Phone Comparison - Xiaomi Mi A3 vs Xiaomi Redmi Note 8 vs Samsung Galaxy M31

Price Comparison (India)

general General Info

Manufacturer Xiaomi Xiaomi Samsung
Announced July 2019 August 2019 2020, February 25
Status Coming Soon - July 2019 Coming Soon - October 2019 Available. Released 2020, March 5
Price Rs. 12,999 ($0.00) [Similarly Priced] Rs. 9,999 ($0.00) [Similarly Priced] Rs. 14,999 ($0.00) [Similarly Priced]
Colors Black, Blue, White Nebula Red, Neptune Blue, Space Black Ocean Blue, Space Black, Red
Form Factor Candybar Candybar Candybar
Dimension 153.5 x 71.9 x 8.5 mm
(6.04 x 2.83 x 0.33 in)
158.3 x 75.3 × 8.35 mm
(6.23 x 2.96 × 0.33 in)
159.2 x 75.1 x 8.9 mm
(6.27 x 2.96 x 0.35 in)
Weight 173.8 g (6.1.0.28 oz) 190 g (6.7 oz) 191 g (6.74 oz)
SIM Type Dual SIM (Nano-SIM, dual stand-by) Hybrid 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
CDMA 800 & TD-SCDMA
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)
Messaging
Build Features - Fingerprint Sensor (In-display)
- Fingerprint Sensor
- Fingerprint Sensor

hardware Hardware and OS

OS Android 9.0 (Pie) Android 9.0 (Pie) Android 10.0
User Interface Android One MIUI 10 One UI 2.0
Processor Octa-core 2.0 GHz Kryo 260, Qualcomm SDM665 Snapdragon 665 (11 nm) Octa-core 2.0 GHz Kryo 260, Qualcomm SDM665 Snapdragon 665 (11 nm) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm)
GPU Adreno 610 Adreno 610 Mali-G72 MP3
RAM 6 GB 6 GB 6 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSD, up to 256 GB (uses shared SIM slot) microSD, up to 256 GB microSD, up to 512 GB

display Display

Type Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 5
Full HD+ curved glass LCD Touchscreen, Corning Gorilla Glass 5 protection Full HD+ Infinity-U Super AMOLED Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 6.08 inches 6.39 inches 6.4 inches
Resolution 720 x 1560 pixels (283 ppi) 1080 x 2340 pixels (403 ppi) 1080 x 2340 pixels (403 ppi)
Screen-to-Body Ratio 81.98% - 83.97%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 48 MP + 8 MP + 2 MP 48 MP + 8 MP + 2 MP + 2 MP 64 MP + 8 MP + 5 MP + 5 MP
Flash LED Flash Dual-LED Flash LED Flash
Features 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF
8 MP, (ultrawide), f/2.2, 1.12µm
2 MP, f/2.4, depth sensor
HDR, Panorama
48 MP, f/1.8, (wide), 1/2", 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
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, 25mm (macro), 1/5.0", 1.12µm
5 MP, f/2.2, (depth)
HDR, Panorama
Video 2160p@30fps, 1080p@30/60/120fps 2160p@30fps, 1080p@30/60/120fps, (gyro-EIS) 2160p@30fps, 1080p@30fps, gyro-EIS
Front Camera 32 MP, f/2.0, 0.8µm, HDR, 1080p@30fps [Similar] 13 MP
HDR
1080p@30fps [Similar]
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
HDR
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A (2CA) 450/50 Mbps HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps HSPA, LTE-A
Bluetooth 5.0, A2DP, LE, aptX HD 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 2.0, Type-C 1.0 reversible connector
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 6 GB RAM or 64 GB, 4 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM
Expandable Storage microSD, up to 256 GB (uses shared SIM slot) microSD, up to 256 GB microSD, up to 512 GB
USB OTG Supported Yes Yes

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
Non-removable Li-Po Battery
Fast battery charging 18W (Quick Charge 4)
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 4030 mAh 4000 mAh 6000 mAh
Stand by - - -
Talk Time - - -