/1.8 | 5 MP, f/2.2 | ||
| Performance | Operating system OS | Android 4.4.3 (KitKat); MIUI 5 | Android 6.0.1 (Marshmallow); MIUI 10 | |
| Chipset | Qualcomm MSM8974AC Snapdragon 801 (28 nm) | Qualcomm MSM8917 Snapdragon 425 (28 nm) | ||
| Processor CPU | Quad-core 2.5 GHz Krait 400 | Quad-core 1.4 GHz Cortex-A53 | ||
| Graphics processor GPU | Adreno 330 | Adreno 308 | ||
| External memory | No | microSD, up to 256 GB (uses SIM 2 slot) | ||
| Internal memory | 16 GB, 3 GB RAM | 16/32 GB, 2 GB RAM | ||
| Antutu 7 score | 43152 | |||
| GeekBench 4 Single Core | 1984 | 664 | ||
| GeekBench 4 Multi-Core | 7304 | 1740 | ||
| GeekBench 4 RenderScript | 1350 | |||
| GeekBench 5 Single Core | 123 | |||
| GeekBench 5 Multi-Core | 396 | |||
| General specs | Release date | 2014, December | 2016, November | |
| Dimensions (HxWxD) | 139.2 Х 68.5 Х 8.9 mm | 139.9 Х 70.4 Х 8.5 mm | ||
| Weight | 149 g | 131.5 g | ||
| Colors | White | Gold, Rose Gold, Dark Gray | ||
| Battery | 3080 mAh, Non-removable Li-Ion | 3120 mAh, Non-removable Li-Ion | ||
| Approximate price | 230 EUR | 110 EUR | ||
| Body build | plastic body | |||
| Communication and Connectivity | SIM card | Micro-SIM | Hybrid Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE - international model | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 20(800), 38(2600), 40(2300) | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | ||
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS | ||
| NFC | ||||
| USB | microUSB 2.0, USB Host | microUSB 2.0 | ||
| Bluetooth | 4.0, A2DP | 4.1, A2DP, LE | ||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | Active noise cancellation with dedicated mic | Active noise cancellation with dedicated mic | ||
| Other features | Dop | Sensors Accelerometer, gyro, proximity, compass, barometer, Infrared port - Fast battery charging (Quick Charge 2.0) | Sensors Accelerometer, gyro, proximity, Infrared port | |
