Phone Comparison - Samsung Galaxy A51 vs Oppo Reno3 Pro vs Samsung Galaxy M21
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| Price Comparison (India) | - | ||
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| Manufacturer | Samsung | Oppo | Samsung |
| Announced | December 2019 | 2020, March 2 | 2020, March 18 |
| Status | Coming Soon - December 12, 2019 | Coming soon. Exp. release 2020, March 6 | Coming soon. Exp. release 2020, March 23 |
| Price | Rs. 23,999 ($0.00) [Similarly Priced] | Rs. 29,990 ($0.00) [Similarly Priced] | Rs. 12,999 ($0.00) [Similarly Priced] |
| Colors | Prism Crush White, Black, Pink, Blue | Auroral Blue, Midnight Black, Sky White | Midnight Blue, Raven Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in) |
158.8 x 73.4 x 8.1 mm (6.25 x 2.89 x 0.32 in) |
159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in) |
| Weight | 172 g (6.07 oz) | 175 g (6.17 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 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE (unspecified) | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | 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(In-display) |
- Fingerprint Sensor (under display, optical) |
- Fingerprint Sensor |
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| OS | Android 9.0 (Pie) | Android 10.0 | Android 10.0 |
| User Interface | One UI | ColorOS 7 | One UI 2.0 |
| Processor | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) | Octa core (4 x 2.2 GHz Cortex A75 + 4 x 2.0 GHz Cortex A55), Mediatek Helio P95 | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) |
| GPU | Mali-G72 MP3 | IMG PowerVR GM 9446 | Mali-G72 MP3 |
| RAM | 8 GB | 8 GB | 6 GB |
| Internal Memory | 128 GB | 256 GB | 128 GB |
| External Memory | microSD, up to 512 GB (dedicated slot) | No | microSDXC (dedicated slot) |
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| Type | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | FHD+ Super AMOLED 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 | 6.5 inches | 6.4 inches | 6.4 inches |
| Resolution | 1080 x 2340 pixels (396 ppi) | 1080 x 2400 pixels (411 ppi) | 1080 x 2340 pixels (403 ppi) |
| Screen-to-Body Ratio | 89.06% | 84.93% | 84.07% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | FM radio, RDS, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 12 MP + 5 MP + 5 MP | 64 MP + 13 MP + 8 MP + 2 MP | 48 MP + 8 MP + 5 MP |
| Flash | LED Flash | Dual-LED flash | LED Flash |
| Features | 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF 12 MP, f/2.2, 13mm (ultrawide) 5 MP, f/2.2, depth sensor 5 MP, f/2.4, macro camera Panorama, HDR |
64 MP, f/1.7, (wide), PDAF, OIS 13 MP, f/2.4, 53mm (telephoto), 1/3.4", 1.0µm, PDAF, 2x optical zoom 8 MP, f/2.2, 13mm (ultrawide), 1/3.2", 1.4µm 2 MP B/W, f/2.4, 1/5", 1.75µm 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@30/60/120/240fps; gyro-EIS, OIS | 2160p@30fps, 1080p@30fps, gyro-EIS |
| Front Camera |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
44 MP Punch-hole 2 MP, f/2.4, (depth) HDR 1080p@30fps [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, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A, 5G 3.7/1.6 Gbps | HSPA, LTE-A |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE, aptX | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/ax, 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 | Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, BDS |
| Browser | Yes | Yes | Yes |
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| Internal | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM | 256 GB, 8 GB RAM or 128 GB, 8 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) | No | 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 Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 30W: 50% in 20min (VOOC Flash Charge 4.0) |
Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 4000 mAh | 4025 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 25,250 
