Xiaomi Mi 11 Pro vs Samsung Galaxy S21 Ultra

Here we compared two flagship smartphones: the 6.81-inch Xiaomi Mi 11 Pro (with Qualcomm Snapdragon 888) that was released on March 29, 2021, against the Samsung Galaxy S21 Ultra, which is powered by Exynos 2100 and came out 2 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 Xiaomi Mi 11 Pro
  • Better camera quality (According to DxOMark rating)
  • Weighs 22 grams less
  • Has a built-in infrared port
Reasons to consider the Samsung Galaxy S21 Ultra
  • The rear camera has a 10x optical zoom
  • More recent OS version: Android 13 versus 12
  • The front-facing camera can record video at 4K
  • Ready for eSIM technology
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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

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Price

Tests and specifications

Comparison table of technical specifications and tests

Display

Type AMOLED Dynamic AMOLED
Size 6.81 inches 6.8 inches
Resolution 1440 x 3200 pixels 1440 x 3200 pixels
Aspect ratio 20:9 20:9
PPI 515 ppi 515 ppi
Refresh rate 120 Hz 120 Hz
Max rated brightness 900 nits 1500 nits
Max rated brightness in HDR 1500 nits -
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection Gorilla Glass Victus Gorilla Glass Victus
Screen-to-body ratio 91.4% 89.8%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
Peak brightness test (auto)
n/a
1022 nits
Sources: NotebookCheck [3]

Design and build

Height 164.3 mm (6.47 inches) 165.1 mm (6.5 inches)
Width 74.6 mm (2.94 inches) 75.6 mm (2.98 inches)
Thickness 8.5 mm (0.33 inches) 8.9 mm (0.35 inches)
Weight 205 g (7.23 oz) 227 g (8.01 oz)
Waterproof IP68 IP68
Rear material Glass Glass
Frame material Metal Metal
Colors Black, Green, Purple Black, Silver, Gray, Blue
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
Mi 11 Pro +2%
91.4%

Performance

Tests of Xiaomi Mi 11 Pro and Samsung Galaxy S21 Ultra in the benchmarks
SoC
Chipset Qualcomm Snapdragon 888 Samsung Exynos 2100
Max. clock 2840 MHz 2840 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 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)
- 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.8 GHz: Cortex-A78
- 1 core at 2.9 GHz: Cortex-X1
L3 cache 4 MB -
Lithography process 5 nanometers 5 nanometers
Graphics Adreno 660 Mali-G78 MP14
GPU clock 840 MHz 760 MHz
FLOPS ~1720 GFLOPS -

Benchmarks

Geekbench 5 (Single-Core)
Mi 11 Pro +1%
1118
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
Mi 11 Pro +7%
796252
CPU 195297 191240
GPU 311982 256481
Memory 139576 151369
UX 157355 149052
Total score 796252 744862
3DMark Wild Life Performance
5153
5221
Stability 90% 69%
Graphics test 30 FPS 31 FPS
Graphics score 5153 5221
PCMark 3.0 score 12304 -
Sources: 3DMark [3], [4]

Memory

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

Software

Operating system Android 11 (Can be upgraded to Android 12) Android 11 (Can be upgraded to Android 13)
ROM MIUI 13 One UI 5.0
OS size - 26.4 GB

Battery

Specifications
Capacity 5000 mAh 5000 mAh
Charge power 67 W 25 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging Yes (67 W) Yes (15 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Fast charging Yes (50% in 15 min) Yes (54% in 30 min)
Full charging time 0:40 hr 1:11 hr
Battery life tests
Web browsing - 10:13 hr
Watching video - 15:32 hr
Gaming - 05:26 hr
Standby - 98 hr
General battery life

Camera

Specs and camera test of smartphones
Main camera
Matrix 50 megapixels 108 megapixels
Image resolution 8700 x 5800 12000 x 9000
Zoom Optical, 5x Optical, 10x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 30FPS Up to 24FPS
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° 120°
Lenses 3 (50 MP + 8 MP + 13 MP) 4 (108 MP + 10 MP + 10 MP + 12 MP)
Wide (main) lens - 50 MP
- Aperture: f/2.0
- Focal length: 24 mm
- Pixel size: 1.4 micron
- Sensor: 1/1.12", Samsung GN2 (ISOCELL Plus CMOS)
- Phase autofocus
- Optical stabilization
- 108 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.33", Samsung S5KHM3 (ISOCELL Plus CMOS)
- Laser autofocus
- Optical stabilization
Telephoto lens - 8 MP
- Focal length: 120 mm
- Pixel size: 1 micron
- Sensor: 1/4.4", Omnivision OV08A10
- Phase autofocus
- Optical stabilization
- 10 MP
- Aperture: f/4.9
- Focal length: 240 mm
- Pixel size: 1.22 micron
- Sensor: 1/2.65", Samsung S5K3J1 (ISOCELL CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
Ultra-wide lens - 13 MP
- Aperture: f/2.4
- Focal length: 16 mm
- Pixel size: 1 micron
- Sensor: 1/4.4", Omnivision OV08A10
- Phase autofocus
- 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 Xiaomi Mi 11 Pro from DxOMark Photo samples of Samsung Galaxy S21 Ultra from DxOMark
Selfie camera
Megapixels 20 megapixels 40 megapixels
Image resolution 5380 x 3620 7864 x 5200
Aperture f/2.3 f/2.2
Focal length 27 mm 26 mm
Pixel size 0.8 microns 0.7 microns
Sensor type ISOCELL CMOS ISOCELL CMOS
Sensor size 1/3.4" 1/2.65"
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 6 (802.11 a/b/g/n/ac/6e) Wi-Fi 6E (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 5.2
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- USB-Host mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC 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* 24 24
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 March 2021 January 2021
Release date April 2021 February 2021
SAR (head) - 0.71 W/kg
SAR (body) - 1.58 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Barometer
- 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

If the battery life is more important to you, then choose the Xiaomi Mi 11 Pro. But if the software, camera, connectivity, and sound are more of a priority – go for the Samsung Galaxy S21 Ultra.

Cast your vote

So, which phone would you choose?
251 (73.4%)
91 (26.6%)
Total votes: 342

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