Phone Comparison - Samsung Galaxy S8 vs Samsung Galaxy A71 vs Xiaomi Redmi Note 9 4G
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Samsung | Xiaomi |
| Announced | March 2017 | December 2019 | November 2020 |
| Status | Available - April 2017 | Available. Released 2020, January | Coming Soon - December 2020 |
| Price | Rs. 57,900 ($720.00) [Similarly Priced] | Rs. 29,999 ($0.00) [Similarly Priced] | - |
| Colors | Black, White, Gold, Silver, Pink Gold | Prism Crush White, Black, Pink, Blue | Gray, Green, Blue, Orange |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
148.9 x 68.1 x 8 mm (5.86 x 2.68 x 0.31 in) |
163.6 x 76.0 x 7.7 mm (6.44 x 2.99 x 0.3 in) |
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
| Weight | 155 g (5.47 oz) | 179 g (6.31 oz) | 198 g (6.98 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 CDMA 800 |
| 3G Network | HSDPA | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100) | 1, 3, 5, 8, 34, 38, 39, 40, 41 |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor(In-display) |
- Fingerprint Sensor |
| Notification LED | Yes | - | - |
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| OS | Android OS, v7.0 (Nougat) | Android 10.0 | Android 10 |
| User Interface | - | One UI 2.0 | MIUI 12 |
| 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 (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver), Qualcomm SDM730 Snapdragon 730 (8 nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | Adreno 540 | Adreno 618 | Adreno 610 |
| RAM | 4 GB | 8 GB | 8 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) | microSDXC (dedicated slot) |
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| Type | Super AMOLED capacitive touchscreen, Gorilla Glass 5 | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | IPS LCD Screen Corning Gorilla Glass 3 400 nits (typ) |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 5.8 inches | 6.7 inches | 6.53 inches |
| Resolution | 1440 x 2960 pixels (568 ppi) | 1080 x 2400 pixels (393 ppi) | 1080 x 2340 pixels (395 ppi) |
| Screen-to-Body Ratio | 84.06% | 87.08% | 83.29% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 12 MP | 64 MP + 12 MP + 5 MP + 5 MP | 48 MP + 8 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 | 64 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 |
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) HDR, Panorama |
| Video | 2160p@60fps, 1080p@120fps, HDR, dual-video rec. | 2160p@30fps, 1080p@30/60/240fps, 1080p@960fps; gyro-EIS | 1080p@30fps |
| Front Camera | 8 MP, AF [Similar] |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm 1080p@30fps [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 | 4.2, A2DP |
| 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 | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 64 GB, 4 GB RAM | 128 GB, 8 GB RAM | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB (dedicated slot) | microSD, up to 512 GB (dedicated slot) | 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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| 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 25W |
Non-removable Li-Po Battery Fast battery charging 18W Reverse charging 2.5W |
| Capacity | 3000 mAh | 4000 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 57,900 
