Samsung Galaxy Z Flip 4 vs S21 FE 5G

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Samsung Galaxy Z Flip 4 vs S21 FE 5G

Here we compared two flagship smartphones: the 6.7-inch Samsung Galaxy Z Flip 4 (with Qualcomm Snapdragon 8 Plus Gen 1) that was released on August 10, 2022, against the Samsung Galaxy S21 FE 5G, which is powered by Qualcomm Snapdragon 888 and came out 7 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy Z Flip 4
  • 72% better performance in AnTuTu Benchmark (1079K versus 625K)
  • Newer Bluetooth version (v5.2)
  • Has a 0.3 inch larger screen size
  • Delivers 16% higher peak brightness (922 against 797 nits)
  • 42% faster in single-core GeekBench 6 test: 1667 and 1174 points
  • The phone is 7-months newer
  • Ready for eSIM technology
Reasons to consider the Samsung Galaxy S21 FE 5G
  • The rear camera has a 3x optical zoom
  • Waterproof body (IP68 classification)
  • Comes with 800 mAh larger battery capacity: 4500 vs 3700 mAh
  • Has 2 SIM card slots
  • Thinner bezels – 7.5% more screen real estate

Review

Evaluation of Samsung Galaxy Z Flip 4 and S21 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
NanoReview Score
Final comparison evaluation

Value for money

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Dynamic AMOLED Dynamic AMOLED
Size 6.7 inches 6.4 inches
Resolution 1080 x 2640 pixels 1080 x 2340 pixels
Aspect ratio 21.9:9 20:9
PPI 425 ppi 401 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes No
Max rated brightness 500 nits 420 nits
Max rated brightness in HDR 1200 nits 1200 nits
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection - Gorilla Glass Victus
Screen-to-body ratio 82.1% 89.6%
Display features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display tests
RGB color space 97% 97%
PWM 120 Hz 247 Hz
Response time 1 ms 6 ms
Contrast ∞ Infinity ∞ Infinity
Peak brightness test (auto)

Design and build

Height 165.2 mm (6.5 inches) 155.7 mm (6.13 inches)
Width 71.9 mm (2.83 inches) 74.5 mm (2.93 inches)
Thickness 6.9 mm (0.27 inches) 7.9 mm (0.31 inches)
Weight 187 g (6.6 oz) 177 g (6.24 oz)
Waterproof IPX8 IP68
Rear material Glass Plastic
Frame material Metal Metal
Colors Black, Gold, Blue, Green, Purple White, Gray, Green, Purple
Fingerprint scanner Yes, in-button Yes, in-display
Screen-to-body ratio

Performance

Tests of Samsung Galaxy Z Flip 4 and Samsung Galaxy S21 FE 5G in the benchmarks
SoC
Chipset Qualcomm Snapdragon 8 Plus Gen 1 Qualcomm Snapdragon 888
Max clock 3190 MHz 2840 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4 cores at 2 GHz: Cortex-A510
- 3 cores at 2.75 GHz: Cortex-A710
- 1 core at 3.2 GHz: Cortex-X2
- 4 cores at 1.8 GHz: Kryo 680 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 680 Gold (Cortex-A78)
- 1 core at 2.84 GHz: Kryo 680 Prime (Cortex-X1)
L3 cache 6 MB 4 MB
Lithography process 4 nanometers 5 nanometers
Graphics Adreno 730 Adreno 660
GPU shading units 1536 1024
GPU clock 900 MHz 792 MHz
FLOPS ~2764.8 GFLOPS ~1622 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
CPU 291874 140597
GPU 362777 209723
Memory 191619 134992
UX 224036 139479
Total score 1079134 625671
3DMark Wild Life Performance
Max surface temperature 36.8 °C 39.1 °C
Stability 46% 69%
Graphics test 51 FPS 34 FPS
Graphics score 8664 5703
PCMark 3.0
Web score 11291 10889
Video editing 7492 7079
Photo editing 31666 28541
Data manipulation 10987 10075
Writing score 16927 14461

Memory

RAM
RAM size 8 GB 6, 8 GB
Memory type LPDDR5 LPDDR5
Memory clock 3200 MHz 2750 MHz
Channels 4 2
Storage
Storage size 128, 256, 512 GB 128, 256 GB
Storage type UFS 3.1 UFS 3.1
Memory card No No

Software

Operating system Android 12 (Can be upgraded to Android 13) Android 12 (Can be upgraded to Android 13)
ROM One UI 5.1 One UI 5.0
OS size 24 GB 17.5 GB

Battery

Capacity 3700 mAh 4500 mAh
Max charge power 25 W 25 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging Yes (15 W) Yes (15 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Fast charging Yes (55% in 30 min) Yes (51% in 30 min)
Full charging time 1:15 hr 1:15 hr
Battery life tests
Web browsing 08:52 hr 07:42 hr
Watching video 11:31 hr 13:05 hr
Gaming 03:55 hr 05:29 hr
Standby 110 hr 91 hr
General battery life

Camera

Specs and camera test of smartphones
Main camera
Matrix 12 megapixels 12 megapixels
Image resolution 4000 x 3000 4032 x 3024
Zoom Digital Optical, 3x
Flash LED LED
Stabilization Optical Optical
8K video recording No 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 123° 123°
Lenses 2 (12 MP + 12 MP) 3 (12 MP + 8 MP + 12 MP)
Wide (main) lens - 12 MP
- Aperture: f/1.8
- Focal length: 27 mm
- Pixel size: 1.8 micron
- Sensor: 1/1.76", Sony IMX563 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
- 12 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 1.8 micron
- Sensor: 1/1.76", Sony IMX555 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
Telephoto lens - - 8 MP
- Aperture: f/2.4
- Focal length: 76 mm
- Pixel size: 1 micron
- Sensor: 1/4.5", Hynix Hi847 (CMOS)
- Phase autofocus
- Optical stabilization
Ultra-wide lens - 12 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/3.06", Sony IMX258 (Exmor-RS CMOS)
- 12 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/3.0", Sony IMX258 (Exmor-RS CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
- RAW support
Samples Photo samples of Samsung Galaxy Z Flip 4 from DxOMark Photo samples of Samsung Galaxy S21 FE 5G from DxOMark
Selfie camera
Megapixels 10 megapixels 32 megapixels
Image resolution 3648 x 2736 6464 x 4864
Aperture f/2.4 f/2.2
Focal length 26 mm 26 mm
Pixel size 1.22 microns 0.8 microns
Sensor type Exmor-RS CMOS Exmor-RS CMOS
Sensor size 1/3.2" 1/2.74"
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS

DxOMark camera tests

Photo quality
Video quality
Generic camera score

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 5.2 5
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB-Storage 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 * 1 2
Type of SIM card Nano Nano
Multi SIM mode - Standby
eSIM support * Yes No
Hybrid slot No No
LTE Cat * 20 19
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

Other

Category Flagship Flagship
Announced August 2022 January 2022
Release date August 2022 January 2022
SAR (head) 1.15 W/kg 0.95 W/kg
SAR (body) 1.2 W/kg 1.48 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Not included Not included
* Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the performance and gaming are more important to you, then choose the Samsung Galaxy Z Flip 4 . But if the camera, connectivity, and design are more of a priority – go for the Samsung Galaxy S21 FE 5G .

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