Phone Comparison - Samsung Galaxy A31 vs Samsung Galaxy A12 vs Xiaomi Redmi Note 9T 5G
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| Manufacturer | Samsung | Samsung | Xiaomi |
| Announced | 2020, March 24 | 2020, November 24 | Expected Announcement - January 2020 |
| Status | Coming Soon - April 2020 | Coming Soon - January 2021 | Rumored - January 2021 |
| Price | - | Rs. 12,999 ($0.00) [Similarly Priced] | - |
| Colors | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White | Black, White, Blue, Red | Gray, Green, Violet |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in) |
164 x 75.8 x 8.9 mm (6.46 x 2.98 x 0.35 in) |
162 x 77.3 x 9.2 mm (6.38 x 3.04 x 0.36 in) |
| Weight | 185 g (6.53 oz) | 205 g (7.23 oz) | 199 g (7.02 oz) |
| SIM Type | Single SIM (Nano-SIM), 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 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA2000 1xEV-DO |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE (unspecified) | LTE (unspecified) | LTE |
| 5G Network | - | - | SA/NSA/Sub6 |
| Messaging | |||
| Build Features | - Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor (side-mounted) |
- Fingerprint Sensor Water-repellent coating |
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| OS | Android 10.0 | Android 10 | Android 10 |
| User Interface | One UI 2.0 | - | MIUI 12 |
| Processor | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) | Octa-core (2.3 GHz, 1.8 GHz) | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), MediaTek Dimensity 800U 5G (7 nm) |
| GPU | Mali-G52 MC2 | - | Mali-G57 MC3 |
| RAM | 6 GB | 4 GB | 4 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSDXC | microSDXC | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen | HD+ TFT display | IPS LCD Screen 90Hz Refresh Rate Corning Gorilla Glass 5 450 nits (typ) |
| Colors | 16M colors | 16M Colour | 16M Colour |
| Size | 6.4 inches | 6.5 inches | 6.53 inches |
| Resolution | 1080 x 2400 pixels (411 ppi) | 720 x 1560 pixels (264 ppi) | 1080 x 2340 pixels (395 ppi) |
| Screen-to-Body Ratio | 85.01% | 83.64% | 83.45% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | Unspecified | 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 + 5 MP + 2 MP + 2 MP | 48 MP + 8 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, (wide), AF 5 MP, f/2.2, 115˚ (ultrawide) 2 MP, f/2.4, (macro) 2 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, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 4K@30fps, 1080p@30/60fps |
| Front Camera |
20 MP, f/2.2, 0.8µm HDR 1080p@30fps [Similar] |
8 MP, f/2.2 1080p@30fps [Similar] |
13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm, , 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 Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| Bluetooth | 5.0, A2DP, LE | Yes | 5.1, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Yes | 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 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, QZSS |
| 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 or 64 GB, 4 GB RAM or 64 GB, 3 GB RAM or 32 GB, 3 GB RAM | 128 GB, 4 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSDXC | microSDXC | microSDXC (dedicated slot) |
| USB OTG | Supported | Not 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 18W |
| Capacity | 5000 mAh | 5000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
