Xiaomi Mi 11 Ultra vs Samsung Galaxy S21 Ultra

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Comparing the Xiaomi Mi 11 Ultra vs Samsung Galaxy S21 Ultra across performance, display, camera, battery, storage, expert reviews and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Samsung Galaxy S21 Ultra scores higher on the Geekbench Multi-Core test with 3,536, while Xiaomi Mi 11 Ultra scores 2,799, making Samsung Galaxy S21 Ultra the better performer.


Display: Xiaomi Mi 11 Ultra offers a screen size of 6.81 inches, while Samsung Galaxy S21 Ultra offers 6.8 inches, making Xiaomi Mi 11 Ultra the larger display of the two. Samsung Galaxy S21 Ultra features a Dynamic AMOLED 2x display compared to Xiaomi Mi 11 Ultra's AMOLED, making Samsung Galaxy S21 Ultra the better display of the two.


Rear Camera: Samsung Galaxy S21 Ultra offers a higher rear camera resolution with 108 MP, while Xiaomi Mi 11 Ultra offers 50 MP, making Samsung Galaxy S21 Ultra better for rear camera photography.


Front Camera: Samsung Galaxy S21 Ultra offers a higher front camera resolution with 40 MP, while Xiaomi Mi 11 Ultra offers 20 MP, making Samsung Galaxy S21 Ultra better for front camera photography.


Battery: Xiaomi Mi 11 Ultra delivers longer battery life with 12h 43m, while Samsung Galaxy S21 Ultra delivers 10h 37m, making Xiaomi Mi 11 Ultra the better pick for all day usage.


Storage: Both Xiaomi Mi 11 Ultra and Samsung Galaxy S21 Ultra offer the same internal storage of 256 GB.


Expert Review: The editorial team rates both Xiaomi Mi 11 Ultra and Samsung Galaxy S21 Ultra equally at 8.


User Rating: Xiaomi Mi 11 Ultra receives a higher user rating of 4.3, while Samsung Galaxy S21 Ultra has a rating of 4.2.

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Xiaomi Mi 11 Ultra
₹69,999
(Out of Stock)
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Samsung Galaxy S21 Ultra
₹128,999
(Out of Stock)
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Summary

Spec Score

86%
89%
87%

Release Date

29 Apr, 2021
27 Jan, 2021
29 Oct, 2026

Performance

Snapdragon 888
Samsung Exynos 2100
MediaTek Dimensity 9600M
Octa Core (upto 2.84 GHz)
Octa Core (upto 2.9 GHz)
Octa Core (upto 4.21 GHz)
12 GB RAM
12 GB RAM
12 GB RAM

Main Display

6.81 inches (17.3 cm)
6.8 inches (17.27 cm)
6.59 inches (16.74 cm)
AMOLED
Dynamic AMOLED 2x
AMOLED
1440x3200 px (QHD+)
1440x3200 px (QHD+)
1272x2768 px (FHD+)
120 Hz Refresh Rate
120 Hz Refresh Rate
144 Hz Refresh Rate

Cover Display

1.1 inches (2.79 cm)
N/A
N/A
126x294 px
N/A
N/A

Rear Camera

50 MP
Wide Angle Primary Camera
108 MP
Wide Angle Primary Camera
200 MP
Wide Angle Primary Camera (upto 2.8x Optical Zoom)
48 MP
Ultra-Wide Angle Camera
12 MP
Ultra-Wide Angle Camera
50 MP
Ultra-Wide Angle Camera
48 MP
Telephoto Camera (upto 5x Optical Zoom)
10 MP
Telephoto Camera (upto 3x Optical Zoom)
200 MP
Telephoto Camera (upto 10x Optical Zoom)
N/A
10 MP
Camera (upto 10x Optical Zoom)
3.2 MP
Camera

