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Xiaomi Mix Fold 3 vs Samsung Galaxy S21 Plus

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Xiaomi Mix Fold 3 vs Samsung Galaxy S21 Plus

90 out of 100
Xiaomi Mix Fold 3
VS
73 out of 100
Samsung Galaxy S21 Plus
Xiaomi Mix Fold 3
Samsung Galaxy S21 Plus

Here we compared two flagship smartphones: the 8.03-inch Xiaomi Mix Fold 3 (with Qualcomm Snapdragon 8 Gen2) that was released on August 14, 2023, against the Samsung Galaxy S21 Plus, which is powered by Exynos 2100 and came out 32 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Mix Fold 3
  • The rear camera has a 5x optical zoom
  • Has a 1.33 inches larger screen size
  • 92% better performance in AnTuTu Benchmark (1612K versus 839K)
  • Delivers 43% higher peak brightness (1273 against 888 nits)
  • Newer Bluetooth version (v5.3)
  • Supports higher wattage charging (67W versus 25W)
  • The phone is 2-years and 8-months newer
  • Compatible with the latest Wi-Fi 7 wireless networks
  • Slow-motion recording at 1920FPS
  • Has a built-in infrared port
Reasons to consider the Samsung Galaxy S21 Plus
  • Better grip in hands – the body is 67.7 mm narrower
  • Weighs 59 grams less
  • The front-facing camera can record video at 4K
  • Ready for eSIM technology

Review

Evaluation of Xiaomi Mix Fold 3 and Samsung Galaxy S21 Plus 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

Value for money

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Mix Fold 3
vs
Galaxy S21 Plus

Display

Type AMOLED Dynamic AMOLED
Size 8.03 inches 6.7 inches
Resolution 1916 x 2160 pixels 1080 x 2400 pixels
Aspect ratio - 20:9
PPI 360 ppi 394 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes No
Max rated brightness 2600 nits 1300 nits
HDR support Yes, Dolby Vision Yes, HDR10+
Screen protection Gorilla Glass Victus 2 Gorilla Glass Victus
Screen-to-body ratio 89.4% 88.3%
Display features - DCI-P3
- Always-On Display
- DC Dimming 		- DCI-P3
- Always-On Display
Display tests
RGB color space - 98.9%
PWM - 240 Hz
Response time - 6.2 ms
Contrast - ∞ Infinity
Peak brightness test (auto)
Mix Fold 3 +43%
1273 nits
Galaxy S21 Plus
888 nits

Design and build

Height 161.2 mm (6.35 inches) 161.5 mm (6.36 inches)
Width 143.3 mm (5.64 inches) 75.6 mm (2.98 inches)
Thickness 5.3 mm (0.21 inches) 7.8 mm (0.31 inches)
Weight 259 g (9.14 oz) 200 g (7.05 oz)
Waterproof - IP68
Rear material Glass Glass
Frame material Metal Metal
Colors Black, Gold Black, Silver, Gold, Red, Purple
Fingerprint scanner Yes, in-button Yes, in-display
Screen-to-body ratio

Performance

Tests of Xiaomi Mix Fold 3 and Samsung Galaxy S21 Plus in the benchmarks
SoC
Chipset Qualcomm Snapdragon 8 Gen2 Samsung Exynos 2100
Max clock 3200 MHz 2840 MHz
CPU cores 8 (1 + 2 + 2 + 3) 8 (1 + 3 + 4)
Architecture - 3 cores at 2 GHz: Cortex-A510
- 2 cores at 2.8 GHz: Cortex-A710
- 2 cores at 2.8 GHz: Cortex-A715
- 1 core at 3.2 GHz: Cortex-X3 		- 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.81 GHz: Cortex-A78
- 1 core at 2.91 GHz: Cortex-X1
L3 cache 8 MB -
Lithography process 4 nanometers 5 nanometers
Graphics Adreno 740 Mali-G78 MP14
GPU shading units 2560 896
GPU clock 680 MHz 854 MHz
FLOPS ~3481.6 GFLOPS ~1530.4 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
CPU 383884 244088
GPU 634315 269299
Memory 304850 159004
UX 275136 164833
Total score 1612247 839148
3DMark Wild Life Performance
Max surface temperature - 41.5 °C
Stability - 67%
Graphics test - 33 FPS
Graphics score - 5538

