Samsung Galaxy A31 vs Oppo A3s

Here we compared two smartphones: the 6.4-inch Samsung Galaxy A31 (with Mediatek Helio P65) that was released on March 24, 2020, against the Oppo A3s, which is powered by Qualcomm Snapdragon 450 and came out 21 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy A31
  • Comes with 770 mAh larger battery capacity: 5000 vs 4230 mAh
  • Modern USB Type-C port
  • Compatible with Wi-Fi 5 wireless networks
  • Newer Bluetooth version (v5)
  • Supports 15W fast charging
  • Delivers 26% higher maximum brightness (636 against 503 nits)
  • More recent OS version: Android 11 versus 8.1
  • Fingerprint scanner
  • Has 2x more RAM: 4GB versus 2GB
  • Has an ultra-wide angle camera lens
  • Super AMOLED display (versus competitor's IPS LCD)
  • The phone is 1-year and 9-months newer
Reasons to consider the Oppo A3s
  • Weighs 17 grams less
We may receive a commission from Amazon for purchases made using the links below, but this has no bearing on our assessment methodology.

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type Super AMOLED IPS LCD
Size 6.4 inches 6.2 inches
Resolution 1080 x 2400 pixels 1080 x 2340 pixels
Aspect ratio 20:9 19.5:9
PPI 411 ppi 409 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Corning Gorilla Glass 5
Screen-to-body ratio 84.9% 81.2%
Display features - Always-On Display -
Display tests
RGB color space 96.8% -
PWM 238 Hz -
Response time 8 ms -
Contrast ∞ Infinity -
Max. Brightness
Galaxy A31 +26%
636 nits
503 nits
Sources: NotebookCheck [3]

Design and build

Height 159.3 mm (6.27 inches) 156.2 mm (6.15 inches)
Width 73.1 mm (2.88 inches) 75.6 mm (2.98 inches)
Thickness 8.6 mm (0.34 inches) 8.2 mm (0.32 inches)
Weight 185 gramm (6.53 oz) 168 gramm (5.93 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors White, Black, Blue, Red Red, Purple
Fingerprint scanner Yes, in-display No
Screen-to-body ratio
84.9%
81.2%

Performance

Tests of Samsung Galaxy A31 and Oppo A3s in the benchmarks
SoC
Chipset Mediatek Helio P65 Qualcomm Snapdragon 450
Max. clock 2000 MHz 2200 MHz
CPU cores 8 (2 + 6) 8 (8)
Architecture - 6 cores at 1.7 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
- 8 cores at 1.8 GHz: Cortex-A53
Lithography process 12 nanometers 14 nanometers
Graphics Mali-G52 MC2 Adreno 506
GPU clock 820 MHz 500 MHz
FLOPS ~56.4 GFLOPS ~124 GFLOPS
Memory
RAM size 4 GB 2 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64, 128 GB 16 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 512 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
1273
n/a
AnTuTu Benchmark 9
169630
n/a
CPU 59563 -
GPU 23368 -
Memory 33868 -
UX 51568 -
Total score 169630 -
3DMark Wild Life Performance
Stability 97% -
Graphics test 3 FPS -
Graphics score 572 -
PCMark 3.0 score 6293 -
Sources: 3DMark [3]

Software

Operating system Android 10 (Can be upgraded to Android 11) Android 8.1
ROM One UI 3.1 ColorOS 5.1
OS size 27 GB -

Battery

Specifications
Capacity 5000 mAh 4230 mAh
Charge power 15 W -
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes, Samsung Adaptive Fast Charge (50% in 60 min) No
Full charging time 2:25 hr 3:15 hr

Battery life tests

Web browsing (Wi-Fi)
16:54 hr
n/a
Watching videos (Player)
20:01 hr
n/a
Talk (3G)
35:56 hr
n/a

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 13 megapixels
Image resolution 8000 x 6000 4128 x 3096
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 30FPS Up to 30FPS
Slow motion No No
Angle of widest lens 123° -
Lenses 4 (48 MP + 8 MP + 5 MP + 5 MP) 2 (13 MP + 2 MP)
Wide (main) lens - 48 MP
- Aperture: f/2.0
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0", Samsung S5KGM2 (ISOCELL CMOS)
- Phase autofocus
- 13 MP
- Aperture: f/2.2
- Pixel size: 1.22 micron
- Sensor: 1/2.6", Sony IMX519 Exmor RS (CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
-
Macro lens - 5 MP
- Aperture: f/2.4
-
Depth lens - 5 MP
- Aperture: f/2.4
- 2 MP
- Aperture: f/2.4
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
Selfie camera
Megapixels 20 megapixels 8 megapixels
Image resolution 5963 x 3354 5760 x 4312
Aperture f/2.2 f/2.2
Pixel size - 1.8 microns
Sensor type CMOS CMOS
Sensor size - 1/2.8"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 4 (802.11 b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 5 4.2
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE, A2DP
USB type USB Type-C Micro USB
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou
NFC* Yes No
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 12 12
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos Yes No
Speakers test
Max. loudness
78.5 dB
n/a

Other

Category Mid-range Budget
Announced March 2020 July 2018
Release date April 2020 August 2018
SAR (head) 0.49 W/kg -
SAR (body) 1.68 W/kg -
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Samsung Galaxy A31 is definitely a better buy.

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