Samsung Galaxy A31 vs Samsung Galaxy A21
Box Price
36999
34999
Kit Price
0
0
USD Price
230
199
Brand
Samsung Mobile
Samsung Mobile
Model No
Galaxy A31
Galaxy A21
Launch Date
2020-05-01
2020-02-01
Technology
GSM / HSPA / LTE
GSM / CDMA / HSPA / EVDO / LTE
2G bands
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)
CDMA 800 / 1900
3G bands
HSDPA 850 / 900 / 1900 / 2100 - SM-A315F
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - SM-A315G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
CDMA2000 1xEV-DO
4G bands
1, 2, 3, 5, 7, 8, 20, 38, 40, 41 - SM-A315F
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 40, 41, 66 - SM-A315G
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - USA
5G bands
Speed
HSPA 42.2/5.76 Mbps, LTE-A
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
GPRS
EDGE
Dimensions
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)
167.8 x 76.7 x 8.1 mm (6.61 x 3.02 x 0.32 in)
Weight
185 g (6.53 oz)
193 g (6.81 oz)
Build
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Glass front, plastic back, plastic frame
SIM
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Colors
Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Black
Type
Super AMOLED capacitive touchscreen, 16M colors
IPS LCD capacitive touchscreen, 16M colors
Size
6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio)
6.5 inches, 102.0 cm2 (~79.3% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~411 ppi density)
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
OS
Android 10, One UI 2.0
Android 10, One UI 2.0
Chipset
Mediatek MT6768 Helio P65 (12nm)
Octa-core (4x2.3 GHz & 4x1.8 GHz)
CPU
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
Octa core (2 x 1.8 GHz Cortex A73 + 6x 1.6 GHz Cortex A53)
GPU
Mali-G52 MC2
microSDXC (dedicated slot)
RAM
4GB/6GB
3GB
Storage
128GB Built-in
32GB Built-in,
eMMC 5.1
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
4
4
Single
Double
Triple
Quad
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
16 MP, f/1.8, (wide), 1/3.06", 1.0µm, PDAF
8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm
8 MP, f/2.2, (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
2 MP, f/2.4, (macro)
5 MP, f/2.4, (depth)
2 MP, f/2.4, (depth)
Penta
Features
LED flash, panorama, HDR, Auto Focus, Digital Zoom up to 8x, F2.2
LED flash, panorama, HDR
Video
1080p@30fps
1080p@30fps
Single
1
1
20 MP, f/2.2, (wide)
13 MP, f/2.0, (wide)
Features
Video
1080p@30fps
1080p@30fps
Capacity
(Li-Po Non removable), 5000 mAh -
Li-Po 4000 mAh, non-removable
Charging
Fast battery charging 15W
Fast charging 15W
Talk Time
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Loudspeaker
Yes
Yes
3.5mm jack
Yes
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS
Yes, with A-GPS, GLONASS, BDS
NFC
Yes (market/region dependent)
Yes (market/region dependent)
Radio
FM radio, RDS, recording
Unspecified
USB
2.0, Type-C 1.0 reversible connector, USB On-The-Go
2.0, Type-C 1.0 reversible connector
Performance
Display
Performance AnTuTu: 151815 (v8)
GeekBench: 5096 (v4.4), 1216 (v5.1)
GFXBench: 7fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal)
Camera
Loudspeaker
-30.9 LUFS (Below average)
Audio quality
Battery life
Endurance rating 124h