Samsung Galaxy S21 vs S20 FE 5G

Here we compared two flagship smartphones: the 6.2-inch Samsung Galaxy S21 (with Exynos 2100) that was released on January 14, 2021, against the Samsung Galaxy S20 FE 5G, which is powered by Qualcomm Snapdragon 865 5G and came out 4 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

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Memory

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy S21
  • More recent OS version: Android 15 versus 13
  • 10% better performance in AnTuTu Benchmark (1081K versus 982K)
  • Has 33% more RAM: 8GB versus 6GB
  • More energy-efficient CPU – Exynos 2100
  • 26% faster in single-core GeekBench 6 test: 1484 and 1180 points
  • Weighs 21 grams less
  • Ready for eSIM technology
Reasons to consider the Samsung Galaxy S20 FE 5G
  • The rear camera has a 3x optical zoom
  • Shows 25% longer battery life (22:18 vs 17:54 hours)
  • Expandable storage via MicroSD card up to 1024GB
  • Has a 0.3 inch larger screen size

Review

Evaluation of Samsung Galaxy S21 and S20 FE 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.
DeviceFacts Score
Final comparison evaluation
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Value for money (Beta)

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Currency
8 / 128 GB
VS
6 / 128 GB
44.1
(Average)
Value Index
188.3
(Excellent)

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Dynamic AMOLED Super AMOLED
Size 6.2 inches 6.5 inches
Resolution 1080 x 2400 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 421 ppi 407 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (48-120 Hz) No
Max rated brightness 800 nits 400 nits
Max rated brightness in HDR - 1200 nits
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection Gorilla Glass Victus Corning Gorilla Glass 3
Screen-to-body ratio 85.9% 85.8%
Display features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display tests
RGB color space 99.5% 95.7%
PWM 240 Hz 227 Hz
Response time 5 ms 2.8 ms
Contrast ∞ Infinity ∞ Infinity
Screen space comparison
Galaxy S20 FE 5G
6.5″ (20:9 ratio) = 15.8 in2
Galaxy S21
6.2″ (20:9 ratio) = 14.4 in2
~9% more screen space
Peak brightness test (auto)
855 nits
819 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 151.7 mm (5.97 inches) 159.8 mm (6.29 inches)
Width 71.2 mm (2.8 inches) 74.5 mm (2.93 inches)
Thickness 7.9 mm (0.31 inches) 8.4 mm (0.33 inches)
Weight 169 g (5.96 oz) 190 g (6.7 oz)
Waterproof IP68 IP68
Rear material Plastic Plastic
Frame material Metal Metal
Colors White, Gray, Pink, Purple White, Blue, Green, Red, Orange, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio

Performance

Chipset specifications of Samsung Galaxy S21 and Samsung Galaxy S20 FE 5G
SoC
Chipset Samsung Exynos 2100 Qualcomm Snapdragon 865 5G
Max clock 2900 MHz 2840 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.81 GHz: Cortex-A78
- 1 core at 2.91 GHz: Cortex-X1
- 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77)
- 1 core at 2.84 GHz: Kryo 585 Prime (Cortex-A77)
L3 cache - 4 MB
Manufacturing Samsung TSMC
Lithography process 5 nanometers 7 nanometers
Neural processor (NPU) Yes Hexagon 698
GPU
Graphics Mali-G78 MP14 Adreno 650
GPU shading units 448 768
GPU clock 854 MHz 587 MHz
FLOPS ~765.2 GFLOPS ~901.6 GFLOPS

Benchmarks

Benchmark comparison of Samsung Galaxy S21 and Samsung Galaxy S20 FE 5G
Geekbench 6 (Single-Core)
Galaxy S21 +26%
1484
Geekbench 6 (Multi-Core)
Galaxy S21 +14%
3767
Compute Score (GPU)
Galaxy S21 +131%
6754
Compute Score (GPU) 6754 2923
Single-core score 1484 1180
Multi-core score 3767 3300
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
Galaxy S21 +10%
1081778
CPU 418023 391258
GPU 191872 171698
Memory 170606 167605
UX 301277 251913
Total score 1081778 982474
Samples [17 tests] [27 tests]
3DMark Steel Nomad Light
Stability 72% -
Graphics test 2 FPS -
Graphics score 328 -
3DMark Wild Life Extreme
Galaxy S21 +62%
1800
Stability 64% 90%
Graphics test 10 FPS 6 FPS
Graphics score 1800 1114
Sources: 3DMark [5], [6]
PCMark 3.0
Galaxy S21 +11%
13533
Web score 13238 10914
Video editing 7092 7129
Photo editing 29658 31102
Data manipulation 10433 9568
Writing score 15614 12727

Recent User Tests

The latest benchmark tests that have been submitted by users
Samsung Galaxy S21
DateBenchmarkResult
📘 2026-10-14 (Vadim250905)AnTuTu 121268986
📘 2026-09-30 (Luckyy)AnTuTu 121281558
📘 2026-07-10 (TechNova0627)Geekbench 6 CPU1446 / 3772
📘 2026-07-10 (TechNova0627)AnTuTu 111115971
📘 2026-07-05 (Luckyy)AnTuTu 111086158
Samsung Galaxy S20 FE 5G
DateBenchmarkResult
📘 2026-10-11 -> FenixistarkAnTuTu 121134088
📘 2026-10-05 (Gigante Supremo)AnTuTu 121111940
📘 2026-08-31 (GameFabuloso16)AnTuTu 111010010
📘 2026-08-09 (May)AnTuTu 11745543
📘 2026-07-13 (pooh)AnTuTu 111010016

