Phone Comparison - Samsung Galaxy A51 vs Xiaomi Redmi Note 10 vs Xiaomi Redmi Note 9 4G
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Xiaomi | Xiaomi |
| Announced | December 2019 | 2021, March 04 | November 2020 |
| Status | Coming Soon - December 12, 2019 | Coming soon. Exp. release 2021, March 16 | Coming Soon - December 2020 |
| Price | Rs. 23,999 ($0.00) [Similarly Priced] | Rs. 11,999 ($0.00) [Similarly Priced] | - |
| Colors | Prism Crush White, Black, Pink, Blue | Shadow Black (Onyx Gray), Frost White (Pebble White), Aqua Green (Lake Green) | Gray, Green, Blue, Orange |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in) |
160.5 x 74.5 x 8.3 mm (6.32 x 2.93 x 0.33 in) |
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
| Weight | 172 g (6.07 oz) | 178.8 gram (6.28.0.28 ozram) | 198 g (6.98 oz) |
| SIM Type | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | 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 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE (unspecified) | 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 - China 1, 3, 5, 8, 40, 41 - India |
1, 3, 5, 8, 34, 38, 39, 40, 41 |
| Messaging | |||
| Build Features | - Fingerprint Sensor(In-display) |
- Fingerprint Sensor (side-mounted) IP53, dust and splash protection (market/region dependent) |
- Fingerprint Sensor |
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| OS | Android 9.0 (Pie) | Android 11 | Android 10 |
| User Interface | One UI | MIUI 12 | MIUI 12 |
| Processor | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) | Octa-core (2x2.2 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver), Qualcomm SDM678 Snapdragon 678 (11 nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | Mali-G72 MP3 | Adreno 612 | Adreno 610 |
| RAM | 8 GB | 6 GB | 8 GB |
| Internal Memory | 128 GB | 128 GB | 256 GB |
| External Memory | microSD, up to 512 GB (dedicated slot) | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | FHD+ Super AMOLED Screen 450 nits (typ), 1100 nits (peak) Corning Gorilla Glass 3 |
IPS LCD Screen Corning Gorilla Glass 3 400 nits (typ) |
| Colors | 16M colors | 16M Colour | 16M Colour |
| Size | 6.5 inches | 6.43 inches | 6.53 inches |
| Resolution | 1080 x 2340 pixels (396 ppi) | 1080 x 2400 pixels (409 ppi) | 1080 x 2340 pixels (395 ppi) |
| Screen-to-Body Ratio | 89.06% | 83.60% | 83.29% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 12 MP + 5 MP + 5 MP | 48 MP + 8 MP + 2 MP + 2 MP | 48 MP + 8 MP + 2 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | 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/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 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 | 2160p@30fps, 1080p@30fps | 4K@30fps, 1080p@30/60/120fps, 720p@960fps | 1080p@30fps |
| Front Camera |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
13 MP, f/2.5, (wide), 1/3.06", 1.12µm 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-A | HSPA 42.2/5.76 Mbps, LTE-A, 5G | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | 4.2, A2DP |
| 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, USB On-The-Go | 2.0, Type-C 1.0 reversible connector | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, 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, 4 GB RAM | 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 4 GB RAM UFS 2.2 | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 512 GB (dedicated slot) | 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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| 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 15W |
Non-removable Li-Po Battery Fast battery charging 33W, 67% in 30 min, 100% in 74 min (advertised) |
Non-removable Li-Po Battery Fast battery charging 18W Reverse charging 2.5W |
| Capacity | 4000 mAh | 5000 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 25,250 
