Phone Comparison - Xiaomi Redmi 2 Prime vs Oppo A31 vs Xiaomi Redmi 9 Power
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| Manufacturer | Xiaomi | Oppo | Xiaomi |
| Announced | August 2015 | February 2020 | 2020, December 17 |
| Status | Available - August 2015 | Available - February 2020 | Coming soon. Exp. release 2020, December 22 |
| Price | Rs. 6,999 ($102.93) [Similarly Priced] | Rs. 11,490 ($0.00) [Similarly Priced] | Rs. 10,999 ($0.00) [Similarly Priced] |
| Colors | Black, White | Fantasy White, Mystery Black | Gray, Green, Blue, Orange |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in) |
163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in) |
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
| Weight | 133 g (4.69 oz) | 180 g (6.35 oz) | 198 g (6.98 oz) |
| SIM Type | - | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE | LTE (unspecified) | 1, 3, 5, 8, 34, 38, 39, 40, 41 |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) |
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| OS | Android OS, v4.4.4 (KitKat) | Android 9.0 (Pie) | Android 10 |
| User Interface | - | ColorOS 6.1 | MIUI 12 |
| Processor | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765V/CB Helio P35 (12nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | Adreno 306 | PowerVR GE8320 | Adreno 610 |
| RAM | 2 GB | 4 GB | 4 GB |
| Internal Memory | 16 GB (13.78 GB for Apps and Phone Storage) | 128 GB | 128 GB |
| External Memory | microSD, up to 32 GB | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen | IPS LCD Screen Corning Gorilla Glass 3 400 nits (typ) |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 4.7 inches | 6.5 inches | 6.53 inches |
| Resolution | 720 x 1280 pixels (312 ppi) | 720 x 1600 pixels (270 ppi) | 1080 x 2340 pixels (395 ppi) |
| Screen-to-Body Ratio | 67.83% | 82.39% | 83.29% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 12 MP + 2 MP + 2 MP | 48 MP + 8 MP + 2 MP |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, 1.4 µm Pixel Size, BSI Sensor, Geo-tagging, Touch Focus, Face/smile Detection, HDR | 12 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, 27mm (macro), 1/5.0", 1.75µm 2 MP, f/2.4, (depth) HDR, Panorama |
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 2 MP, 720p [Similar] | 8 MP, f/2.0, HDR, 1080p@30fps [Similar] |
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.0, A2DP, LE | 5.0, A2DP, LE | 4.2, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0, USB Host | microUSB 2.0, USB On-The-Go | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 16 GB (13.78 GB for Apps and Phone Storage), 2 GB RAM | 128 GB, 4 GB RAM | 128 GB, 4 GB RAM (UFS 2.2) or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 32 GB | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| USB OTG | Supported | Supported | 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 | Li-Po Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 18W Reverse charging 2.5W |
| Capacity | 2200 mAh | 4230 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
