Phone Comparison - Samsung Galaxy A21s vs Xiaomi Redmi Note 10 5G vs Oppo A54 5G
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| Manufacturer | Samsung | Xiaomi | Oppo |
| Announced | Expected Announcement - May 2020 | March 2021 | 2021, April 14 |
| Status | Rumored | Coming Soon - April 2021 | Available. Released 2021, April 14 |
| Colors | Black, White, Blue | Chrome Silver, Graphite Gray, Nighttime Blue, Aurora Green | Fluid Black, Fantastic Purple, Space Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
8.9 mm thickness (0.35 in thickness) |
161.8 x 75.3 x 8.9 mm (6.37 x 2.96 x 0.35 in) |
162.9 x 74.7 x 8.4 mm (6.41 x 2.94 x 0.33 in) |
| Weight | 191 g (6.74 oz) | 190 g (6.7 oz) | 190 g (6.7 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 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 38, 40, 41, 66 | LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66 |
| 5G Network | - | 1, 3, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) |
- Fingerprint Sensor (side-mounted) |
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| OS | Android 10.0 | Android 11 | Android 11 |
| User Interface | One UI 2.0 | MIUI 12 | ColorOS 11.1 |
| Processor | Octa-core 2.0 GHz, Exynos 850 | Octa-core (4x2.2 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55), MediaTek MT6833 Dimensity 700 5G (7 nm) | Octa-core (2x2.0 GHz Kryo 460 & 6x1.8 GHz Kryo 460), Qualcomm SM4350 Snapdragon 480 5G (8 nm) |
| GPU | - | Mali-G57 MC2 | Adreno 619 |
| RAM | 3 GB | 6 GB | 4 GB |
| Internal Memory | 64 GB | 128 GB | 64 GB |
| External Memory | microSDXC | microSDXC (dedicated slot) | microSDXC |
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| Type | PLS TFT Capacitive Touchscreen | FHD+ IPS LCD Screen 90Hz Refresh Rate 400 nits (typ) Corning Gorilla Glass 3 |
FHD+ LTPS IPS LCD 90Hz Refresh Rate 480 nits (typ) |
| Colors | 16M colors | 16M Colour | 16M Colour |
| Size | 6.55 inches | 6.5 inches | 6.5 inches |
| Resolution | 720 x 1600 pixels (268 ppi) | 1080 x 2400 pixels (405 ppi) | 1080 x 2400 pixels (405 ppi) |
| Screen-to-Body Ratio | - | 83.68% | 83.78% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | Unspecified | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 2 MP | 48 MP + 2 MP + 2 MP | 48 MP + 8 MP + 2 MP + 2 MP |
| Flash | LED Flash | Dual-LED Dual-tone 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 |
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, Panorama |
48 MP, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps | 4K@30fps, 1080p@30fps, gyro-EIS |
| Front Camera |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
8 MP, f/2.0, (wide) Panorama 1080p@30fps [Similar] |
16 MP, f/2.0 Panorama 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 (CA), 5G | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| Bluetooth | 5.0, A2DP, LE | 5.1, A2DP, LE | 5.1, A2DP, LE, aptX HD |
| Wi-Fi | Wi-Fi 802.11 b/g/n, 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 | Yes | USB Type-C 2.0 | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS | 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, 3 GB RAM or 32 GB, 3 GB RAM | 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 4 GB RAM UFS 2.2 | 64 GB, 4 GB RAM UFS 2.1 |
| Expandable Storage | microSDXC | microSDXC (dedicated slot) | microSDXC |
| 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 Battery Charging 10W |
Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Battery charging 10W |
| Capacity | 5000 mAh | 5000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
