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Samsung Galaxy A51 vs Samsung Galaxy A31

 
Samsung Galaxy A51 Samsung Galaxy A31
TK27,499/- TK23,999/-
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