Phone Comparison - Samsung Galaxy S21 5G vs Realme 13 Pro vs Oppo A3x 4G
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Realme | Oppo |
| Announced | 2021, January 14 | July 2024 | August 2024 |
| Status | Coming soon. Exp. release 2021, January 29 | Coming Soon - August 2024 | Available - August 2024 |
| Price | Rs. 69,999 ($799.99) [Similarly Priced] | Rs. 26,999 ($0.00) [Similarly Priced] | - |
| Colors | Phantom Gray, Phantom White, Phantom Violet, Phantom Pink | Monet Gold, Emerald Green, Monet Purple | Nebula Red, Ocean Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
151.7 x 71.2 x 7.9 mm (5.97 x 2.8 x 0.31 in) |
161.3 x 73.9 x 8.2 or 8.4 mm (6.35 x 2.91 x 0.32 or 0.33 in) |
165.8 x 76.1 x 7.7 mm (6.53 x 3 x 0.3 in) |
| Weight | 169 g (5.96 oz) | 183.5 g or 188 g (6.46.0.18 oz or 6.63 oz) | 186 g (6.56 oz) |
| SIM Type | Single SIM (Nano-SIM and/or eSIM), Hybrid 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) CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - version 1 HSDPA 850 / 900 / 2100 - version 2 HSDPA 900 / 2100 - version 3, version 4 |
| 4G Network | LTE | 1, 3, 5, 8, 28, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 26, 28, 38, 40, 41, 66 - version 1 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - version 2 1, 3, 7, 8, 20, 28, 38, 40, 41 - version 3 1, 3, 5, 8, 40 - version 4 |
| 5G Network | SA/NSA/Sub6/mmWave | 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA | - |
| Messaging | |||
| Build Features | - Fingerprint Sensor (under display, ultrasonic) Samsung Pay (Visa, MasterCard certified) IP68 dust/water resistant (up to 1.5m for 30 mins) Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ |
- Fingerprint Sensor (under display, optical) IP65 dust/water resistant |
- Fingerprint Sensor (side-mounted) IP54, dust and splash resistant MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions |
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| OS | Android 11 | Android 14 | Android 14 |
| User Interface | One UI 3.1 | Realme UI 5.0 | ColorOS 14 |
| Processor | Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea, Exynos 2100 - International / Qualcomm Snapdragon 888 - USA/China/Korea | Octa-core (4x2.40 GHz Cortex-A78 & 4x1.95 GHz Cortex-A55), Qualcomm SM7435-AB Snapdragon 7s Gen 2 (4 nm) | , Qualcomm Snapdragon 6s Gen 1 |
| GPU | Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea | Adreno 710 | Adreno 610 |
| RAM | 8 GB | 12 GB | 8 GB |
| Internal Memory | 256 GB | 512 GB | 256 GB |
| External Memory | microSDXC (uses shared SIM slot) | No | microSDXC |
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| Type | FHD+ Dynamic AMOLED 2X Display 120Hz Refresh Rate HDR10+ 1300 nits (peak) Corning Gorilla Glass Victus Always-on display |
FHD+ AMOLED Screen, 120Hz Refresh Rate 600 Nits (typ), 1200 Nits (HBM), 2000 Nits (peak) Corning Gorilla Glass 7i |
HD+ IPS LCD Screen 90Hz Refresh Rate, 1000 Nits (HBM) Panda Glass Protection |
| Colors | 16M Colour | 1B colors | 16M colors |
| Size | 6.2 inches | 6.7 inches | 6.67 inches |
| Resolution | 1080 x 2400 pixels (424 ppi) | 1080 x 2412 pixels (394 ppi) | 720 x 1604 pixels (264 ppi) |
| Screen-to-Body Ratio | 86.12% | 90.82% | 84.73% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio (Snapdragon model only; market/operator dependent) | No | Unspecified |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 12 MP + 64 MP + 12 MP | 50 MP + 8 MP | 8 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm (ultrawide), 1.4µm, Super Steady video Auto-HDR, Panorama |
50 MP, f/1.9, 26mm (wide), 1/1.95", 0.8µm, multi-directional PDAF, OIS 8 MP, f/2.2, 16mm, 112˚ (ultrawide), 1/4.0", 1.12µm HDR, Panorama |
8 MP, f/2.0, (wide), PDAF Auxiliary lens HDR, Panorama |
| Video | 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS | 4K@30fps, 1080p@30/60/120fps, gyro-EIS | 1080p@30fps |
| Front Camera | 10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, Dual Pixel PDAF, Dual video call, Auto-HDR, 4K@30/60fps, 1080p@30fps [Similar] |
32 MP, f/2.5, 22mm (wide) Video - 1080p@30fps [Similar] |
5 MP, f/2.2, (wide) Video - 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G | HSPA, LTE, 5G | HSPA, LTE |
| Bluetooth | 5.0, A2DP, LE | 5.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| USB | USB Type-C 3.2, USB On-The-Go | USB Type-C 2.0 | USB Type-C 2.0, OTG |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | GPS, GLONASS, GALILEO, BDS, QZSS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Browser | Yes | Yes | Yes |
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| Internal | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1 | 512 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM | 256 GB, 8 GB RAM or 256 GB, 6 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 4 GB RAM eMMC 5.1 |
| Expandable Storage | microSDXC (uses shared SIM slot) | No | 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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| Barometer Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery Fast battery charging 25W USB Power Delivery 3.0 Fast Qi/PMA wireless charging 15W Power bank/Reverse wireless charging 4.5W |
Non-removable Li-Po Battery Fast Battery Charging 45W wired, 50% in 27 min |
Non-removable Li-Po Battery Fast Battery Charging 45W wired, PD2.0, PPS, 50% in 30 min |
| Capacity | 4000 mAh | 5200 mAh | 5100 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 26,999 
