Phone Comparison - Samsung Galaxy A21 vs Xiaomi Redmi Note 9 vs Oppo A53s 5G
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Xiaomi | Oppo |
| Announced | 2020, April 8 | 2020, April 30 | 2021, April 27 |
| Status | Coming soon. Exp. release 2020, April | Coming soon. Exp. release 2020, May | Coming soon. Exp. release 2021, May 2ndl |
| Price | - | - | Rs. 14,990 ($0.00) [Similarly Priced] |
| Colors | Various | Forest Green, Midnight Grey, Polar White | Black, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
162.3 x 77.2 x 8.9 mm (6.39 x 3.04 x 0.35 in) |
163.9 x 75.7 x 8.4 mm (6.45 x 2.98 x 0.33 in) |
| Weight | - | 199 g (7.02 oz) | 186 g (6.56 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 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 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 25(1900), 2628, 32(1500), 38(2600), 39(1900), 40(2300), 41(2500) | LTE |
| 5G Network | - | - | SA/NSA |
| Messaging | |||
| Build Features | - Fingerprint Sensor Glass front, plastic back, plastic frame |
- Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) |
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| OS | Android 10.0 | Android 10.0 | Android 11 |
| User Interface | One UI 2.0 | MIUI 11 | ColorOS 11.1 |
| Processor | Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) | Octa-core (2x Cortex-A75 @ 2 GHz, 6x Cortex-A55 @ 2 GHz), MediaTek Helio G85 (12nm) | Octa-core (4x2.2 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55), MediaTek MT6833 Dimensity 700 5G (7 nm) |
| GPU | PowerVR GE8320 | Mali-G52 MC2 | Mali-G57 MC2 |
| RAM | 3 GB | 4 GB | 6 GB |
| Internal Memory | 64 GB | 128 GB | 128 GB |
| External Memory | microSDXC (dedicated slot) | microSDXC (dedicated slot) | microSDXC |
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| Type | HD+ Super AMOLED Capacitive Touchscreen | FHD+ IPS LCD Capacitive Touchscreen | HD+ IPS LCD Screen 480 nits (peak) |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.5 inches | 6.53 inches | 6.5 inches |
| Resolution | 720 x 1600 pixels (270 ppi) | 1080 x 2340 pixels (395 ppi) | 720 x 1600 pixels (270 ppi) |
| Screen-to-Body Ratio | - | 83.40% | 82.17% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio, recording | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP + 8 MP + 2 MP + 2 MP | 48 MP + 8 MP + 2 MP + 2 MP | 13 MP + 2 MP + 2 MP |
| Flash | No | LED flash | LED Flash |
| Features | 16 MP, f/1.9, 28mm (wide), AF 8 MP, f/2.2, 12mm (ultrawide) 2 MP, (macro) 2 MP, (depth) panorama, HDR |
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro), AF 2 MP, f/2.4, (depth) HDR, Panorama |
13 MP, f/2.2, 25mm (wide), 1/3.06", 1.12µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera |
13 MP HDR 1080p@30fps [Similar] |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
8 MP, f/2.0, (wide) HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | 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 | 5.1, 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 | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector | 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, 3 GB RAM eMMC 5.1 | 128 GB, 4 GB RAM or 64 GB, 3 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSDXC (dedicated slot) | 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 Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Battery Charging 10W |
| Capacity | 4000 mAh | 5020mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 14,990 