Memory

RAM
RAM size 12, 16 GB 8 GB
Memory type LPDDR5X LPDDR5
Memory clock - 2750 MHz
Channels 4 2
Storage
Storage size 256, 512, 1024 GB 128, 256 GB
Storage type UFS 4.0 UFS 3.1
Memory card No No

Software

Operating system Android 13 Android 11 (Can be upgraded to Android 13)
ROM MIUI Fold 14 One UI 5.1
OS size - 27.2 GB

Battery

Capacity 4800 mAh 4800 mAh
Max charge power 67 W 25 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging Yes (50 W) Yes (15 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Fast charging Yes (70% in 30 min) Yes (54% in 30 min)
Full charging time 0:50 hr 1:12 hr
Battery life tests
Web browsing - 09:17 hr
Watching video - 15:27 hr
Gaming - 05:07 hr
Standby - 101 hr
General battery life

Camera

Specs and camera test of smartphones
Main camera
Matrix 50 megapixels 12 megapixels
Image resolution - 4000 x 3000
Zoom Optical, 5x Optical, 1.1x
Flash LED Dual LED
Stabilization Optical Optical
8K video recording Up to 24FPS Up to 24FPS
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 1920 FPS (1080p) 960 FPS (720p)
Angle of widest lens 120° 120°
Lenses 4 (50 MP + 10 MP + 10 MP + 12 MP) 3 (12 MP + 64 MP + 12 MP)
Wide (main) lens - 50 MP
- Aperture: f/1.8
- Focal length: 23 mm
- Pixel size: 1 micron
- Sensor: 1/1.56", Sony IMX800 (Exmor-RS CMOS)
- Phase autofocus
- 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 - 10 MP
- Aperture: f/2.0
- Focal length: 75 mm
- Phase autofocus
- Optical stabilization
- 64 MP
- Aperture: f/2.0
- Focal length: 28 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.72", Samsung Bright S5KGW2 (ISOCELL Plus CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
Ultra-wide lens - 12 MP
- Aperture: f/2.2
- Focal length: 15 mm
- Pixel size: 1.12 micron
- Sensor: 1/3.06", Omnivision OV13B10 (CMOS)
- 12 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.4 micron
- Sensor: 1/2.55", Sony IMX563 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
Camera features - Bokeh mode
- Pro mode
- RAW support 		- Bokeh mode
- Pro mode
- RAW support
Samples - Photo samples of Samsung Galaxy S21 Plus from DxOMark
Selfie camera
Megapixels 20 megapixels 10 megapixels
Image resolution - 3872 x 2592
Aperture - f/2.2
Focal length 27 mm 26 mm
Pixel size - 1.22 microns
Sensor type - Exmor-RS CMOS
Sensor size 1/3.4" 1/3.24"
Video resolution 1080p (Full HD) at 60 FPS 2160p (4K) at 60 FPS

DxOMark camera tests

Photo quality
Video quality
Generic camera score

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) 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 5.3 5
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB-Storage mode
- OTG 		- Charging
- USB-Storage mode
- USB-Host mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo, QZSS GPS, GLONASS, Beidou, Galileo
NFC * Yes Yes
Infrared port Yes No
Network
Number of SIM * 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support * No Yes
Hybrid slot No No
LTE Cat * 20 24
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos - Yes
Speakers test
Max loudness

Other

Category Flagship Flagship
Announced August 2023 January 2021
Release date August 2023 February 2021
SAR (head) - 0.54 W/kg
SAR (body) - 1.33 W/kg
Sensors - Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint 		- Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 67 W -
* 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 Xiaomi Mix Fold 3 is definitely a better buy.

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