Price In Bangladesh |
Box Price |
Box Price |
TK 27,499/- |
TK 23,999/- |
USD Price |
USD Price |
$ 250/- |
$ 313/- |
Brand |
Brand |
Samsung Mobile |
Samsung Mobile |
Model No |
Model No |
Galaxy A51 |
Galaxy A31 |
Launch |
Launch Date |
Launch Date |
2019, December 29 |
2020, May 01 |
Website |
Website |
Samsung Galaxy A51 Official Website |
Samsung Galaxy A31 Official Website |
Wikipedia |
Wikipedia |
Samsung Galaxy A31 Wikipedia |
Samsung Galaxy A31 Wikipedia |
Network |
Technology |
Technology |
GSM / HSPA / LTE |
GSM / HSPA / LTE |
2G bands |
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 |
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 |
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 |
Speed |
Speed |
HSPA 42.2/5.76 Mbps, LTE-A |
HSPA 42.2/5.76 Mbps, LTE-A |
Body |
Dimensions |
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 |
Weight |
172 g (6.07 oz) |
185 g (6.53 oz) |
Build |
Build |
Glass front (Gorilla Glass 3), plastic back, plastic frame |
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
SIM |
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 |
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 |
Display |
Type |
Type |
Super AMOLED capacitive touchscreen, 16M colors |
Super AMOLED capacitive touchscreen, 16M colors |
Size |
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 |
Resolution |
1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
1080 x 2400 pixels, 20:9 ratio (~411 ppi density) |
Platform |
OS |
OS |
Android 10, One UI 2.1 |
Android 10, One UI 2.0 |
Chipset |
Chipset |
Exynos 9611 (10nm)
|
Mediatek MT6768 Helio P65 (12nm) |
CPU |
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 |
GPU |
Mali-G72 MP3
|
Mali-G52 MC2 |
Memory |
RAM |
RAM |
6GB/8GB |
4GB/6GB |
Storage |
Storage |
64GB/128GB
UFS 2.0
|
128GB Built-in |
Card Slot |
Card Slot |
microSDXC (dedicated slot) |
microSDXC (dedicated slot) |
Main Camera |
Quad |
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) |
Features |
Features |
LED flash, panorama, HDR
|
LED flash, panorama, HDR, Auto Focus, Digital Zoom up to 8x, F2.2 |
Video |
Video |
4K@30fps, 1080p@30/120fps; gyro-EIS
|
1080p@30fps |
Selfie Camera |
Single |
Single |
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
|
20 MP, f/2.2, (wide) |
Features |
Features |
HDR
|
|
Video |
Video |
1080p@30fps
|
1080p@30fps |
Battery |
Capacity |
Capacity |
(Li-Po Non removable), 4000 mAh |
(Li-Po Non removable), 5000 mAh - |
Charging |
Charging |
Fast charging 15W
|
Fast battery charging 15W |
Smartphone Features |
Sensors |
Sensors |
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
ANT+ |
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
Sound |
Loudspeaker |
Loudspeaker |
Yes |
Yes
|
3.5mm jack |
3.5mm jack |
Yes |
Yes
|
Connectivity |
WLAN |
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 |
Bluetooth |
5.0, A2DP, LE
|
5.0, A2DP, LE
|
GPS |
GPS |
Yes, with A-GPS, GLONASS, GALILEO, BDS
|
Yes, with A-GPS, GLONASS, GALILEO, BDS
|
NFC |
NFC |
Yes
|
Yes (market/region dependent)
|
Radio |
Radio |
FM radio
|
FM radio, RDS, recording
|
USB |
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 |
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 |
Camera |
Photo / Video |
|
Loudspeaker |
Loudspeaker |
-28.6 LUFS (Average) |
-30.9 LUFS (Below average) |
Audio quality |
Audio quality |
Noise -93.1dB / Crosstalk -87.3dB |
|
Battery life |
Battery life |
Endurance rating 86h |
Endurance rating 124h |