Xiaomi Redmi S2 vs Samsung Galaxy A31 Specs Comparison

Availability

Officially announced
	Mar 24, 2020
Prices (MSRP)
	€300

Design

Dimensions
6.33 x 3.04 x 0.32 inches 160.73 x 77.26 x 8.1 mm	6.27 x 2.88 x 0.34 inches 159.3 x 73.1 x 8.6 mm
Weight
6.00 oz / 170.0 g	6.53 oz / 185.0 g
Materials
Back: Plastic	Back: Plastic
Biometrics
Fingerprint (touch)	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Gold, Silver, Pink	Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Display

Size
6.0-inch, 74.58% screen-to-body	6.4-inch, 84.88% screen-to-body
Type
LCD	Super AMOLED, 60Hz
Resolution
1440x720px, 18:9 ratio, 269 PPI	2400x1080px, 20:9 ratio, 411 PPI

Hardware

System chip
Snapdragon 625 MSM8953 (14 nm)	MediaTek Helio P65 MT6768 (12 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core 2x2.0GHz Cortex-A75 6x2.0G​Hz Cortex-A55
GPU
Adreno 506	Mali-G52 MC2
Memory
3GB (LPDDR3)/32GB	4GB (LPDDR4)/64GB (eMMC 5.1) 6GB/128GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.1 Oreo)	Android (10)

Battery

Type
3080 mAh	5000 mAh, Li - Polymer
Charging
	Fast charging
Charge speed
	Wired: 15.0W

Camera

Rear
Dual camera	Quad camera
Main camera
12 MP (PDAF) Aperture size: F2.2 Pixel size: 1.25 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
5 MP (Depth information)	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	5 MP (Macro) Aperture size: F2.4
Fourth camera
	5 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
1080p (30 fps), 720p (30 fps) EIS, Video calling, Video sharing	1080p (30 fps)
Front
16 MP (Flash, HDR) Video capture: 1080p	20 MP Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
b,g,n Hotspot, Wi-Fi Direct 802.11 b, g, n	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 4, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 20
4G (TDD) Bands
38, 40	38, 40, 41
3G Bands
5, 8, 2, 1	1, 2, 5, 8
Data Speed
LTE, HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
	Date approved: Mar 08, 2020 FCC ID value: A3LSMA315GL
Measured SAR
	Head: 0.53 W/kg Body: 0.56 W/kg Simultaneous Transmission: 1.42 W/kg Wireless Router: 0.65 W/kg Phablet: 0.89 W/kg

Alternative variants

with 128GB storage

Memory	6GB/128GB

Discover more

Full Specs Xiaomi Redmi S2 Specs

Full Specs Samsung Galaxy A31 Specs