Phone Comparison - Samsung Galaxy A40 vs Samsung Galaxy A12 vs Xiaomi Redmi 9T
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| Manufacturer | Samsung | Samsung | Xiaomi |
| Announced | March 2019 | 2020, November 24 | January 2021 |
| Status | Coming Soon - April 2019 | Coming Soon - January 2021 | Coming Soon - January 2021 |
| Price | - | Rs. 12,999 ($0.00) [Similarly Priced] | - |
| Colors | Black, White, Blue, Coral | Black, White, Blue, Red | Carbon Gray, Twilight Blue, Sunrise Orange, Ocean Green |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
144.3 x 69.1 x 7.9 mm (5.68 x 2.72 x 0.31 in) |
164 x 75.8 x 8.9 mm (6.46 x 2.98 x 0.35 in) |
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
| Weight | - | 205 g (7.23 oz) | 198 g (6.98 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 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) | LTE (unspecified) | 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) |
- Fingerprint Sensor Water-repellent coating |
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| OS | Android 9.0 (Pie) | Android 10 | Android 10 |
| Processor | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53), Exynos 7885 Octa (14 nm) | Octa-core (2.3 GHz, 1.8 GHz) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | Mali-G71 | - | Adreno 610 |
| RAM | 4 GB | 4 GB | 6 GB |
| Internal Memory | 64 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 512 GB (dedicated slot) | microSDXC | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen | HD+ TFT display | IPS LCD Screen 400 nits (typ) Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M Colour | 16M Colour |
| Size | 5.9 inches | 6.5 inches | 6.53 inches |
| Resolution | 1080 x 2280 pixels (428 ppi) | 720 x 1560 pixels (264 ppi) | 1080 x 2340 pixels (395 ppi) |
| Screen-to-Body Ratio | 86.97% | 83.64% | 83.29% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | Unspecified | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP + 5 MP | 48 MP + 5 MP + 2 MP + 2 MP | 48 MP + 8 MP + 2 MP + 2 MP |
| Flash | LED Flash | LED flash | LED Flash |
| Features | 16 MP, f/2.0, PDAF 5 MP, f/2.2, 12mm, (ultrawide) 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, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 2160p@30fps, 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 25 MP, 1080p@30fps [Similar] |
8 MP, f/2.2 1080p@30fps [Similar] |
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 4.2, A2DP, LE | Yes | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | Yes | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | Type-C 1.0 reversible connector | USB Type-C 2.0 | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | Yes | Yes | Yes |
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| Internal | 64 GB, 4 GB RAM | 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, 6 GB RAM or 128 GB (UFS 2.2), 4 GB RAM or 64 GB (UFS 2.1), 4 GB RAM |
| Expandable Storage | microSD, up to 512 GB (dedicated slot) | microSDXC | microSDXC (dedicated slot) |
| USB OTG | Supported | Not 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 | Non-removable Li-Po Battery Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 18W Reverse charging 2.5W |
| Capacity | 3100 mAh | 5000 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
