Phone Comparison - Samsung Galaxy M51 vs Xiaomi Redmi Note 9S vs Xiaomi Redmi Note 9 Pro (Global Version)
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| Manufacturer | Samsung | Xiaomi | Xiaomi |
| Announced | 2020, August 31 | March 2020 | April 2020 |
| Status | Coming soon. Exp. release 2020, September 11 | Coming Soon - April 2020 | Coming Soon - May 2020 |
| Colors | Blue; other colors | Aurora Blue, Glacier White, Interstellar Gray | Tropical Green, Glacier White, Interstellar Gray |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
162.6 x 77.5 x 8.5 mm (6.4 x 3.05 x 0.33 in) |
165.8 x 76.7 x 8.8 mm (6.53 x 3.02 x 0.35 in) |
165.8 x 76.7 x 8.8 mm (6.53 x 3.02 x 0.35 in) |
| Weight | - | 209 g (7.37 oz) | 209 g (7.37 oz) |
| SIM Type | 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300) | 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 |
| Messaging | |||
| Build Features | - Fingerprint Sensor (side-mounted) |
- Fingerprint Sensor (side-mounted) Splash-proof |
- Fingerprint Sensor (side-mounted) |
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| OS | Android 10.0 | Android 10.0 | Android 10 |
| User Interface | One UI 2.0 | MIUI 11 | MIUI 11 |
| Processor | Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver), Qualcomm SDM730 Snapdragon 730 (8 nm) | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) |
| GPU | Adreno 618 | Adreno 618 | Adreno 618 |
| RAM | 6 GB | 6 GB | 6 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSDXC | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | FHD+ IPS LCD Capacitive Touchscreen Corning Gorilla Glass 3 |
FHD+ IPS LCD Capacitive Touchscreen Corning Gorilla Glass 5 450 nits typ. brightness (advertised) |
IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 6.5 inches | 6.67 inches | 6.67 inches |
| Resolution | 1080 x 2340 pixels (396 ppi) | 1080 x 2400 pixels (395 ppi) | 1080 x 2400 pixels (395 ppi) |
| Screen-to-Body Ratio | 82.51% | 84.28% | 84.28% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio, recording | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 64 MP + 12 MP + 5 MP + 5 MP | 48 MP + 8 MP + 5 MP + 2 MP | 64 MP + 8 MP + 5 MP + 2 MP |
| Flash | LED Flash | LED flash | LED flash |
| Features | 64 MP, f/2.0, 26mm (wide), 1/1.72", 0.8µm, PDAF 12 MP, f/2.2, (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.2, (depth) Panorama, HDR |
48 MP, f/1.8, 26mm (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), 1.12µm 2 MP, f/2.4, (depth) HDR, Panorama |
64 MP, f/1.9, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 119° (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (macro), 1/5.0", 1.12µm, AF 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 4K@30fps, 1080p@30fps | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps |
| Front Camera |
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps [Similar] |
16 MP Punch-Hole, f/2.5, 26mm (wide), 1/3.1", 1.0µm HDR 1080p@30fps [Similar] |
16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm 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 (2CA) Cat6 400/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A | 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 | 2.0, Type-C 1.0 reversible connector |
| 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, 6 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | microSDXC | 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 25W |
Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Fast battery charging 30W |
| Capacity | 7000 mAh | 5020 mAh | 5020 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
