Phone Comparison - Xiaomi Mi A3 vs Samsung Galaxy A31 vs Xiaomi Redmi 9 Prime
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| Price Comparison (India) | - | - | |
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| Manufacturer | Xiaomi | Samsung | Xiaomi |
| Announced | July 2019 | 2020, March 24 | August 2020 |
| Status | Coming Soon - July 2019 | Coming Soon - April 2020 | Coming Soon - August 2020 |
| Price | Rs. 12,999 ($0.00) [Similarly Priced] | - | Rs. 9,999 ($0.00) [Similarly Priced] |
| Colors | Black, Blue, White | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White | Space Blue, Mint Green, Matte Black, Sunrise Flare |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
153.5 x 71.9 x 8.5 mm (6.04 x 2.83 x 0.33 in) |
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in) |
163.3 x 77 x 9.1 mm (6.43 x 3.03 x 0.36 in) |
| Weight | 173.8 g (6.1.0.28 oz) | 185 g (6.53 oz) | 198 g (6.98 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), 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 CDMA 800 & TD-SCDMA |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | LTE (unspecified) | 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 (In-display) |
- Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor Water-repellent coating |
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| OS | Android 9.0 (Pie) | Android 10.0 | Android 10 |
| User Interface | Android One | One UI 2.0 | MIUI 11 |
| Processor | Octa-core 2.0 GHz Kryo 260, Qualcomm SDM665 Snapdragon 665 (11 nm) | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55), Mediatek Helio G80 (12 nm) |
| GPU | Adreno 610 | Mali-G52 MC2 | Mali-G52 MC2 |
| RAM | 6 GB | 6 GB | 4 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 256 GB (uses shared SIM slot) | microSDXC | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 5 |
Super AMOLED Capacitive Touchscreen | IPS LCD Capacitive Touchscreen Corning Gorilla Glass 3 400 nits typ. brightness (advertised) |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 6.08 inches | 6.4 inches | 6.53 inches |
| Resolution | 720 x 1560 pixels (283 ppi) | 1080 x 2400 pixels (411 ppi) | 1080 x 2340 pixels (395 ppi) |
| Screen-to-Body Ratio | 81.98% | 85.01% | 83.11% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | Wireless FM radio (no wired headphones required) |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 2 MP | 48 MP + 8 MP + 5 MP + 5 MP | 13 MP + 8 MP + 5 MP + 2 MP |
| Flash | LED Flash | LED flash | LED flash |
| Features | 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF 8 MP, (ultrawide), f/2.2, 1.12µm 2 MP, f/2.4, depth sensor HDR, Panorama |
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 |
13 MP, f/2.2, 28mm (wide), 1/3.1", 1.12µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60/120fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 32 MP, f/2.0, 0.8µm, HDR, 1080p@30fps [Similar] |
20 MP, f/2.2, 0.8µm HDR 1080p@30fps [Similar] |
8 MP, f/2.0, 27mm (wide) HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | |
| Edge | Yes | Yes | |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A (2CA) 450/50 Mbps | HSPA, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 5.0, A2DP, LE, aptX HD | 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, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, BDS |
| Browser | Yes | Yes | Yes |
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| Internal | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) | 128 GB, 4 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB (uses shared SIM slot) | microSDXC | 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 18W |
Non-removable Li-Po Battery Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 18W |
| Capacity | 4030 mAh | 5000 mAh | 5020 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 12,999 