Memory

RAM
RAM size 8 GB 6 GB
Memory type LPDDR5 LPDDR5
Memory clock 2750 MHz 2750 MHz
Channels 2 2
Storage
Storage size 128 GB 128 GB
Storage type UFS 3.1 UFS 3.1
Memory card No MicroSD
Memory card max size - Up to 1024 GB

Software

Operating system Android 11 (Can be upgraded to Android 15) Android 10 (Can be upgraded to Android 13)
ROM One UI 7.0 One UI 5.0
OS size 28.1 GB 25.6 GB
OS updates 2 years 2 years
Security updates 4 years 4 years

Battery

Capacity 4000 mAh 4500 mAh
Max charge power 25 W 25 W
Battery type Li-Ion Li-Ion
Replaceable No No
Wireless charging Yes (15 W) Yes (15 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Bypass charging No -
Fast charging Yes (55% in 30 min) Yes (37% in 30 min)
Full charging time 1:13 hr 1:35 hr
Battery life tests
Web browsing 06:01 hr 08:09 hr
Watching video 11:06 hr 13:42 hr
Gaming 04:21 hr 05:01 hr
Standby 95 hr 114 hr
General battery life
17:54 hr
22:18 hr

Main camera

Matrix 12 megapixels 12 megapixels
Image resolution 4000 x 3000 4032 x 3024
Zoom Optical, 1.1x Optical, 3x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 24FPS No
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (720p) 960 FPS (720p)
Angle of widest lens 120° 123°
Lenses 1) Standard: 12 MP
2) Telephoto: 64 MP
3) Ultrawide: 12 MP
1) Standard: 12 MP
2) Telephoto: 8 MP
3) Ultrawide: 12 MP
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 12 MP 12 MP
Aperture f/1.8 f/1.8
Focal length 26 mm 26 mm
Sensor Sony IMX555 Sony IMX555
Sensor size 1/1.76" (≈ 0.57 inch) 1/1.76" (≈ 0.57 inch)
Pixel size 1.8 micron 1.8 micron
Autofocus Phase autofocus (Dual Pixel) Phase autofocus (Dual Pixel)
Stabilization Optical Optical
Telephoto lens
Image resolution 64 MP 8 MP
Aperture f/2.0 f/2.4
Focal length 28 mm 76 mm
Sensor Samsung Bright S5KGW2 Hynix HI-847
Sensor size 1/1.72" (≈ 0.58 inch) 1/4.5" (≈ 0.22 inch)
Pixel size 0.8 micron 1 micron
Stabilization Optical Optical
Ultra-wide lens
Image resolution 12 MP 12 MP
Aperture f/2.2 f/2.2
Focal length 13 mm 13 mm
Sensor Sony IMX563 -
Sensor size 1/2.55" (≈ 0.39 inch) 1/3.0" (≈ 0.33 inch)
Pixel size 1.4 micron 1.12 micron
Stabilization Digital Digital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh 70 -
Preview 61 -
Zoom 114 -
Samples Photo samples of Samsung Galaxy S21 from DxOMark -

Selfie camera

Megapixels 10 megapixels 32 megapixels
Image resolution 3872 x 2592 6528 x 4896
Aperture f/2.2 f/2.0
Focal length 26 mm 26 mm
Sensor Sony IMX374 CMOS
Sensor size 1/3.24" (≈ 0.31 inch) 1/2.74" (≈ 0.36 inch)
Pixel size 1.22 micron 0.8 micron
Autofocus Phase autofocus (Dual Pixel) Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB-Storage mode
- USB-Host mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes No
Hybrid slot No Yes
LTE Cat* 24 20
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max loudness
87 dB
90.1 dB

Other

Category Flagship Flagship
Announced January 2021 September 2020
Release date February 2021 October 2020
Launch price (MSRP) $800 $700
Successor - Samsung Galaxy S22 - Samsung Galaxy S25 FE
SAR (head) 0.46 W/kg 0.5 W/kg
SAR (body) 1.51 W/kg 1.35 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger - Yes, 15 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the camera and battery life are more important to you, then choose the Samsung Galaxy S20 FE 5G. But if the performance, connectivity, and software are more of a priority – go for the Samsung Galaxy S21.

Cast your vote

So, which phone would you choose?
96 (16.3%)
493 (83.7%)
Total votes: 589

User opinions

You can share your opinion or ask a question in the comments below
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Avatar
unow June 30, 2025 at 10:06 AM
why everyone choose s20 fe 5g
+4 Reply
Avatar
Oikko July 21, 2025 at 11:26 AM
I use the S20 FE 5G. I bought it for 19k BDT, around 170-180 USD. It offers better value for money for its price. Plus, you can use a custom kernel, Adreno mod driver, and custom ROM OneUI 7.0. You can also increase the GPU frequency to [900 MHz]; it's very stable. Worth buying it.
+5 Reply