Phone Comparison - Samsung Galaxy S8 vs Samsung Galaxy A51 vs OnePlus Nord
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| Manufacturer | Samsung | Samsung | OnePlus |
| Announced | March 2017 | December 2019 | 2020, July 21 |
| Status | Available - April 2017 | Coming Soon - December 12, 2019 | Coming soon. Exp. release 2020, August 04 |
| Price | Rs. 57,900 ($720.00) [Similarly Priced] | Rs. 23,999 ($0.00) [Similarly Priced] | Rs. 24,999 ($0.00) [Similarly Priced] |
| Colors | Black, White, Gold, Silver, Pink Gold | Prism Crush White, Black, Pink, Blue | Blue Marble, Gray Onyx, Gray Ash |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
148.9 x 68.1 x 8 mm (5.86 x 2.68 x 0.31 in) |
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in) |
158.3 x 73.3 x 8.2 mm (6.23 x 2.89 x 0.32 in) |
| Weight | 155 g (5.47 oz) | 172 g (6.07 oz) | 184 g (6.49 oz) |
| SIM Type | Dual-SIM | Single SIM (Nano-SIM), 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 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 2100 |
| 4G Network | LTE | LTE (unspecified) | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) |
| 5G Network | - | - | 5G SA/NSA |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor(In-display) |
- Fingerprint Sensor (under display, optical) |
| Notification LED | Yes | - | - |
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| OS | Android OS, v7.0 (Nougat) | Android 9.0 (Pie) | Android 10 |
| User Interface | - | One UI | OxygenOS 10.0 |
| Processor | Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) Octa-core (4x2.3 GHz & 4x1.7 GHz), Qualcomm MSM8998 Snapdragon 835 Exynos 8895 Octa |
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) | 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) |
| GPU | Adreno 540 | Mali-G72 MP3 | Adreno 620 |
| RAM | 4 GB | 8 GB | 12 GB |
| Internal Memory | 64 GB | 128 GB | 256 GB |
| External Memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 512 GB (dedicated slot) | No |
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| Type | Super AMOLED capacitive touchscreen, Gorilla Glass 5 | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | FHD+ Fluid AMOLED Capacitive Touchscreen Corning Gorilla Glass 5 90Hz refresh rate |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.8 inches | 6.5 inches | 6.44 inches |
| Resolution | 1440 x 2960 pixels (568 ppi) | 1080 x 2340 pixels (396 ppi) | 1080 x 2400 pixels (409 ppi) |
| Screen-to-Body Ratio | 84.06% | 89.06% | 86.15% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | Unspecified |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 12 MP | 48 MP + 12 MP + 5 MP + 5 MP | 48 MP + 8 MP + 5 MP + 2 MP |
| Flash | Dual-LED (Dual Tone) | LED Flash | LED flash |
| Features | Phase Detection Autofocus, OIS, f/1.7 aperture, Geo-tagging, Simultaneous 4K Video And 9MP Image Recording, Touch Focus, Face/smile Detection, Auto HDR, Panorama | 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/1.75, Sony IMX 586, 25mm (wide), 1/1.43", 1.12µm, OIS, EIS 8 MP, f/2.3, 14mm, 119° ultrawide 5 MP, f/2.4, depth sensor 2 MP, f/2.4, (macro) HDR, Panorama |
| Video | 2160p@60fps, 1080p@120fps, HDR, dual-video rec. | 2160p@30fps, 1080p@30fps | 4K@30/60fps, 1080p@30fps, gyro-EIS |
| Front Camera | 8 MP, AF [Similar] |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
32 MP, f/2.5, 26mm (wide), 1/2.8", 0.8µm 8 MP, f/2.5, (ultrawide) HDR 2160p, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE, VoLTE | HSPA, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.2, A2DP, LE, aptX | 5.0, A2DP, LE | 5.1, 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, dual-band, Wi-Fi Direct, hotspot |
| USB | v3.1, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, A-GPS, GLONASS, BDS, NavIC |
| Browser | HTML5 | Yes | Yes |
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| Internal | 64 GB, 4 GB RAM | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM | 256 GB, 12 GB RAM or 128 GB, 8 GB RAM or 64 GB, 6 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 256 GB (dedicated slot) | microSD, up to 512 GB (dedicated slot) | 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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| Barometer Sensor | |
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| Heart-rate Sensor | |
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| NFC | |
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| Type | Non-removable Li-Ion battery | Non-removable Li-Po Battery Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 30W |
| Capacity | 3000 mAh | 4000 mAh | 4115 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 57,900 
Rs. 25,250 