Front Camera

20 MP
Wide Angle Lens
40 MP
Wide Angle Lens
50 MP
Wide Angle Lens

Battery

5000 mAh
5000 mAh
8000 mAh
67W Fast Charging
25W Fast Charging
80W Super VOOC Charging
Wireless Charging
Wireless Charging
Wireless Charging

Storage

256 GB
256 GB
256 GB
UFS 3.1
UFS 3.1
UFS 4.0

Expert Review

8.0/10
8.0/10
N/A

Pros

  • Gorgeous display
  • Excellent cameras
  • Smooth performer
  • Surreal audio experience
  • Flagship-grade performance
  • Great cameras
  • Stunning display
  • Long-lasting battery life
  • Device yet to be reviewed

Cons

  • Pricey
  • Camera bump is ginormous
  • Bulky
  • Telephoto lens could do with some tweaks
  • Uneven weight distribution
  • No expandable storage
  • Purple-sky effect in lowlight scenarios
  • Device yet to be reviewed

User Ratings

4.3/5
(419 ratings)
4.2/5
(1,169 ratings)
N/A

Benchmarks (The higher, the better)

688,824
AnTuTu Score
646,482
AnTuTu Score
N/A
12h 43m
Battery Life (PC Mark)
10h 37m
Battery Life (PC Mark)
N/A

Compare Prices

Not Available in any store
Not Available in any store
₹139,999
@ Flipkart

Video

Videos
2 More Videos
Videos
6 More Videos
There are no videos available for the device.

User Feedback

General

Launch Date

Apr 29, 2021
(Official)
Jan 27, 2021
(Official)
Oct 22, 2026
(Official)

Operating System

Android v11
Android v11
Android v17

OS Updates

N/A
N/A
5 Years

Security Updates

N/A
N/A
6 Years

Custom UI

MIUI
Samsung One UI
ColorOS

Performance

Performance Rating

Very Good
Very Good
Good

Chipset

Qualcomm Snapdragon 888
View Details
Samsung Exynos 2100
View Details
MediaTek Dimensity 9600M MT6994
View Details

Processor

Octa core

2.84 GHz, Single core, Kryo 680 2.42 GHz, Tri core, Kryo 680 1.8 GHz, Quad core, Kryo 680
Octa core

2.9 GHz, Single core, Cortex X1 2.8 GHz, Tri core, Cortex A78 2.2 GHz, Quad core, Cortex A55
Octa core

4.21 GHz, Single core, C1 Ultra 3.5 GHz, Tri core, C1 Premium 2.7 GHz, Quad core, ARM C1-Pro

Architecture (The higher, the better)

64 bit
64 bit
64 bit

Fabrication (The lower, the better)

5 nm
5 nm
3 nm

Graphics (GPU)

Adreno 660
Mali-G78 MP14
Mali-Drage MC12

RAM

12 GB
12 GB / 16 GB
12 GB

RAM Type

LPDDR5
LPDDR5
LPDDR5X

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

688,824
646,482
N/A

Bootup Time (The lower, the better)

15.0 s
34.0 s
N/A

Gaming Test Results

Battery Drain* (The lower, the better)

3.0 %
8.0 %
N/A

Heating* (The lower, the better)

14.7 %
23.5 %
N/A
* after 30 mins of gaming

Display

Display Rating

Excellent
Excellent
Excellent

Display Type

AMOLED (Curved Display)
Dynamic AMOLED 2x
AMOLED

Screen Size

6.81 inches  (17.3 cm)
6.8 inches  (17.27 cm)
6.59 inches  (16.74 cm)

Resolution

1440x3200 px (QHD+)
1440x3200 px (QHD+)
1272x2768 px (FHD+)

Brightness

1700 nits
1500 nits
N/A

Peak Brightness

N/A
N/A
2000 nits

HBM Brightness

N/A
N/A
2000 nits

Refresh Rate

120 Hz
120 Hz
144 Hz

Touch Sampling Rate

480 Hz
N/A
288 Hz

Aspect Ratio

20:9
20:9
20:9

Pixel Density

515 ppi
516 ppi
462 ppi

Screen to Body Ratio (calculated)

91.35 %
89.44 %
91.48 %

Screen Protection

Corning Gorilla Glass Victus
Corning Gorilla Glass Victus
Yes

Bezel-less Display

Yes with punch-hole display
Yes with punch-hole display
Yes with punch-hole display

HDR 10 / HDR+ Support

Yes HDR 10+
Yes HDR 10+
Yes

Screen to Body Ratio (claimed by the brand)

N/A
N/A
96.0 %

Design

Height

164.3 mm
165.1 mm
156.5 mm

Width

74.6 mm
75.6 mm
74.3 mm

Thickness

8.3 mm
8.9 mm
8.4 mm

Weight

234 grams
227 grams
216 grams

Build Material

Back: Ceramic
Back: Gorilla Glass
Back: Glass

Water Resistance

Yes Water resistant IP68 (up to 30 minutes in a depth of 1.5 meter)
Yes Water resistant IP68 (up to 30 minutes in a depth of 1.5 meter)
Yes Water resistant IP68 IP66 IP69

Ruggedness

Dust proof
Dust proof
N/A

Rear Camera

Rear Camera Rating

Excellent
Excellent
Excellent

Resolution

50 MP
Primary Cameraf/1.95 Wide Angle24 mm focal length 1/1.12" sensor size S5KGN2 ISOCELL Plus 1.4µm pixel size
108 MP
Primary Cameraf/1.8 Wide Angle26 mm focal length 1/1.33" sensor size S5KHM3 ISOCELL Plus 0.8µm pixel size
200 MP
Primary Camera18x Digital Zoom 2.8x Optical Zoomf/1.6 Wide Angle 85° field-of-view23 mm focal length
48 MP
f/2.2 Ultra-Wide Angle Camera12 mm focal length 1/0.8" sensor size 2.0µm pixel size
12 MP
f/2.2 Ultra-Wide Angle Camera13 mm focal length 1/2.55" sensor size 1.4µm pixel size
50 MP
f/2.0 Ultra-Wide Angle Camera15 mm focal length 1/1.55" sensor size
48 MP
f/4.1 Telephoto Camera120 mm focal length 1/2" sensor size 0.8µm pixel size
10 MP
Telephoto Camera72 mm focal length 1/3.24" sensor size 1.22µm pixel size
200 MP
f/2.6 Telephoto Camera65 mm focal length
N/A
10 MP
f/4.91/3.24" sensor size 1.22µm pixel size
3.2 MP
f/2.419 mm focal length

Autofocus

Yes
Yes Phase Detection Autofocus Laser Autofocus
Yes

OIS

Yes
Yes
Yes

Flash

Yes Dual-color LED Flash
Yes LED Flash
Yes LED Flash

Image Resolution

8150 x 6150 Pixels
12000 x 9000 Pixels
N/A

Settings

Exposure compensation ISO control
Exposure compensation ISO control
N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Continuous Shooting
High Dynamic Range mode (HDR)
N/A

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus
Digital Zoom
Auto Flash
Face detection
Touch to focus
18 x Digital Zoom
2.8 x Optical Zoom

Video Recording

8k @24 fps
4k @30 fps
Full HD @60 fps
HD @120 fps
8k @24 fps
4k @30 fps
Full HD @60 fps
HD @960 fps
8k @30 fps
4k @30/60/120 fps
Full HD @30/60/120 fps
HD @30 fps

Video Recording Features

N/A
Slow Motion
Video HDR
Bokeh portrait video
Video Pro Mode
Optical Image stabilization
Dual Video Recording
Slow Motion
Video HDR
Video Pro Mode

Front Camera

Front Camera Rating

Very Good
Excellent
Excellent

Resolution

20 MP
f/2.2 Wide Angle Primary Camera27 mm focal length 1/3.4" sensor size 0.8µm pixel size
40 MP
f/2.2 Wide Angle Primary Camera26 mm focal length 1/2.8" sensor size 0.7µm pixel size
50 MP
f/2.0 Wide Angle Primary Camera18 mm focal length

