Xiaomi Redmi 3S vs Samsung Galaxy A31 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.0 inches
6.4 inches

Resolution:

1280 x 720 pixels, 294 PPI
2400 x 1080 pixels, 20:9 ratio, 411 PPI

Technology:

IPS LCD
Super AMOLED

Refresh rate:

60Hz

Screen-to-body:

71.14 %
84.88 %

Colors:

16 777 216

Features:

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 430 8937
MediaTek Helio P65 MT6768 (12 nm)

Processor:

Octa-core, 1400 MHz, ARM Cortex-A53, 64-bit
Octa-core, 2x 2.0GHz Cortex-A75 + 6x 2.0GHz Cortex-A55, 64-bit

GPU:

Adreno 505
Mali-G52 MC2

RAM:

3GB LPDDR3
4GB LPDDR4

Internal storage:

32GB
64GB (eMMC 5.1), available to use: 46.2 GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (6.0 Marshmallow), Xiaomi MI UI
Android (10), Samsung One UI

Battery

Capacity:

4100 mAh
5000 mAh

Type:

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Fast charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Single camera
Quad camera

Main camera:

13 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F2.0
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)

Specifications:

Aperture size: F2.4

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.4

Flash:

LED
LED

Video recording:

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video calling, Video sharing

Front:

5 MP
20 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

5.48 x 2.74 x 0.33 inches (139.3 x 69.6 x 8.5 mm)
6.27 x 2.88 x 0.34 inches (159.3 x 73.1 x 8.6 mm)

Weight:

5.08 oz (144.0 g)
6.53 oz (185.0 g)

Materials:

Back: Metal
Back: Plastic

Biometrics:

Fingerprint (touch)
In-screen fingerprint

Features:

Touch sensitive control keys

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Gold, Gray
Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Cellular

4G (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)

4G (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

3G:

Bands 5(850), 8(900), 1(2100)
Bands 1(2100), 2(1900), 5(850), 8(900)

Data Speed:

LTE, HSPA, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Shared with microSD
Yes

SIM type:

Nano SIM, Micro SIM
Nano SIM

VoLTE:

Yes

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

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.1
5.0

Wi-Fi:

802.11 b, g, n; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging
Charging, OTG

Location:

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

Infrared, Tethering, Computer sync, OTA sync
NFC

Phone features

Notifications:

Haptic feedback

Other features:

Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Mar 08, 2020

FCC ID value:

A3LSMA315GL

Measured SAR:

Head:

0.62 W/kg
0.53 W/kg

Body:

0.43 W/kg
0.56 W/kg

Simultaneous Transmission:

1.42 W/kg

Wireless Router:

0.65 W/kg

Phablet:

0.89 W/kg

Buyers information

Price:

€ 300

In The Box:

Power adapter, USB 2.0 cable, warranty card, user guide, SIM insertion tool

Availability

Officially announced:

Jun 15, 2016
Mar 24, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless