Phone Comparison - Samsung Galaxy A31 vs Samsung Galaxy A51 5G UW vs Samsung Galaxy M12
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | 2020, March 24 | August 2020 | 2021, February 05 |
| Status | Coming Soon - April 2020 | Available - August 2020 | Coming soon. Exp. release 2021, February |
| Colors | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White | Prism Bricks Blue | Gray, Blue, Green |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in) |
158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in) |
163.9 x 75.9 x 8.9 mm (6.45 x 2.99 x 0.35 in) |
| Weight | 185 g (6.53 oz) | 188.8 g (6.63.0.28 oz) | 221 g (7.8 oz) |
| SIM Type | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Pre-installed Nano-SIM | 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE (unspecified) | 2, 4, 5, 13, 66 | LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 |
| 5G Network | - | 260, 261 mmWave | - |
| SAR EU |
- W/kg (head) - W/kg (body) |
0.59 W/kg (head) 1.32 W/kg (body) |
- W/kg (head) - W/kg (body) |
| Messaging | |||
| Build Features | - Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor (side-mounted) |
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| OS | Android 10.0 | Android 10 | Android 10 |
| User Interface | One UI 2.0 | One UI 2.0 | One UI 2.5 |
| Processor | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) | Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver), Qualcomm SDM765 Snapdragon 765G (7 nm) | Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55), Exynos 850 (8nm) |
| GPU | Mali-G52 MC2 | Adreno 620 | Mali-G52 |
| RAM | 6 GB | 6 GB | 6 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSDXC | microSDXC (uses shared SIM slot) | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3 |
PLS IPS Display |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.4 inches | 6.5 inches | 6.5 inches |
| Resolution | 1080 x 2400 pixels (411 ppi) | 1080 x 2400 pixels (405 ppi) | 720 x 1600 pixels (270 ppi) |
| Screen-to-Body Ratio | 85.01% | 87.47% | 81.95% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | FM radio, RDS, recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 5 MP + 5 MP | 48 MP + 12 MP + 5 MP + 5 MP | 48 MP + 5 MP + 2 MP + 2 MP |
| Flash | LED flash | LED flash | LED flash |
| Features | 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 |
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.2, (depth) panorama, HDR |
48 MP, f/2.0, (wide), PDAF 5 MP, f/2.2, 123˚ (ultrawide), 1/5.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) panorama, HDR |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/120fps; gyro-EIS | 1080p@30fps |
| Front Camera |
20 MP, f/2.2, 0.8µm HDR 1080p@30fps [Similar] |
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps [Similar] |
8 MP, f/2.2, (Wide) HDR 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 | 5.0, 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 b/g/n, 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 On-The-Go | USB Type-C 2.0 |
| 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 or 64 GB, 4 GB RAM (UFS 2.1) | 128 GB, 6 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM or 32 GB, 3 GB RAM (eMMC 5.1) |
| Expandable Storage | microSDXC | microSDXC (uses shared SIM slot) | microSDXC (dedicated slot) |
| USB OTG | Supported | Supported | Not 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 15W |
Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 5000 mAh | 4500 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