Autofocus

N/A
Yes Phase Detection Autofocus
Yes

Flash

N/A
N/A
Yes Screen flash

Video Recording

Full HD @30 fps
HD @30 fps
4k @30 fps
Full HD @30 fps
4k @30/60 fps
Full HD @30/60 fps
HD @30 fps

Battery

Battery Rating

Very Good
Very Good
Excellent

Capacity

5000 mAh
5000 mAh
8000 mAh

Battery Type

Li-ion
Li-ion
Si/C Li-Ion

TalkTime

N/A
Up to 41 Hours(4G)
N/A

Quick Charging

Yes 67W Fast Charging 100% in 36 minutes
Yes 25W Fast Charging
Yes 80W Super VOOC Charging

Wireless Charging

Yes 100% in 39 minutes
Yes
Yes 50W Wireless Charging

Reverse Charging

N/A
N/A
Yes

Wireless Reverse Charging

Yes
Yes
N/A

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

12h 43m
10h 37m
N/A

Charging Time (20% to 100%) (The lower, the better)

52m 11s
55m 14s
N/A

Storage

Internal Storage

256 GB
256 GB / 512 GB
256 GB

Storage Type

UFS 3.1
UFS 3.1
UFS 4.0

Expandable Storage

No
No
No

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano
SIM1: Nano SIM2: Nano
SIM1: Nano SIM2: Nano

Network Support

5G 4G
5G 4G
5G 4G

VoLTE

Yes
Yes
Yes

SIM 1

5G Bands:
FDD N1 / N3 / N5 / N7 / N8 / N20 / N28
TDD N38 / N40 / N41 / N77 / N78 / N79
5G Bands:
FDD N1 / N3 / N5 / N7 / N8 / N20 / N28 / N66
TDD N38 / N40 / N41 / N77 / N78
5G Bands:
FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66 / N75
TDD N38 / N40 / N41 / N39 / N48 / N77 / N78 / N79
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 3500(band 42)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)
4G Bands:
TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43)
FD-LTE 1700(band 66) / 2100(band 1) / 1500(band 32) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 700 (band 12)
View More

SIM 2

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 3500(band 42)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)
5G Bands:
FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66 / N75
TDD N38 / N40 / N41 / N48 / N39 / N77 / N78 / N79
N/A
N/A
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 1500(band 32) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 1700(band 66) / 700 (band 12)
View More

SAR Value

Head: 0.831 W/kg Body: 0.401 W/kg
Head: 0.77 W/kg Body: 1.02 W/kg
Head: 1.188 W/kg Body: 0.948 W/kg

Wi-Fi

Yes Wi-Fi 5 (802.11 a/b/g/n/ac)
Yes Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 5GHz MIMO
Yes Wi-Fi 7 (802.11 a/b/g/n/ac/be/ax) MIMO

Wi-Fi Features

Mobile Hotspot
Wi-Fi Direct Mobile Hotspot
Wi-Fi Direct Mobile Hotspot

Bluetooth

Yes v5.2
Yes v5.2
Yes v6.1

GPS

Yes with A-GPS Glonass
Yes with A-GPS Glonass
Yes with A-GPS Glonass

NFC

Yes
Yes
Yes

IR Blaster

N/A
N/A
Yes

Multimedia

Stereo Speakers

N/A
Yes
Yes

Audio Jack

USB Type-C
USB Type-C
USB Type-C

Sensors

Fingerprint Sensor

Yes
Yes
Yes

Fingerprint Sensor Position

On-screen
On-screen
On-screen

Fingerprint Sensor Type

Optical
Ultrasonic
Ultrasonic

Other Sensors

Light sensor Proximity sensor Accelerometer Barometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer Barometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer Compass Gyroscope

Compare Prices

Not Available in any store
Not Available in any store
₹139,999
@ Flipkart