Phone Comparison - Samsung Galaxy A31 vs Samsung Galaxy A51 5G UW vs Samsung Galaxy A42 5G
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | 2020, March 24 | August 2020 | 2020, September 02 |
| Status | Coming Soon - April 2020 | Available - August 2020 | Available. Released 2020, November 11 |
| Colors | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White | Prism Bricks Blue | Prism Dot Black, Prism Dot White, Prism Dot Gray |
| 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) |
164.4 x 75.9 x 8.6 mm (6.47 x 2.99 x 0.34 in) |
| Weight | 185 g (6.53 oz) | 188.8 g (6.63.0.28 oz) | 193 g (6.81 oz) |
| SIM Type | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Pre-installed Nano-SIM | Single SIM (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 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE (unspecified) | 2, 4, 5, 13, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41 - Europe 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 34, 38, 39, 40, 41 |
| 5G Network | - | 260, 261 mmWave | 1, 3, 5, 7, 8, 28, 40, 41, 78 SA/NSA/Sub6 - Europe 1, 3, 5, 7, 8, 28, 40, 41, 78, 79 SA/NSA/Sub6 |
| 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 (under display, optical) |
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| OS | Android 10.0 | Android 10 | Android 10, upgradable to Android 11, One UI 3.1 |
| User Interface | One UI 2.0 | One UI 2.0 | One UI 2.1 |
| 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 (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570), Qualcomm SM7225 Snapdragon 750 5G (8 nm) |
| GPU | Mali-G52 MC2 | Adreno 620 | Adreno 619 |
| RAM | 6 GB | 6 GB | 8 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSDXC | microSDXC (uses shared SIM slot) | microSDXC |
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| Type | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3 |
HD+ Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.4 inches | 6.5 inches | 6.6 inches |
| Resolution | 1080 x 2400 pixels (411 ppi) | 1080 x 2400 pixels (405 ppi) | 720 x 1600 pixels (266 ppi) |
| Screen-to-Body Ratio | 85.01% | 87.47% | 84.18% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | FM radio, RDS, recording | Unspecified |
| 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 + 8 MP + 5 MP + 5 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, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (depth) 5 MP, f/2.4, (macro) Panorama, HDR |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/120fps; gyro-EIS | 4K@30fps, 1080p@30fps, 720p@480fps |
| 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] |
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, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A, 5G | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| 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, USB On-The-Go | 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, 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, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM UFS 2.1 |
| Expandable Storage | microSDXC | microSDXC (uses shared SIM slot) | microSDXC |
| 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 15W |
Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 5000 mAh | 4500 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
