Phone Comparison - Samsung Galaxy A40 vs Xiaomi Redmi Note 8T vs Samsung Galaxy M21
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| Manufacturer | Samsung | Xiaomi | Samsung |
| Announced | March 2019 | November 2019 | 2020, March 18 |
| Status | Coming Soon - April 2019 | Coming Soon - November 2019 | Coming soon. Exp. release 2020, March 23 |
| Price | - | - | Rs. 12,999 ($0.00) [Similarly Priced] |
| Colors | Black, White, Blue, Coral | Stellar blue, Moon white, Midnight gray | Midnight Blue, Raven Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
144.3 x 69.1 x 7.9 mm (5.68 x 2.72 x 0.31 in) |
161.1 x 75.4 x 8.6 mm (6.34 x 2.97 x 0.34 in) |
159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in) |
| Weight | - | 200 g (7.05 oz) | 188 g (6.63 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 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 band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor |
- Fingerprint Sensor |
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| OS | Android 9.0 (Pie) | Android 9.0 (Pie) | Android 10.0 |
| User Interface | - | MIUI 10 | One UI 2.0 |
| Processor | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53), Exynos 7885 Octa (14 nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SDM665 Snapdragon 665 (11 nm) | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) |
| GPU | Mali-G71 | Adreno 610 | Mali-G72 MP3 |
| RAM | 4 GB | 4 GB | 6 GB |
| Internal Memory | 64 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 512 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5 | Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3 420 nits max brightness (advertised) |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.9 inches | 6.3 inches | 6.4 inches |
| Resolution | 1080 x 2280 pixels (428 ppi) | 1080 x 2340 pixels (409 ppi) | 1080 x 2340 pixels (403 ppi) |
| Screen-to-Body Ratio | 86.97% | 80.24% | 84.07% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio, RDS, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP + 5 MP | 48 MP + 8 MP + 2 MP + 2 MP | 48 MP + 8 MP + 5 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/1.8, 26mm (wide), 1/2", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm 2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera) 2 MP, f/2.4, 1/5", 1.75µm, depth sensor HDR, Panorama |
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/2.2, (depth) Panorama, HDR |
| Video | 2160p@30fps, 1080p@30fps | 2160p@30fps, 1080p@30/60/120fps, gyro-EIS | 2160p@30fps, 1080p@30fps, gyro-EIS |
| Front Camera | 25 MP, 1080p@30fps [Similar] |
13 MP, f/2.0, 1.12µm 1080p@30fps HDR, panorama [Similar] |
20 MP, f/2.0, (wide), 1/2.8", 1.0μm HDR 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 42.2/11.5 Mbps, LTE-A | HSPA, LTE-A |
| Bluetooth | 4.2, A2DP, LE | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi 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 | 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 |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, 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 32 GB, 3 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 512 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) | 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 | Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 3100 mAh | 4000 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
