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Samsung Galaxy A21s vs Galaxy A20s

Here we compared two smartphones: the 6.5-inch Samsung Galaxy A21s (with Exynos 850) that was released on May 15, 2020, against the Samsung Galaxy A20s, which is powered by Qualcomm Snapdragon 450 and came out 7 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 A21s
  • Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
  • 39% better performance in AnTuTu Benchmark (125K versus 90K)
  • Compatible with Wi-Fi 5 wireless networks
  • Newer Bluetooth version (v5)
  • Delivers 29% higher maximum brightness (498 against 386 nits)
  • More energy-efficient CPU – Exynos 850
  • 27% faster in single-core GeekBench 5 test: 190 and 150 points
  • The phone is 7-months newer
  • The front-facing camera can record video at 1080p
Reasons to consider the Samsung Galaxy A20s
  • Slow-motion recording at 120FPS

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 PLS TFT IPS LCD
Size 6.5 inches 6.5 inches
Resolution 720 x 1600 pixels 720 x 1560 pixels
Aspect ratio 20:9 19:9
PPI 270 ppi 259 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Tempered glass
Screen-to-body ratio 82.8% 83.3%
Display tests
RGB color space 88.4% 94.5%
PWM 500 Hz -
Response time 30.4 ms 36 ms
Contrast 1500:1 914:1
Max. Brightness
498 nits
386 nits
Sources: NotebookCheck [1], [2]

Design and build

Height 163.6 mm (6.44 inches) 163.3 mm (6.43 inches)
Width 75.3 mm (2.96 inches) 77.5 mm (3.05 inches)
Thickness 8.9 mm (0.35 inches) 8 mm (0.31 inches)
Weight 192 gramm (6.77 oz) 183 gramm (6.46 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Black, Blue, Red Black, Blue, Green, Red
Fingerprint scanner Yes, rear Yes, rear
Screen-to-body ratio
82.8%
83.3%

Performance

Tests of Samsung Galaxy A21s and Samsung Galaxy A20s in the benchmarks
SoC
Chipset Samsung Exynos 850 Qualcomm Snapdragon 450
Max. clock 2000 MHz 1800 MHz
CPU cores 8 (8) 8 (8)
Architecture - 8 cores at 2 GHz: Cortex-A55 - 8 cores at 1.8 GHz: Cortex-A53
Lithography process 8 nanometers 14 nanometers
Graphics Mali-G52 MP1 Adreno 506
GPU clock 820 MHz 650 MHz
FLOPS ~26 GFLOPS ~124 GFLOPS
Memory
RAM size 3, 4 GB 3 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1333 MHz
Channels 2 1
Storage
Storage size 32, 64 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 512 GB

Benchmarks

Geekbench 5 (Single-Core)
190
Geekbench 5 (Multi-Core)
1117
AnTuTu Benchmark 7
AnTuTu Benchmark 8
125696
90310

Software

Operating system Android 10 (Can be upgraded to Android 11) Android 9.0 (Can be upgraded to Android 11)
ROM One UI 3.0 One UI 3.1
OS size 12 GB 11 GB

Battery

Specifications
Capacity 5000 mAh 4000 mAh
Charge power 15 W 15 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes (50% in 60 min) Yes (50% in 40 min)
Full charging time 2:10 hr 2:20 hr

Battery life tests

Web browsing (Wi-Fi)
18:02 hr
Watching videos (Player)
17:29 hr
Talk (3G)
39:38 hr

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 120 FPS (720p)
Angle of widest lens 123° 123°
Lenses 4 (48 MP + 8 MP + 2 MP + 2 MP) 3 (13 MP + 8 MP + 5 MP)
Wide (main) lens - 48 MP
- Aperture: f/2.0
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0" (CMOS)
- Phase autofocus
- 13 MP
- Aperture: f/1.8
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
- 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
Macro lens - 2 MP
- Aperture: f/2.4
-
Depth lens - 2 MP
- Aperture: f/2.4
- 5 MP
- Aperture: f/2.2
Camera features - Bokeh mode - Bokeh mode
- Pro mode
Selfie camera
Megapixels 13 megapixels 8 megapixels
Image resolution 4128 x 3096 3264 x 2448
Aperture f/2.2 f/2.0
Pixel size 1.12 microns -
Sensor type CMOS CMOS
Sensor size 1/3.1" -
Video resolution 1080p (Full HD) при 30 FPS 720p при 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
- Wi-Fi Display
- 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
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo 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* 13 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
79.5 dB
81.5 dB

Other

Category Budget Mid-range
Announced May 2020 September 2019
Release date June 2020 October 2019
Launch price ~ 200 USD ~ 175 USD
SAR (head) 0.23 W/kg 0.35 W/kg
SAR (body) 1.38 W/kg 0.83 W/kg
Sensors - Hall-effect sensor
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*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 A21s is definitely a better buy.

Cast your vote

So, which phone would you choose?
118 (81.9%)
26 (18.1%)
Total votes: 144

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