Samsung Galaxy A31 vs Xiaomi Redmi Note 7

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$249 VIEW ON AMAZON
$190 VIEW ON AMAZON

Display

Size

6.4 inches
6.3 inches

Resolution

2400 x 1080 pixels, 20:9 ratio,
411 PPI
2340 x 1080 pixels, 19.5:9 ratio,
409 PPI

Technology

Super AMOLED
IPS LCD

Screen-to-body

84.88 %
81.37 %

Features

Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

MediaTek Helio P65 MT6768
Qualcomm Snapdragon 660 SDM660

Processor

Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm
Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm

GPU

Mali-G52 MC2
Adreno 512

RAM

4GB LPDDR4
4GB LPDDR4

Internal storage

64GB
128GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 256 GB

OS

Android (10), Samsung One UI
Android (9.0 Pie)

Battery

Capacity

5000 mAh
4000 mAh

Type

Not user replaceable
Not user replaceable

Charging

Fast charging
Qualcomm Quick Charge 4

Stand-by time (hours)

 
251 hours

Camera

Rear

Quad camera
Dual camera

Main camera

48 MP (PDAF)
48 MP (PDAF, CMOS image sensor, BSI sensor)

Specifications

Aperture size: F2.0; Pixel size: 0.8 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

8 MP (Ultra-wide)
5 MP (Depth information)

Specifications

Aperture size: F2.2
Aperture size: F2.4

Third camera

5 MP (Macro)
 

Specifications

Aperture size: F2.4
 

Fourth camera

5 MP (Depth information)
 

Specifications

Aperture size: F2.4
 

Video recording

1920x1080 (Full HD)
1920x1080 (Full HD) (120 fps), 1280x720 (HD) (120 fps)

Features

 
Continuous autofocus, EIS, Video calling, Video sharing

Front

20 MP
13 MP (HDR)

Design

Dimensions

6.27 x 2.88 x 0.34 inches (159.3 x 73.1 x 8.6 mm)
6.27 x 2.96 x 0.32 inches (159.21 x 75.21 x 8.1 mm)

Weight

6.53 oz (185 g)
the average is 6.5 oz (184 g)
6.56 oz (186 g)
the average is 6.5 oz (184 g)

Materials

Back: Plastic
Back: Glass (Corning Gorilla Glass 5)

Biometrics

In-screen fingerprint
2D Face unlock, Fingerprint (touch)

Colors

Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white
Black, Blue, Red

Cellular

LTE (FDD)

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

LTE (TDD)

 
Bands 38(2600), 40(2300)

UMTS

 
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

Multimedia

Headphones

 
3.5mm jack

Features

 
Album art cover, Background playback

Connectivity & Features

Bluetooth

Yes
5.0

Wi-Fi

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

USB

Type-C (reversible)
Type-C (reversible)

Features

Charging
Mass storage device, Charging

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other

 
Infrared, VoIP, Tethering, Computer sync, OTA sync

Phone features

Notifications

 
Haptic feedback, Music ringtones, Vibration

Other features

 
Voice dialing, Voice commands, Voice recording

Shopping information

In The Box

 
Adapter, USB Cable type C, Tool to remove the SIM, User manual, Housing, Warranty
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