Samsung Galaxy A31 vs Samsung Galaxy A21

 
Samsung Galaxy A31 Samsung Galaxy A21
TK23,999/- TK16,900/-
Price In Bangladesh
Box Price
Box Price TK 23,999/- TK 16,900/-
USD Price
USD Price $ 313/- $ 199/-
Brand
Brand Samsung Mobiles Samsung Mobiles
Model No
Model No Galaxy A31 Galaxy A21
Launch
Launch Date
Launch Date 2020, May 01 2020, February 01
Website
Website Samsung Galaxy A31 Official Website Samsung Galaxy A21 Official Website
Wikipedia
Wikipedia Samsung Galaxy A21 Wikipedia Samsung Galaxy A21 Wikipedia
Network
Technology
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / 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 only) CDMA 800 / 1900
3G bands
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
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
Speed
Speed HSPA 42.2/5.76 Mbps, LTE-A HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Body
Dimensions
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
Weight 185 g (6.53 oz) 193 g (6.81 oz)
Build
Build Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) Glass front, plastic back, plastic frame
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 Blue, Prism Crush Red, Prism Crush White Black
Display
Type
Type Super AMOLED capacitive touchscreen, 16M colors IPS LCD capacitive touchscreen, 16M colors
Size
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
Resolution 1080 x 2400 pixels, 20:9 ratio (~411 ppi density) 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Platform
OS
OS Android 10, One UI 2.0 Android 10, One UI 2.0
Chipset
Chipset Mediatek MT6768 Helio P65 (12nm) Octa-core (4x2.3 GHz & 4x1.8 GHz)
CPU
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
GPU Mali-G52 MC2 microSDXC (dedicated slot)
Memory
RAM
RAM 4GB/6GB 3GB
Storage
Storage 128GB Built-in 32GB Built-in, eMMC 5.1
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 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)
Features
Features LED flash, panorama, HDR, Auto Focus, Digital Zoom up to 8x, F2.2 LED flash, panorama, HDR
Video
Video 1080p@30fps 1080p@30fps
Selfie Camera
Single
Single 20 MP, f/2.2, (wide) 13 MP, f/2.0, (wide)
Video
Video 1080p@30fps 1080p@30fps
Battery
Capacity
Capacity (Li-Po Non removable), 5000 mAh - Li-Po 4000 mAh, non-removable
Charging
Charging Fast battery charging 15W Fast charging 15W
Smartphone Features
Sensors
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), 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, BDS
NFC
NFC Yes (market/region dependent) Yes (market/region dependent)
Radio
Radio FM radio, RDS, recording Unspecified
USB
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go 2.0, Type-C 1.0 reversible connector
Preformance
Display
Display Performance AnTuTu: 151815 (v8) GeekBench: 5096 (v4.4), 1216 (v5.1) GFXBench: 7fps (ES 3.1 onscreen) Display Contrast ratio: Infinite (nominal)
Loudspeaker
Loudspeaker -30.9 LUFS (Below average)
Battery life
Battery life Endurance rating 124h