Samsung Galaxy A21s vs A15 5G

Here we compared two budget smartphones: the 6.5-inch Samsung Galaxy A21s (with Exynos 850) that was released on May 15, 2020, against the Samsung Galaxy A15 5G, which is powered by MediaTek Dimensity 6100 Plus and came out 3 years and 8 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy A21s
  • Shows 10% longer battery life (25:00 vs 22:46 hours)
Reasons to consider the Samsung Galaxy A15 5G
  • 2x better performance in AnTuTu Benchmark (507K versus 258K)
  • Higher display refresh rate – 90 Hz
  • 47% higher pixel density (396 vs 270 PPI)
  • Delivers 59% higher peak brightness (781 against 490 nits)
  • Newer Bluetooth version (v5.3)
  • More recent OS version: Android 16 versus 12
  • Has 2x more RAM: 4GB versus 2GB
  • Slow-motion recording at 120FPS
  • The phone is 3 years and 8 months newer
  • Super AMOLED display (versus competitor's PLS TFT)
  • Supports higher wattage charging (25W versus 15W)

Review

Evaluation of Samsung Galaxy A21s and A15 5G crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate NanoReview Score
πŸ“± Primary usage:

Value for money (Beta)

Should I update?
No 58% Yes
Maybe, but mainly if you specifically want better display.
This is a situational upgrade. It makes the most sense if better display matters to you.
Main improvements: display, performance, and camera.

Tests and specifications

Comparison table of technical specifications and tests

Display

Type PLS TFT Super AMOLED
Size 6.5 inches 6.5 inches
Resolution 720 x 1600 pixels 1080 x 2340 pixels
Aspect ratio 20:9 19.5:9
PPI 270 ppi 396 ppi
Refresh rate 60 Hz 90 Hz
Adaptive refresh rate No No
Max rated brightness 540 nits 800 nits
HDR support No No
Screen protection Tempered glass Tempered glass
Screen-to-body ratio 82.9% 84.4%
Display features - - DCI-P3
Display tests
RGB color space 88.4% 99%
PWM 500 Hz 90 Hz
Response time 30.4 ms 1 ms
Contrast 1500:1 ∞ Infinity
Peak brightness test (auto)
490 nits
781 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 163.6 mm (6.44 inches) 160.1 mm (6.3 inches)
Width 75.3 mm (2.96 inches) 76.8 mm (3.02 inches)
Thickness 8.9 mm (0.35 inches) 8.4 mm (0.33 inches)
Weight 192 g (6.77 oz) 200 g (7.05 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Black, Blue, Red Black, Blue, Yellow
Fingerprint scanner Yes, rear Yes, in-button
Screen-to-body ratio
82.9%
84.4%

Performance

Chipset specifications of Samsung Galaxy A21s and Samsung Galaxy A15 5G
SoC
Chipset Samsung Exynos 850 MediaTek Dimensity 6100 Plus
Max clock 2000 MHz 2200 MHz
CPU cores 8 (8) 8 (2 + 6)
Architecture - 8 cores at 2 GHz: Cortex-A55 - 6 cores at 2 GHz: Cortex-A55
- 2 cores at 2.2 GHz: Cortex-A76
L3 cache - 2 MB
Manufacturing Samsung TSMC
Lithography process 8 nanometers 6 nanometers
Neural processor (NPU) No Yes
GPU
Graphics Mali-G52 MP6 Mali-G57 MC2
GPU shading units 16 64
GPU clock 1001 MHz 962 MHz
FLOPS ~48 GFLOPS ~123.1 GFLOPS

Benchmarks

Benchmark comparison of Samsung Galaxy A21s and Samsung Galaxy A15 5G
Geekbench 6 (Single-Core)
675
Geekbench 6 (Multi-Core)
1957
Compute Score (GPU)
Compute Score (GPU) - 1263
Single-core score 300 675
Multi-core score 836 1957
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
258064
507542
CPU 100392 217616
GPU 18008 41857
Memory 86289 108852
UX 53375 139217
Total score 258064 507542
Samples [4 tests] [6 tests]
3DMark Steel Nomad Light
Stability - 97%
Graphics test - 1 FPS
Graphics score - 132
Sources: 3DMark [5], [6]
PCMark 3.0
8650
Web score 4948 8902
Video editing 5163 4692
Photo editing 8993 15554
Data manipulation 3929 7068
Writing score 5825 10187

