Phone Comparison - Samsung Galaxy S8 vs Samsung Galaxy A71 vs Xiaomi Redmi Note 9 4G

Price Comparison (India) - -

general General Info

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 - -

hardware Hardware and OS

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)

display Display

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 yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No FM radio FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

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]

connectivity Connectivity and Data Rate

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

memory User Memory

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

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor not present
Barometer Sensor barometer sensor present barometer sensor not present barometer sensor not present
Heart-rate Sensor heart rate sensor present heart rate sensor not present heart rate sensor not present
NFC NFC supported NFC not supported NFC not supported

battery Battery

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 - - -