Phone Comparison - Xiaomi Redmi Note 8 Pro vs Samsung Galaxy A51 vs Samsung Galaxy A31
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| Price Comparison (India) | - | ||
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| Manufacturer | Xiaomi | Samsung | Samsung |
| Announced | August 2019 | December 2019 | 2020, March 24 |
| Status | Coming Soon - October 2019 | Coming Soon - December 12, 2019 | Coming Soon - April 2020 |
| Price | Rs. 14,999 ($0.00) [Similarly Priced] | Rs. 23,999 ($0.00) [Similarly Priced] | - |
| Colors | Gamma Green, Halo White, Shadow Black | Prism Crush White, Black, Pink, Blue | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
161.3 × 76.4 × 8.79 mm (6.35 × 3.01 × 0.35 in) |
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in) |
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in) |
| Weight | 199.8 g (7.02.0.28 oz) | 172 g (6.07 oz) | 185 g (6.53 oz) |
| SIM Type | Hybrid Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), 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 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500) | LTE (unspecified) | LTE (unspecified) |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor(In-display) |
- Fingerprint Sensor (under display, optical) |
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| OS | Android 9.0 (Pie) | Android 9.0 (Pie) | Android 10.0 |
| User Interface | MIUI 10 | One UI | 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 (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) |
| GPU | Mali-G76 MP4 | Mali-G72 MP3 | Mali-G52 MC2 |
| RAM | 8 GB | 8 GB | 6 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 256 GB | microSD, up to 512 GB (dedicated slot) | microSDXC |
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| Type | Full HD+ LCD Capacitive Touchscreen, Corning Gorilla Glass protection | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 6.53 inches | 6.5 inches | 6.4 inches |
| Resolution | 1080 x 2340 pixels (395 ppi) | 1080 x 2340 pixels (396 ppi) | 1080 x 2400 pixels (411 ppi) |
| Screen-to-Body Ratio | - | 89.06% | 85.01% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio, recording | FM radio | - |
| 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 | 48 MP + 8 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/1.8, (wide), 1/2", 0.8µm, PDAF 12 MP, f/2.2, 13mm (ultrawide) 5 MP, f/2.2, depth sensor 5 MP, f/2.4, macro camera Panorama, HDR |
48 MP, f/2.0, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 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@30fps | 1080p@30fps |
| Front Camera |
20 MP, f/2.0, 0.9µm HDR 1080p@30fps [Similar] |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
20 MP, f/2.2, 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 | HSPA, 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, USB On-The-Go |
| 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 or 64 GB, 4 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 256 GB | microSD, up to 512 GB (dedicated slot) | microSDXC |
| 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 15W |
| Capacity | 4500 mAh | 4000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 14,999 
