Comparisons / Comparison of Samsung Galaxy A31 and Samsung Galaxy A8 Star (A9 Star)

Comparison of Samsung Galaxy A31 and Samsung Galaxy A8 Star (A9 Star) [S]ave

Attribute
Samsung Galaxy A31
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Samsung Galaxy A8 Star (A9 Star)
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General
BrandSamsungSamsung
Launch
Announced2020-03-242018-06-01
Body
Width (mm)8.67.6
Length (mm)159.3162.4
Height (mm)73.177
Weight (g)185191
SIMSingle SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM, dual stand-by)
Front-Glass
Back-Glass
Frame-Aluminum
Network
Technology
  • GSM
  • HSPA
  • LTE
  • CDMA
  • GSM
  • HSPA
  • LTE
2G bands
  • GSM 850 / 900 / 1800 / 1900
  • CDMA 800 & TD
  • GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
  • HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
  • HSDPA 850 / 900 / 1900 / 2100 - SM-A315F
  • HSDPA 850 / 900 / 1900 / 2100
4G bands
  • 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 40, 41, 66
  • 1, 2, 3, 5, 7, 8, 20, 38, 40, 41 - SM-A315F
  • 1, 3, 4, 5, 7, 8, 12, 17, 34, 38, 39, 40, 41 - Global
  • 1, 3, 8, 34, 38, 39, 40, 41
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
Platform
OSAndroid 10Android 8.0 (Oreo)
ChipsetMediatek MT6768 Helio P65 (12nm)Qualcomm SDM660 Snapdragon 660 (14 nm)
CPUOcta-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPUMali-G52 MC2Adreno 512
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (uses shared SIM slot)
Internal
  • 128GB 4GB RAM
  • 128GB 6GB RAM
  • 128GB 8GB RAM
  • 64GB 4GB RAM
  • 64GB 4GB RAM
  • 64GB 6GB RAM
Display
Size (in)6.46.3
Resolution (px)1080 x 24001080 x 2220
Protection-Corning Gorilla Glass 5
Display TypeSuper AMOLEDSuper AMOLED
Battery
TypeLi-PoLi-Ion
ChargingFast charging 15WFast charging 15W
Capcity (mAh)50003700
Main Camera
Main Camera TypeQuadDual
Main Camera Properties
  • 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
  • 5 MP, f/2.4, (depth)
  • 5 MP, f/2.4, (macro)
  • 8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm
  • 16 MP, f/1.7, PDAF
  • 24 MP, f/1.7, 27mm (wide), 1/2.8", 0.9µm, PDAF
Main Camera Video1080p@30fps4K@30fps, 1080p@30fps
Main Camera FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Selfie Camera
Selfie Camera TypeSingleSingle
Selfie Camera Properties
  • 20 MP, f/2.2, (wide)
  • 24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm
Selfie Camera Video1080p@30fps1080p@30fps
Comms
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
GPS++
NFC++
RadioFM radio, RDS, recordingFM radio
USBUSB Type-C 2.0, USB On-The-GoUSB Type-C 2.0
Sound
Loudspeaker++
3.5mm jack++
Features
Sensors
  • Fingerprint (under display
  • accelerometer
  • compass
  • gyro
  • optical)
  • proximity
  • Fingerprint (rear-mounted)
  • accelerometer
  • compass
  • gyro
  • proximity
Misc
Colors
  • Prism Crush Black
  • Prism Crush Blue
  • Prism Crush Red
  • Prism Crush White
  • Black
  • White
Models
  • SM-A315F
  • SM-A315F/DS
  • SM-A315G
  • SM-A315G/DS
  • SM-A315N
  • SM-G8850
  • SM-G885F
  • SM-G885Y
SAR EU Head (W/kg)0.490.43
SAR EU Body (W/kg)1.681.79



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