Phone Comparison - Samsung Galaxy A31 vs Xiaomi Redmi 9 Power vs vivo V20 2021
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Xiaomi | vivo |
| Announced | 2020, March 24 | 2020, December 17 | 2020, December 24 |
| Status | Coming Soon - April 2020 | Coming soon. Exp. release 2020, December 22 | Available. Released 2020, December 24 |
| Price | - | Rs. 10,999 ($0.00) [Similarly Priced] | Rs. 24,990 ($0.00) [Similarly Priced] |
| Colors | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White | Gray, Green, Blue, Orange | Sunset Melody, Midnight Jazz |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in) |
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
161.3 x 74.2 x 7.4 mm (6.35 x 2.92 x 0.29 in) |
| Weight | 185 g (6.53 oz) | 198 g (6.98 oz) | 171 g (6.03 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 CDMA 800 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE (unspecified) | 1, 3, 5, 8, 34, 38, 39, 40, 41 | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | |||
| Build Features | - Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor (side-mounted) |
- Fingerprint Sensor |
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| OS | Android 10.0 | Android 10 | Android 101 |
| User Interface | One UI 2.0 | MIUI 12 | Funtouch 11 |
| Processor | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) | Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver), Qualcomm SDM730 Snapdragon 730 (8 nm) |
| GPU | Mali-G52 MC2 | Adreno 610 | Adreno 618 |
| RAM | 6 GB | 4 GB | 8 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSDXC | microSDXC (dedicated slot) | Unspecified |
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| Type | Super AMOLED Capacitive Touchscreen | IPS LCD Screen Corning Gorilla Glass 3 400 nits (typ) |
AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M Colour | 16M Colour |
| Size | 6.4 inches | 6.53 inches | 6.44 inches |
| Resolution | 1080 x 2400 pixels (411 ppi) | 1080 x 2340 pixels (395 ppi) | 1080 x 2400 pixels (409 ppi) |
| Screen-to-Body Ratio | 85.01% | 83.29% | 83.53% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | FM radio | 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 + 8 MP + 2 MP | 64 MP + 8 MP + 2 MP |
| Flash | LED flash | LED Flash | Dual-LED Dual-tone 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/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 |
64 MP, f/1.9, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 4K@30fps, 1080p@30/60fps, gyro-EIS |
| Front Camera |
20 MP, f/2.2, 0.8µm HDR 1080p@30fps [Similar] |
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm 1080p@30fps [Similar] |
44 MP, f/2.0, (wide) HDR 4K@30fps, 1080p@30fps, gyro-EIS [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 | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| Bluetooth | 5.0, A2DP, LE | 4.2, A2DP | 5.1, 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 | USB Type-C 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, 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, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) | 128 GB, 4 GB RAM (UFS 2.2) or 64 GB, 4 GB RAM (UFS 2.1) | 128 GB, 8 GB RAM UFS 2.1 |
| Expandable Storage | microSDXC | microSDXC (dedicated slot) | Unspecified |
| 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 18W Reverse charging 2.5W |
Non-removable Li-Po Battery Fast battery charging 33W |
| Capacity | 5000 mAh | 6000 mAh | 4000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 24,990 
