Phone Comparison - Samsung Galaxy A21s vs Oppo Reno4 5G vs Oppo A74
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| Manufacturer | Samsung | Oppo | Oppo |
| Announced | Expected Announcement - May 2020 | June 2020 | 2021, April 01 |
| Status | Rumored | Coming Soon - June 2020 | Coming soon. Exp. release 2021, April |
| Colors | Black, White, Blue | Black, Blue, Purple | Prism Black, Midnight Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
8.9 mm thickness (0.35 in thickness) |
159.3 x 74 x 7.8 mm (6.27 x 2.91 x 0.31 in) |
160.3 x 73.8 x 8 mm (6.31 x 2.91 x 0.31 in) |
| Weight | 191 g (6.74 oz) | 183 g (6.46 oz) | 175 g (6.17 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 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41 | LTE 1, 3, 5, 8, 38, 40, 41 |
| 5G Network | - | 1, 3, 41, 78, 79 SA/NSA | - |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor (under display, optical) Glass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame |
- Fingerprint Sensor (under display, optical) |
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| OS | Android 10.0 | Android 10 | Android 11 |
| User Interface | One UI 2.0 | ColorOS 7.2 | ColorOS 11.1 |
| Processor | Octa-core 2.0 GHz, Exynos 850 | Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver), Qualcomm SDM765 Snapdragon 765G (7 nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | - | Adreno 620 | Adreno 610 |
| RAM | 3 GB | 8 GB | 6 GB |
| Internal Memory | 64 GB | 256 GB | 128 GB |
| External Memory | microSDXC | No | microSDXC |
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| Type | PLS TFT Capacitive Touchscreen | AMOLED Capacitive Touchscreen Corning Gorilla Glass 6 430 nits typ. brightness (advertised) |
FHD+ AMOLED Screen 430 nits (typ), 800 nits (peak) |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.55 inches | 6.43 inches | 6.43 inches |
| Resolution | 720 x 1600 pixels (268 ppi) | 1080 x 2400 pixels (409 ppi) | 1080 x 2400 pixels (409 ppi) |
| Screen-to-Body Ratio | - | 84.80% | 84.50% |
| 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 | 48 MP + 8 MP + 2 MP | 48 MP + 2 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 |
48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) HDR, Panorama |
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 |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps; gyro-EIS, HDR | 1080p@30fps |
| Front Camera |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
32 MP, f/2.4, 26mm (wide), 1/2.8", 0.8µm 2 MP, f/2.4, (depth) HDR 1080p@30fps, gyro-EIS [Similar] |
16 MP, f/2.0, 26mm (wide), 1/3.06", 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 | HSPA 42.2/5.76 Mbps, LTE-A, 5G 3.7/1.6 Gbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 5.0, A2DP, LE | 5.1, A2DP, LE, aptX HD | 5.0, A2DP, LE, aptX |
| 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 | 3.1, Type-C 1.0 reversible connector, USB On-The-Go | USB Type-C, USB On-The-Go |
| GPS | Yes, with A-GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS | 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 | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM (UFS 2.1) | 128 GB, 6 GB RAM (UFS 2.1) |
| Expandable Storage | microSDXC | No | 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 Fast charging 65W, 60% in 15 min, 100% in 36 min (advertised) SuperVOOC 2.0 |
Non-removable Li-Po Battery Fast battery charging 33W, 54% in 30 min (advertised) SuperVOOC 2.0 |
| Capacity | 5000 mAh | 4000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
