Samsung Galaxy A20 vs Galaxy A02s

Here we compared two smartphones: the 6.4-inch Samsung Galaxy A20 (with Exynos 7 Octa 7884) that was released on March 18, 2019, against the Samsung Galaxy A02s, which is powered by Qualcomm Snapdragon 450 and came out 21 months after. 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 A20
  • 39% better performance in AnTuTu Benchmark (136K versus 98K)
  • Newer Bluetooth version (v5)
  • Fingerprint scanner
  • Has an ultra-wide angle camera lens
  • Super AMOLED display (versus competitor's PLS TFT)
  • 83% faster in single-core GeekBench 5 test: 240 and 131 points
  • Weighs 27 grams less
Reasons to consider the Samsung Galaxy A02s
  • Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
  • More recent OS version: Android 12 versus 11
  • The phone is 1-year and 9-months newer

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

Display

Type Super AMOLED PLS TFT
Size 6.4 inches 6.5 inches
Resolution 720 x 1560 pixels 720 x 1600 pixels
Aspect ratio 19.5:9 20:9
PPI 268 ppi 270 ppi
Refresh rate 60 Hz 60 Hz
Max rated brightness 400 nits 400 nits
HDR support No No
Screen protection Corning Gorilla Glass 3 Tempered glass
Screen-to-body ratio 85% 81.8%
Display tests
RGB color space - 95.5%
Response time - 37 ms
Contrast - 1095:1
Peak brightness test (auto)
454 nits
Sources: NotebookCheck [3]

Design and build

Height 158.4 mm (6.24 inches) 164.2 mm (6.46 inches)
Width 74.7 mm (2.94 inches) 75.9 mm (2.99 inches)
Thickness 7.8 mm (0.31 inches) 9.1 mm (0.36 inches)
Weight 169 gramm (5.96 oz) 196 gramm (6.91 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors - White, Black
Fingerprint scanner Yes, rear No
Screen-to-body ratio
85%
81.8%

Performance

Tests of Samsung Galaxy A20 and Samsung Galaxy A02s in the benchmarks
SoC
Chipset Samsung Exynos 7 Octa 7884 Qualcomm Snapdragon 450
Max. clock 1600 MHz 1800 MHz
CPU cores 8 (2 + 6) 8 (8)
Architecture - 6 cores at 1.35 GHz: Cortex-A53
- 2 cores at 1.6 GHz: Cortex-A73
- 8 cores at 1.8 GHz: Cortex-A53
Lithography process 14 nanometers 14 nanometers
Graphics Mali-G71 MP2 Adreno 506
GPU clock 850 MHz 720 MHz
FLOPS ~64 GFLOPS ~124 GFLOPS
Memory
RAM size 3 GB 3 GB
Memory type LPDDR3 LPDDR3
Memory clock 933 MHz 933 MHz
Channels 1 1
Storage
Storage size 32 GB 32 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 512 GB Up to 1024 GB

Benchmarks

Geekbench 5 (Single-Core)
Galaxy A20 +83%
240
Geekbench 5 (Multi-Core)
Galaxy A20 +74%
855
AnTuTu Benchmark 9
Galaxy A20 +39%
136924
98482
CPU 48062 29781
GPU 20723 14379
Memory 31990 29514
UX 37339 24907
Total score 136924 98482
3DMark Wild Life Performance
Stability 85% -
Graphics test 1 FPS -
Graphics score 324 -
Sources: 3DMark [3]

Software

Operating system Android 9.0 (Can be upgraded to Android 11) Android 10.0 (Can be upgraded to Android 12)
ROM One UI 3.1 One UI Core 4.1
OS size - 15 GB

Battery

Specifications
Capacity 4000 mAh 5000 mAh
Charge power 15 W 15 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes, Samsung Adaptive Fast Charge (25% in 30 min) Yes (30% in 30 min)
Full charging time 2:00 hr 2:36 hr
Battery life tests
Web browsing - 14:46 hr
Watching video - 14:37 hr
Gaming - 06:05 hr
Standby - 131 hr
General battery life
38:50 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 13 megapixels 13 megapixels
Image resolution 4128 x 3096 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 2 (13 MP + 5 MP) 3 (13 MP + 2 MP + 2 MP)
Wide (main) lens - 13 MP
- Aperture: f/1.9
- Focal length: 28 mm
- Phase autofocus
- 13 MP
- Aperture: f/1.8
- Phase autofocus
Ultra-wide lens - 5 MP
- Aperture: f/2.2
- Focal length: 12 mm
-
Macro lens - - 2 MP
- Aperture: f/2.4
Depth lens - - 2 MP
- Aperture: f/2.4
Camera features - - Bokeh mode
Selfie camera
Megapixels 8 megapixels 5 megapixels
Image resolution 3264 x 2448 2560 x 1960
Aperture f/2.0 f/2.2
Sensor type CMOS CMOS
Video resolution 720p at 30 FPS 720p at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 4 (802.11 b/g/n) Wi-Fi 4 (802.11 b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- 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 USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- Charging
- USB-Storage mode
GPS GPS, GLONASS, Beidou GPS, GLONASS, Beidou, Galileo
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* 4 4
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos Yes Yes
Speakers test
Max. loudness

Other

Category Mid-range Budget
Announced March 2019 November 2020
Release date March 2019 January 2021
SAR (head) 0.23 W/kg 0.4 W/kg
SAR (body) 1.38 W/kg 1.37 W/kg
Sensors - Hall-effect sensor
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Accelerometer
- Ambient light sensor
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the display, battery life, and camera are more important to you, then choose the Samsung Galaxy A02s. But if the performance and connectivity are more of a priority – go for the Samsung Galaxy A20.

Cast your vote

So, which phone would you choose?
49 (52.7%)
44 (47.3%)
Total votes: 93

User opinions

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