Phone Comparison - Samsung Galaxy A31 vs Samsung Galaxy A21 vs Samsung Galaxy A32

general General Info

Manufacturer Samsung Samsung Samsung
Announced 2020, March 24 2020, April 8 February 2021
Status Coming Soon - April 2020 Coming soon. Exp. release 2020, April Available - February 2021
Colors Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White Various Awesome Black, Awesome White, Awesome Blue, Awesome Violet
Form Factor Candybar Candybar Candybar
Dimension 159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
- 158.9 x 73.6 x 8.4 mm
(6.26 x 2.9 x 0.33 in)
Weight 185 g (6.53 oz) - 184 g (6.49 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Hybrid Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE (unspecified) LTE LTE
SAR EU - W/kg (head)
- W/kg (body)
- W/kg (head)
- W/kg (body)
0.45 W/kg (head)
1.30 W/kg (body)
Messaging
Build Features - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor
Glass front, plastic back, plastic frame
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

OS Android 10.0 Android 10.0 Android 11
User Interface One UI 2.0 One UI 2.0 One UI 3.0
Processor Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55), Mediatek Helio G80 (12 nm)
GPU Mali-G52 MC2 PowerVR GE8320 Mali-G52 MC2
RAM 6 GB 3 GB 8 GB
Internal Memory 128 GB 64 GB 128 GB
External Memory microSDXC microSDXC (dedicated slot) microSDXC (uses shared SIM slot)

display Display

Type Super AMOLED Capacitive Touchscreen HD+ Super AMOLED Capacitive Touchscreen Super AMOLED
90Hz Refresh Rate
800 nits (peak)
Corning Gorilla Glass 5
Colors 16M colors 16M colors 16M Colour
Size 6.4 inches 6.5 inches 6.4 inches
Resolution 1080 x 2400 pixels (411 ppi) 720 x 1600 pixels (270 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio 85.01% - 84.65%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio - FM radio Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 48 MP + 8 MP + 5 MP + 5 MP 16 MP + 8 MP + 2 MP + 2 MP 64 MP + 8 MP + 5 MP + 5 MP
Flash LED flash No No
Features 48 MP, f/2.0, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.4, (depth)
panorama, HDR
16 MP, f/1.9, 28mm (wide), AF
8 MP, f/2.2, 12mm (ultrawide)
2 MP, (macro)
2 MP, (depth)
panorama, HDR
64 MP, f/1.8, 26mm (wide), PDAF
8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.4, (depth)
panorama, HDR
Video 1080p@30fps 1080p@30fps 4K@30fps, 1080p@30/120fps
Front Camera 20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]
13 MP
HDR
1080p@30fps [Similar]
20 MP, f/2.2, 0.8µm
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth 5.0, A2DP, LE 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 b/g/n, 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, USB On-The-Go 2.0, Type-C 1.0 reversible connector, USB On-The-Go USB Type-C 2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, GALILEO, 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 (UFS 2.1) 64 GB, 3 GB RAM eMMC 5.1 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 4 GB RAM
Expandable Storage microSDXC microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
USB OTG Supported Supported Supported

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 not present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 5000 mAh 4000 mAh 5000 mAh
Stand by - - -
Talk Time - - -