Compare: Samsung Galaxy A3 (2017) vs Samsung Galaxy A31
General Features
-
4.7"Super AMOLED
-
13MPSingle camera
-
2GB RAMExynos 7870 Octa
-
2350 mAhLi-Ion
Pros
Low sar value (USA)
SD Card area available
FM Radio support
NFC support
Cons
HD+ Screen
Brand
Samsung
Announced
Jan 2, 2017
Release Date
Jan 13, 2017
Status
Available
Out Price
About 220 EUR
Display
Type
Super AMOLED
Aspect Ratio and PPI
16:9 ratio - 312 ppi density
Size
4.7 inches, 60.9 cm2 (~67.9% screen-to-body ratio)
Resolution
720 x 1280 pixels
Peak brightness (nit)
Protection
Corning Gorilla Glass 4
Features
Always-on display
BODY
Colors
Black Sky
Gold Sand
Blue Mist
Peach Cloud
Dimensions
135.4 x 66.2 x 7.9 mm (5.33 x 2.61 x 0.31 in)
Weight
138 gr (4.87 oz)
Material
Back: Glass
Frame: Aluminum
Frame: Aluminum
Certification
IP68
Waterproof
Yes
Sensors
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
3.5mm Jack
Yes
NFC
Yes
Infrared
USB Type
2.0, Type-C 1.0 reversible connector
Loudspeaker Loudness (dB)
PLATFORM
Chipset
Samsung Exynos 7 Octa 7870
CPU
Octa-core 1.6 GHz Cortex-A53
Bits
64Bit
Cores
8
Process technology
14 nm
GPU
Mali-T830 MP1
GPU Cores
2
GPU Frequency
OS
Android 6.0.1 (Marshmallow), upgradable to Android 8.0 (Oreo)
MEMORY
RAM Capacity
2GB
RAM Type
LPDDR3
Storage
16GB
SD Card Slot
microSD, up to 256 GB (uses shared SIM slot) - dual SIM model only
PERFORMANCE SCORES
Antutu Score
45k
Antutu
Geek Bench Score
705
GeekBench
Single Score
3431
Multi Score
2530
Battery Score
BATTERY
Capacity
2350
Type
Li-Ion
Quick Charge Technology
Video Playback Time
17 hours
Fast Charging
Wireless Charging
Main Camera
First Camera
Resolution
Sensor
Aperture
f/1.9
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Fourth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Fifth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Sixth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Image Resolution
4128 x 3096 pixels, 12.78 MP
Video Resolution and FPS
1920x1080 (Full) - (30 fps)
Optical Stabilisation (OIS)
No
Electronic Stabilisation (EIS)
Slow Motion Video
Yes
Features
DxOMark Score
Mobile Score (Rear)
Mobile
Selfie Score
Selfie
Selfie Camera
First Camera
Resolution
8 MP
Sensor
Aperture
f/1.9
Pixel Size
Sensor Size
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Video Resolution and FPS
null
Features
CONNECTIVITY
Technology
GSM / HSPA / LTE
2G Bands
GSM - 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Bands
HSDPA - 850 / 900 / 1900 / 2100
4G Bands
B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B20 (800), B38 (TDD 2600), B40 (TDD 2300)
5G Bands
TD-SCDMA
Navigation
Yes, with A-GPS, GLONASS
Network Speed
HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
SIM Card Type
Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Number of SIM Area
1
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetooth
4.2, A2DP, LE
OTHERS
VoLTE
Yes
FM Radio
Yes
SAR The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue.
Body SAR (EU)
1.38 W/kg
Head SAR (EU)
0.349 W/kg
Body SAR (USA)
0.74 W/kg
Head SAR (USA)
0.86 W/kg
Additional
Extra
Cooling System
HDMI
General Features
-
6.4"Super AMOLED
-
48MPQuad Camera
-
4/6GB RAMHelio P65
-
5000mAhLi-Po
Pros
SD Card area available
Dual sim support
High battery capacity
High megapixel camera
Cons
No FM Radio
Not water resistant
No Infrared
Brand
Samsung
Announced
2020, March 24
Release Date
2020, April
Status
Coming soon
Out Price
Display
Type
Super AMOLED
Aspect Ratio and PPI
20:9 ratio - 411 ppi density
Size
6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio)
Resolution
1080 x 2400 pixels
Peak brightness (nit)
Protection
Features
BODY
Colors
Black
Blue
Red
White
Dimensions
159.3 • 73.1 • 8.6 mm (6.27 • 2.88 • 0.34 in)
Weight
185 gr (6.53 oz)
Material
Certification
Waterproof
No
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
3.5mm Jack
Yes
NFC
No
Infrared
No
USB Type
2.0, Type-C 1.0 reversible connector, USB On-The-Go
Loudspeaker Loudness (dB)
PLATFORM
Chipset
CPU
Octa-core (2x2.0 GHz & 6x1.7 GHz)
Bits
64Bit
Cores
8 Core
Process technology
12 nm
GPU
Mali-G52 MC2
GPU Cores
GPU Frequency
OS
Android 10.0; One UI 2.0
MEMORY
RAM Capacity
64GB / 128GB ROM
RAM Type
Storage
4GB / 6GB RAM
SD Card Slot
microSDXC
PERFORMANCE SCORES
Antutu Score
Antutu
Geek Bench Score
GeekBench
Single Score
BATTERY
Capacity
5000
Type
Li-Po
Quick Charge Technology
Video Playback Time
Fast Charging
Yes, 15W
Wireless Charging
No
Main Camera
First Camera
Resolution
48 MP
Sensor
Aperture
f/2.0
Pixel Size
0.8µm
Sensor Size
1/2.0"
Optical Zoom
Lens
Wide
Extra
PDAF
Second Camera
Resolution
8 MP
Sensor
Aperture
f/2.2
Pixel Size
1.12µm
Sensor Size
1/4.0"
Optical Zoom
Lens
13mm (ultrawide)
Extra
Third Camera
Resolution
5 MP
Sensor
Aperture
f/2.4
Pixel Size
Sensor Size
Optical Zoom
Lens
Macro
Extra
Fourth Camera
Resolution
5 MP
Sensor
Aperture
f/2.4
Pixel Size
Sensor Size
Optical Zoom
Lens
Depth
Extra
Fifth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Sixth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Image Resolution
48 megapixels
Video Resolution and FPS
Optical Stabilisation (OIS)
No
Electronic Stabilisation (EIS)
No
Slow Motion Video
Features
DxOMark Score
Mobile Score (Rear)
Mobile
Selfie Score
Selfie
Selfie Camera
First Camera
Resolution
20 MP
Sensor
Aperture
f/2.2
Pixel Size
Sensor Size
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Video Resolution and FPS
1080p@30fps
Features
CONNECTIVITY
Technology
GSM / HSPA / LTE
2G Bands
GSM - 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Bands
HSDPA - 850 / 900 / 1900 / 2100
4G Bands
LTE (unspecified)
5G Bands
TD-SCDMA
Navigation
Yes, with A-GPS, GLONASS, GALILEO, BDS
Network Speed
HSPA, LTE-A
SIM Card Type
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Number of SIM Area
2 SIM
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE
OTHERS
VoLTE
FM Radio
No
SAR The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue.
Body SAR (EU)
Head SAR (EU)
Body SAR (USA)
Head SAR (USA)
Additional
Extra
Cooling System
No
HDMI