Phone Comparison - Samsung Galaxy A21s vs Xiaomi Redmi 9A vs Samsung Galaxy A52 4G
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| Manufacturer | Samsung | Xiaomi | Samsung |
| Announced | Expected Announcement - May 2020 | Not announced yet | 2021, March 17 |
| Status | Rumored | Rumored | Coming soon. Exp. release 2021, March 26 |
| Colors | Black, White, Blue | Blue, other colors | Awesome Black, Awesome White, Awesome Violet, Awesome Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
8.9 mm thickness (0.35 in thickness) |
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159.9 x 75.1 x 8.4 mm (6.3 x 2.96 x 0.33 in) |
| Weight | 191 g (6.74 oz) | - | 189 g (6.67 oz) |
| SIM Type | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), Hybrid 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 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor |
- Fingerprint Sensor (under display, optical) IP67 |
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| OS | Android 10.0 | Android 10.0 | Android 11 |
| User Interface | One UI 2.0 | MIUI 12 | One UI 3.0 |
| Processor | Octa-core 2.0 GHz, Exynos 850 | , MediaTek Helio G25 | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) |
| GPU | - | Mali-G31 | Adreno 618 |
| RAM | 3 GB | 3 GB | 8 GB |
| Internal Memory | 64 GB | 32 GB | 256 GB |
| External Memory | microSDXC | microSDXC (dedicated slot) | microSDXC |
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| Type | PLS TFT Capacitive Touchscreen | IPS LCD Capacitive Touchscreen | FHD+ Super AMOLED Screen 90Hz Refresh Rate 800 nits (peak) Corning Gorilla Glass 5 |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.55 inches | 6.53 inches | 6.5 inches |
| Resolution | 720 x 1600 pixels (268 ppi) | 720 x 1600 pixels (269 ppi) | 1080 x 2400 pixels (405 ppi) |
| Screen-to-Body Ratio | - | - | 84.90% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | - | Unspecified |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 2 MP | 13 MP | 64 MP + 8 MP + 5 MP + 2 MP |
| Flash | LED Flash | LED Flash | LED flash |
| Features | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) Panorama, HDR |
13 MP, f/1.8, (wide), 1/3.1", 1.12µm, PDAF HDR, Panorama |
64 MP, f/1.8, 26mm (wide), PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.2, (depth) panorama, HDR |
| Video | 1080p@30fps | 1080p@30fps | 4K@30fps, 1080p@30/120fps; gyro-EIS |
| Front Camera |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
5 MP HDR 1080p@30fps [Similar] |
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm HDR 4K@30fps, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | Yes | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | Yes | Yes | Yes |
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| Internal | 64 GB, 3 GB RAM or 32 GB, 3 GB RAM | 32 GB, 3 GB RAM | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM |
| Expandable Storage | microSDXC | microSDXC (dedicated slot) | microSDXC |
| 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 Battery Charging 10W |
Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast charging 25W, 50% in 30 min (advertised) |
| Capacity | 5000 mAh | 5000 mAh | 4500 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
