Samsung Galaxy A51 vs Samsung Galaxy A31
Box Price
49999
36999
Kit Price
0
0
USD Price
250
230
Brand
Samsung Mobile
Samsung Mobile
Model No
Galaxy A51
Galaxy A31
Launch Date
2019-12-29
2020-05-01
Technology
GSM / HSPA / LTE
GSM / HSPA / 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 model only)
3G bands
HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100 - SM-A315F
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - SM-A315G
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
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
5G bands
Speed
HSPA 42.2/5.76 Mbps, LTE-A
HSPA 42.2/5.76 Mbps, LTE-A
GPRS
EDGE
Dimensions
158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)
Weight
172 g (6.07 oz)
185 g (6.53 oz)
Build
Glass front (Gorilla Glass 3), plastic back, plastic frame
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
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 White, Prism Crush Blue, Prism Crush Pink
Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Type
Super AMOLED capacitive touchscreen, 16M colors
Super AMOLED capacitive touchscreen, 16M colors
Size
6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)
6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
1080 x 2400 pixels, 20:9 ratio (~411 ppi density)
OS
Android 10, One UI 2.1
Android 10, One UI 2.0
Chipset
Exynos 9611 (10nm)
Mediatek MT6768 Helio P65 (12nm)
CPU
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU
Mali-G72 MP3
Mali-G52 MC2
RAM
6GB/8GB
4GB/6GB
Storage
64GB/128GB
UFS 2.0
128GB Built-in
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
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
12 MP, f/2.2, 123˚ (ultrawide)
8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.4, (macro)
5 MP, f/2.2, (depth)
5 MP, f/2.4, (depth)
Penta
Features
LED flash, panorama, HDR
LED flash, panorama, HDR, Auto Focus, Digital Zoom up to 8x, F2.2
Video
4K@30fps, 1080p@30/120fps; gyro-EIS
1080p@30fps
Single
1
1
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
20 MP, f/2.2, (wide)
Features
HDR
Video
1080p@30fps
1080p@30fps
Capacity
(Li-Po Non removable), 4000 mAh
(Li-Po Non removable), 5000 mAh -
Charging
Fast charging 15W
Fast battery charging 15W
Talk Time
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
ANT+
Fingerprint (under display, optical), 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, GALILEO, BDS
NFC
Yes
Yes (market/region dependent)
Radio
FM radio
FM radio, RDS, recording
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
Performance
Display
Performance AnTuTu: 113051 (v7), 175363 (v8)
GeekBench: 5401 (v4.4), 1294 (v5.1)
GFXBench: 5.6fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal)
Performance AnTuTu: 151815 (v8)
GeekBench: 5096 (v4.4), 1216 (v5.1)
GFXBench: 7fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal)
Camera
Photo / Video
Loudspeaker
-28.6 LUFS (Average)
-30.9 LUFS (Below average)
Audio quality
Noise -93.1dB / Crosstalk -87.3dB
Battery life
Endurance rating 86h
Endurance rating 124h