Phone Comparison - Realme C21 vs Oppo A77 vs Oppo Reno8
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| Price Comparison (India) | - | ||
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| Manufacturer | realme | Oppo | Oppo |
| Announced | 2021, March 05 | June 2022 | July 2022 |
| Status | Available. Released 2021, March 05 | Coming Soon - June 2022 | Coming Soon - July 2022 |
| Price | Rs. 8,999 ($0.00) [Similarly Priced] | - | Rs. 29,999 ($0.00) [Similarly Priced] |
| Colors | Cross Black, Cross Blue | Ocean Blue, Midnight Black | Shimmer Gold, Shimmer Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
165.2 x 76.4 x 8.9 mm (6.5 x 3.01 x 0.35 in) |
163.8 x 75.1 x 8 mm (6.45 x 2.96 x 0.31 in) |
160.6 x 73.4 x 7.7 mm (6.32 x 2.89 x 0.3 in) |
| Weight | 190 g (6.7 oz) | 190 g (6.7 oz) | 179 g (6.31 oz) |
| SIM Type | 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41 |
| 5G Network | - | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA |
| Messaging | |||
| Build Features | - Fingerprint Sensor (rear-mounted) |
- Fingerprint Sensor (side-mounted) IPX4 water resistant |
- Fingerprint Sensor (under display, optical) |
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| OS | Android 10 | Android 12 | Android 12 |
| User Interface | Realme UI 1.0 | ColorOS 12.1 | ColorOS 12.1 |
| Processor | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), MediaTek Helio G35 (12 nm) | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), MediaTek MT6833P Dimensity 810 (6 nm) | Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55), MediaTek Dimensity 1300 (6 nm) |
| GPU | PowerVR GE8320 | Mali-G57 MC2 | Mali-G77 MC9 |
| RAM | 4 GB | 6 GB | 8 GB |
| Internal Memory | 64 GB | 128 GB | 256 GB |
| External Memory | microSDXC (dedicated slot) | microSDXC | No |
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| Type | HD+ IPS LCD Screen | HD+ IPS LCD Screen 90Hz Refresh Rate 480 nits (typ), 600 nits (HBM) |
FHD+ AMOLED Screen 90Hz Refresh Rate 430 nits (typ), 600 nits (HBM), 800 nits (peak) Corning Gorilla Glass 5 |
| Colors | 16M Colour | 16M Colors | 16M Colors |
| Size | 6.5 inches | 6.56 inches | 6.4 inches |
| Resolution | 720 x 1600 pixels (270 ppi) | 720 x 1612 pixels (269 ppi) | 1080 x 2400 pixels (411 ppi) |
| Screen-to-Body Ratio | 80.78% | 84.12% | 83.98% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | No | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP + 2 MP + 2 MP | 48 MP + 2 MP | 50 MP + 8 MP + 2 MP |
| Flash | LED Flash | LED Flash | Dual-LED Flash |
| Features | 13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama |
48 MP, f/1.7, 26mm (wide), PDAF 2 MP, f/2.4, (depth) HDR, Panorama |
50 MP, f/1.8, 23mm (wide), 1/1.56", 1.0µm, multi-directional PDAF 8 MP, f/2.2, 16mm, 112˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps, gyro-EIS |
| Front Camera |
5 MP, f/2.2, (wide), 1/5.0", 1.12µm HDR 1080p@30fps [Similar] |
8 MP, f/2.0, 26mm (wide) Panorama 1080p@30fps [Similar] |
32 MP, f/2.4, 23mm (wide), 1/2.74", 0.8µm Panorama, HDR 1080p@30fps, gyro-EIS [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE | HSPA 42.2/5.76 Mbps, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G |
| Bluetooth | 5.1, A2DP, LE | 5.3, A2DP, LE, aptX HD | 5.3, A2DP, LE, aptX HD |
| 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, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB 2.0, USB On-The-Go | USB Type-C 2.0, USB On-The-Go | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS |
| Browser | Yes | Yes | Yes |
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| Internal | 64 GB, 4 GB RAM or 32 GB, 3 GB RAM eMMC 5.1 | 128 GB, 6 GB RAM UFS 2.2 | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1 |
| Expandable Storage | microSDXC (dedicated slot) | microSDXC | No |
| 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 battery Charging 33W, 53% in 30 min (advertised) |
Non-removable Li-Po Battery Fast charging 80W, 1-50% in 11 min, 1-100% in 28 min (advertised) Reverse charging |
| Capacity | 5000 mAh | 5000 mAh | 4500 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 8,999 
