Phone Comparison - Xiaomi Redmi Note 8 Pro vs Samsung Galaxy A51 5G vs Samsung Galaxy M31s
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| Price Comparison (India) | - | - | |
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| Manufacturer | Xiaomi | Samsung | Samsung |
| Announced | August 2019 | April 2020 | Not announced yet |
| Status | Coming Soon - October 2019 | Coming Soon - April 2020 | Rumored |
| Price | Rs. 14,999 ($0.00) [Similarly Priced] | - | - |
| Colors | Gamma Green, Halo White, Shadow Black | Prism Cube Black, Prism Cube White, Prism Cube Pink | Ocean Blue, Space Black, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
161.3 × 76.4 × 8.79 mm (6.35 × 3.01 × 0.35 in) |
158.9 x 73.6 x 8.7 mm (6.26 x 2.9 x 0.34 in) |
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| Weight | 199.8 g (7.02.0.28 oz) | 187 g (6.6 oz) | - |
| SIM Type | Hybrid Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500) | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100) | LTE |
| 5G Network | - | 5G SA/NSA | - |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor |
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| OS | Android 9.0 (Pie) | Android 10.0 | Android 10 |
| User Interface | MIUI 10 | One UI 2.0 | One UI 2.0 |
| Processor | Octa core (2.05 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55), MediaTek Helio G90T | Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55), Exynos 980 (8 nm) | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) |
| GPU | Mali-G76 MP4 | Mali-G76 MP5 | Mali-G72 MP3 |
| RAM | 8 GB | 8 GB | 8 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 256 GB | microSDXC (dedicated slot) | No |
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| Type | Full HD+ LCD Capacitive Touchscreen, Corning Gorilla Glass protection | Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3 |
Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 6.53 inches | 6.5 inches | 6.5 inches |
| Resolution | 1080 x 2340 pixels (395 ppi) | 1080 x 2400 pixels (405 ppi) | 1080 x 2400 pixels (405 ppi) |
| Screen-to-Body Ratio | - | 87.17% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio, recording | FM radio | FM radio, RDS, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 64 MP + 8 MP + 2 MP + 2 MP | 48 MP + 12 MP + 5 MP + 5 MP | 64 MP + 12 MP + 5 MP + 5 MP |
| Flash | Dual-LED Flash | LED flash | LED Flash |
| Features | 64 MP, f/1.8, (wide), 1/1.7", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm 2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera) 2 MP, f/2.4, 1/5", 1.75µm, depth sensor HDR, Panorana |
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 12mm (ultrawide) 5 MP, f/2.4, 25mm (macro), 1/5.0", 1.12µm 5 MP, f/2.2, (depth) HDR, panorama |
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 12 MP, f/2.2, (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth) Panorama, HDR |
| Video | 2160p@30fps, 1080p@30/60/120fps, (gyro-EIS) | 2160p@30fps, 1080p@30/120fps; gyro-EIS | 4K@30fps, 1080p@30fps, gyro-EIS |
| Front Camera |
20 MP, f/2.0, 0.9µm HDR 1080p@30fps [Similar] |
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps [Similar] |
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps | HSPA, LTE-A, 5G | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | 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 | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | 2.0, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | Yes | Yes | Yes |
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| Internal | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 6 GB | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM (UFS 2.0) | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 256 GB | microSDXC (dedicated slot) | No |
| USB OTG | Yes | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery Fast battery charging 18W (Quick Charge 4) |
Non-removable Li-Po Battery Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 25W |
| Capacity | 4500 mAh | 4500 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 14,999 
