Samsung Galaxy M21 vs Samsung Galaxy M31: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy M21 vs Samsung Galaxy M31. The complete information of specifications to decide which to buy.

Devices

Ki Note

Ki Cost-effectiveness
No price,
no Ki
8.6
Cost-effectiveness
Design & Materials
7.5
7.4
Performance & Hardware
7.3
7.5
Camera
6.8
8.2
Connectivity
6.7
7.8
Battery
9.1
9.1

Basics

Brand

Aliases
SM-M215FZBDTHL, SM-M215FZ
SM-M315F, SM-M315F/DS

Release Date

Release date
March 2020, 20 days ago
February 2020, 1 month ago
State
Presell
Presell

Design & Materials

Structure

Size
75.1 mm
159.0 mm
8.9 mm
75.1 mm
159.2 mm
8.9 mm
Weight
188 g
191 g
Usable surface
84 %
84 %
Materials
Plastic
Plastic
Resistance
-
-
Colors
Black

Blue

Green
Black

Blue

Screen

Diagonal
6.4"
6.4"
Type
Super Amoled
Super Amoled
Aspect Ratio
19.5:9
19.5:9
Resolution
1080 x 2340 px
1080 x 2340 px
Density
403 Pixels per inch
403 Pixels per inch
Others
  • Capacitive
  • Corning Gorilla Glass 3
  • Frameless
  • Infinity-U display
  • Multi-touch
  • Notch
  • Water Drop Notch
  • Peak brightness - 420 cd/m²
  • Capacitive
  • Corning Gorilla Glass 3
  • Frameless
  • Infinity-U display
  • Multi-touch
  • Notch
  • Water Drop Notch
  • Peak brightness - 420 cd/m²

Prototypes





Prototypes
Samsung Galaxy M21
Print 3D Model
Samsung Galaxy M31
Print 3D Model

Photos

Performance & Hardware

Processor

Model
Samsung Exynos 7 Octa 9611
Samsung Exynos 7 Octa 9611
CPU
4x2.3 GHz ARM Cortex-A73+ 4x1.7 GHz ARM Cortex-A53
4x2.3 GHz ARM Cortex-A73+ 4x1.7 GHz ARM Cortex-A53
Type
Octa-Core
Octa-Core
Frequency
2.3 GHz
2.3 GHz
64 Bits
Yes
Yes

Graphics

GPU
ARM Mali-G72 MP3
ARM Mali-G72 MP3

RAM

RAM
4 GB
6 GB
Type
LPDDR4X RAM
LPDDR4X RAM

Antutu

Score
180.011 (Antutu v8)
Overall performance better than 83% of devices
180.011 (Antutu v8)
Overall performance better than 83% of devices

Storage

Capacity
64 GB
128 GB
Type
eMMC 5.1 Storage
eMMC 5.1 Storage
SD Slot
Yes
Independent SD slot
Yes
Independent SD slot

Security

Fingerprint
Yes, in the back
Yes, in the back

Sensors

Sensors
  • Fingerprint
  • Accelerometer
  • Compass
  • Geomagnetic
  • Gyroscope
  • Proximity
  • Fingerprint
  • Accelerometer
  • Compass
  • Geomagnetic
  • Gyroscope
  • Proximity

Others

Notifications LED
--
--
Cooling system
No
No
Gaming buttons
No
No

Camera

Triple rear camera

Standard
1
Resolution
48 Mpx
Sensor
Samsung
Type
CMOS
Aperture
ƒ/ 2.0
ISO
--
Pixel size
--
Wide Angle lens
2
Resolution
8 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.2
ISO
--
Pixel size
--
Portrait mode (depth)
3
Resolution
5 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.2
ISO
--
Pixel size
--

Quad rear camera

Standard
1
Resolution
64 Mpx
Sensor
Samsung Bright S5KGW1
Type
ISOCELL
Aperture
ƒ/ 1.8
ISO
100 - 800
Pixel size
0.80 µm
Sensor size
1/1.72
Wide Angle lens
2
Resolution
8 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.2
ISO
--
Pixel size
--
Portrait mode (depth)
3
Resolution
5 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.2
ISO
--
Pixel size
--
Macro lens
4
Resolution
5 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.2
ISO
--
Pixel size
--
Flash
LED
LED
Features
  • 4K Video
  • Autofocus
  • Continuous shooting
  • Digital zoom
  • Exposure compensation
  • Face detection
  • Geotagging
  • HDR
  • ISO settings
  • Scene mode
  • Self-timer
  • Touch focus
  • Triple camera
  • White balance settings
  • 4K Video
  • Autofocus
  • Continuous shooting
  • Digital zoom
  • Exposure compensation
  • Face detection
  • Geotagging
  • HDR
  • ISO settings
  • Quadruple camera
  • Scene mode
  • Self-timer
  • Touch focus
  • White balance settings
Slow Motion Video
Yes
240 fps
No
30 fps
Optical Stabilisation
No
No

Selfie

Resolution
20 Mpx
Sensor
Unknown
Type
CMOS
Aperture
ƒ/ 2.2
ISO
--
Pixel size
--
Resolution
32 Mpx
Sensor
Sony IMX616
Type
CMOS
Aperture
ƒ/ 2.0
ISO
--
Pixel size
0.80 µm
Sensor size
1/2.8
Features
-
-

Connectivity

Networks

5G
-
-
4G LTE
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B20 (800)
  • B26 (850)
  • B28 (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
3G
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card

Dual SIM
Dual Sim Dual Standby
Dual Sim Dual Standby
Type
Nano SIM
Nano SIM
Nano SIM
Nano SIM

Wi-Fi

Wi-Fi
  • 802.11a
  • 802.11ac
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11a
  • 802.11ac
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
Others
  • Dual band
  • Wi-Fi Direct
  • Wi-Fi Hotspot
  • Dual band
  • Wi-Fi Direct
  • Wi-Fi Hotspot

Bluetooth

Version
Bluetooth 5.0
Bluetooth 5.0
Others
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HOGP
  • HSP (Headset Profile)
  • MAP (Message Access Profile)
  • OPP (Object Push Profile)
  • PAN (Personal Area Networking Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HOGP
  • HSP (Headset Profile)
  • MAP (Message Access Profile)
  • OPP (Object Push Profile)
  • PAN (Personal Area Networking Profile)
  • PBAP/PAB (Phone Book Access Profile)

Navigation

Navigation
  • A-GPS
  • Beidou
  • Galileo
  • GLONASS
  • GPS
  • A-GPS
  • Beidou
  • GLONASS
  • GPS

USB

USB
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C

SAR

European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

0.468 W/Kg on head
-- W/Kg on body
0.482 W/Kg on head
1.127 W/Kg on body
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

--
--

Others

Others
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • Audio Jack
  • Radio FM
  • ANT+
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE

Battery

Battery
Capacity
6000 mAh
6000 mAh
Type
Li-Ion
Li-Ion
Fast charge
Yes, 15.0W
Yes, 15.0W
Others
  • Non-removable
  • Non-removable

Software

Software
Operating System
Android 10
Android 10

Prices

Prices unavailable

Prices