Recent User Tests

The latest benchmark tests that have been submitted by users
Samsung Galaxy A21s
DateBenchmarkResult
πŸ“˜ 2026-09-18 -> HABIBOAnTuTu 12304257
πŸ“˜ 2026-05-16 (Abdul ahad)AnTuTu 11258064
πŸ“˜ 2026-03-29 -> quandzvl12AnTuTu 11316736
πŸ“˜ 2025-10-08 (MinxK)AnTuTu 11231817
πŸ“˜ 2025-10-04 (zayedbinnahyan)AnTuTu 11218341
Samsung Galaxy A15 5G
DateBenchmarkResult
πŸ“˜ 2026-09-17 -> BulboAnTuTu 12608209
πŸ“˜ 2026-09-14 -> BulboAnTuTu 12608209
πŸ“˜ 2026-08-15 (Julian Ludwig)Geekbench 6 GPU1245
πŸ“˜ 2026-08-15 (Julian Ludwig)Geekbench 6 CPU675 / 1791
πŸ“˜ 2026-08-01 (Gota)Geekbench 6 CPU675 / 1957

Memory

RAM
RAM size 2 GB 4 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 2133 MHz
Channels 2 2
Storage
Storage size 32 GB 64 GB
Storage type eMMC 5.1 UFS 2.2
Memory card MicroSD MicroSD
Memory card max size Up to 512 GB Up to 1024 GB

Software

Operating system Android 10 (Can be upgraded to Android 12) Android 14 (Can be upgraded to Android 16)
ROM One UI 4.1 One UI 7.0
OS size 12 GB 20 GB
OS updates 2 years 2 years
Security updates 4 years 3 years

Battery

Capacity 5000 mAh 5000 mAh
Max charge power 15 W 25 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes (50% in 60 min) Yes (51% in 30 min)
Full charging time 2:10 hr 1:23 hr
Battery life tests
Web browsing 09:45 hr 10:02 hr
Watching video 14:13 hr 13:42 hr
Gaming 05:34 hr 07:43 hr
Standby 128 hr 97 hr
General battery life
25:00 hr
22:46 hr

Main camera

Matrix 48 megapixels 50 megapixels
Image resolution 8000 x 6000 8160 x 6120
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 123Β° -
Lenses 1) Standard: 48 MP
2) Ultrawide: 8 MP
3) Macro: 2 MP
4) Depth: 2 MP
1) Standard: 50 MP
2) Ultrawide: 5 MP
3) Macro: 2 MP
Camera features - Bokeh mode - Bokeh mode
- Pro mode
Standard lens
Image resolution 48 MP 50 MP
Aperture f/2.0 f/1.8
Focal length 26 mm 26 mm
Sensor Samsung S5KGM2 Hynix Hi5022Q
Sensor size 1/2.0" (β‰ˆ 0.5 inch) 1/2.8" (β‰ˆ 0.36 inch)
Pixel size 0.8 micron 0.64 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Digital
Ultra-wide lens
Image resolution 8 MP 5 MP
Aperture f/2.2 f/2.2
Focal length - 17 mm
Sensor - SmartSense SC501CS
Sensor size 1/4.0" (β‰ˆ 0.25 inch) 1/5" (β‰ˆ 0.2 inch)
Pixel size 1.12 micron 1.12 micron
Stabilization Digital Digital
Macro lens
Image resolution 2 MP 2 MP
Aperture f/2.4 f/2.4
Sensor - GalaxyCore GC02M1
Stabilization Digital No

Selfie camera

Megapixels 13 megapixels 13 megapixels
Image resolution 4128 x 3096 4160 x 3120
Aperture f/2.2 f/2.0
Focal length - 26 mm
Sensor CMOS GalaxyCore GC013A
Sensor size 1/3.1" (β‰ˆ 0.32 inch) 1/3.06" (β‰ˆ 0.33 inch)
Pixel size 1.12 micron 1.12 micron
Autofocus No No
Stabilization Digital No
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.3
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE
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, QZSS
NFC* Yes Depends on the region
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 -
5G support No Yes

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes No
Dolby Atmos Yes Yes
Speakers test
Max loudness
79.5 dB
83.7 dB

Other

Category Budget Budget
Announced May 2020 December 2023
Release date June 2020 December 2023
Launch price (MSRP) $200 $199
Successor - Samsung Galaxy A24 4G - Samsung Galaxy A17 5G
SAR (head) 0.23 W/kg 0.8 W/kg
SAR (body) 1.38 W/kg 1.46 W/kg
Sensors - Hall-effect sensor
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Gyroscope
- Accelerometer
- Compass
- Fingerprint
Bundled charger - Not included
*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 A15 5G is definitely a better buy.

Cast your vote

So, which phone would you choose?
15 (42.9%)
20 (57.1%)
Total votes: 35

User opinions

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