Phone Comparison - Xiaomi Redmi Note 8 Pro vs Samsung Galaxy A51 vs Samsung Galaxy A31

Price Comparison (India) -

general General Info

Manufacturer Xiaomi Samsung Samsung
Announced August 2019 December 2019 2020, March 24
Status Coming Soon - October 2019 Coming Soon - December 12, 2019 Coming Soon - April 2020
Price Rs. 14,999 ($0.00) [Similarly Priced] Rs. 23,999 ($0.00) [Similarly Priced] -
Colors Gamma Green, Halo White, Shadow Black Prism Crush White, Black, Pink, Blue Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Form Factor Candybar Candybar Candybar
Dimension 161.3 × 76.4 × 8.79 mm
(6.35 × 3.01 × 0.35 in)
158.4 x 73.7 x 7.9 mm
(6.24 x 2.9 x 0.31 in)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
Weight 199.8 g (7.02.0.28 oz) 172 g (6.07 oz) 185 g (6.53 oz)
SIM Type Hybrid Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), 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 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500) LTE (unspecified) LTE (unspecified)
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor(In-display)
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

OS Android 9.0 (Pie) Android 9.0 (Pie) Android 10.0
User Interface MIUI 10 One UI One UI 2.0
Processor Octa core (2.05 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55), MediaTek Helio G90T Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)
GPU Mali-G76 MP4 Mali-G72 MP3 Mali-G52 MC2
RAM 8 GB 8 GB 6 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSD, up to 256 GB microSD, up to 512 GB (dedicated slot) microSDXC

display Display

Type Full HD+ LCD Capacitive Touchscreen, Corning Gorilla Glass protection Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen Super AMOLED Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 6.53 inches 6.5 inches 6.4 inches
Resolution 1080 x 2340 pixels (395 ppi) 1080 x 2340 pixels (396 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio - 89.06% 85.01%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio, recording FM radio -
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 64 MP + 8 MP + 2 MP + 2 MP 48 MP + 12 MP + 5 MP + 5 MP 48 MP + 8 MP + 5 MP + 5 MP
Flash Dual-LED Flash LED Flash LED flash
Features 64 MP, f/1.8, (wide), 1/1.7", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm
2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
2 MP, f/2.4, 1/5", 1.75µm, depth sensor
HDR, Panorana
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
48 MP, f/2.0, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.4, (depth)
panorama, HDR
Video 2160p@30fps, 1080p@30/60/120fps, (gyro-EIS) 2160p@30fps, 1080p@30fps 1080p@30fps
Front Camera 20 MP, f/2.0, 0.9µm
HDR
1080p@30fps [Similar]
32 MP, f/2.0, 25mm (wide)
HDR
1080p@30fps [Similar]
20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps HSPA, LTE-A HSPA, LTE-A
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE 5.0, A2DP, LE
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 2.0, 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, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 6 GB 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1)
Expandable Storage microSD, up to 256 GB microSD, up to 512 GB (dedicated slot) microSDXC
USB OTG Yes 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 present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 18W (Quick Charge 4)
Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 4500 mAh 4000 mAh 5000 mAh
Stand by - - -
Talk Time - - -