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Xiaomi Mi 11i vs Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Fold 3

Compare phone and tablet specifications of up to three devices at once.

Comparison mode:

Display

Size:

6.7 inches
6.8 inches
7.6 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 395 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI
2208 x 1768 pixels, 22.5:18 ratio, 372 PPI

Technology:

AMOLED
Dynamic AMOLED
Super AMOLED

Refresh rate:

120Hz
120Hz (adaptable)
120Hz

Screen-to-body:

85.89 %
89.33 %
88.57 %

Peak brightness:

1300 cd/m2 (nit)
1500 cd/m2 (nit)

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
Folding inside the device, Ambient light sensor, Proximity sensor

Front cover display:

6.2 inches, 2268 x 832 pixels, Super AMOLED, 120Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass Victus)

Hardware

System chip:

Qualcomm Snapdragon 888 SM8350 (5 nm)
Qualcomm Snapdragon 888 SM8350 (5 nm)
Qualcomm Snapdragon 888 SM8350 (5 nm)

Processor:

Octa-core, 2840 MHz, Kryo 680, 64-bit
Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit
Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit

GPU:

Adreno 660
Adreno 660
Adreno 660

RAM:

8GB LPDDR5
12GB LPDDR5
12GB

Internal storage:

128GB (UFS 3.1)
128GB (UFS 3.1), not expandable
256GB, not expandable

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (11), MIUI 12 UI
Android (12, 11), Samsung One UI
Android (11)

Battery

Capacity:

4520 mAh
5000 mAh
4400 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable
Not user replaceable

Charging:

Fast charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Fast charging, Qi wireless charging, Reverse wireless charging

Max charge speed:

Wired: 33.0W
Wired: 25.0W; Wireless: 15.0W
Wired: 25.0W; Wireless: 11.0W

Camera

Rear:

Triple camera
Quad camera
Triple camera

Main camera:

108 MP (Autofocus)
108 MP (OIS, Laser and PDAF)
12 MP (Autofocus)

Specifications:

Aperture size: F1.8; Sensor size: 1/1.52”; Pixel size: 0.7 μm
Aperture size: F1.8; Focal length: 24 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm
Aperture size: F2.2; Pixel size: 1.12 μm

Second camera:

5 MP (Telephoto, Macro)
10 MP (Telephoto, OIS, PDAF)
12 MP (Telephoto, OIS)

Specifications:

Aperture size: F2.4
Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm
Optical zoom: 2.0x; Aperture size: F2.4; Pixel size: 1.0 μm

Third camera:

8 MP (Ultra-wide)
12 MP (Ultra-wide, PDAF)
12 MP (Ultra-wide, OIS)

Specifications:

Aperture size: F2.2
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Pixel size: 1.8 μm

Fourth camera:

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (30 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
Yes

Features:

HDR, Time-lapse video
OIS, HDR, Hyperlapse, Video light, EIS

Front:

20 MP (HDR)
40 MP (PDAF, HDR)
4 MP (Under-screen)

Folded:

10 MP

Video capture:

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.44 x 3.01 x 0.31 inches (163.7 x 76.4 x 7.8 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)
6.23 x 5.04 x 0.25 inches (158.2 x 128.1 x 6.4 mm)

Folded:

(158.2 x 67.1 x 14.4 mm)

Weight:

6.91 oz (196.0 g)
8.04 oz (229.0 g)
9.56 oz (271.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 5)
Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum
Back: Glass; Frame: Aluminum

Resistance:

Water, Dust; IP68
Yes; IPX8

Biometrics:

2D Face unlock, Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint
Fingerprint (touch)

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Cosmic Black, Frosty White, Celestial Silver
Phantom black, Silver
Phantom Black, Phantom Green, Phantom Silver

Cellular

5G:

n1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
n2, n5, n25, n41, n66, n71, n260, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 28(700 APT), 66(AWS-3)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 2(1900), 5(850), 8(900), 9(1700)

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

Multimedia

Headphones:

No 3.5mm jack
No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker, Multiple speakers
Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

Dolby Atmos
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Dolby Atmos, aptX, aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation, Video recording
for Noise cancellation

Connectivity & Features

Bluetooth:

5.2
5.1
5.2

Wi-Fi:

802.11 a, b, g, n, ac, ax (Wi-Fi 6); MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6); Wi-Fi Direct, Hotspot

USB:

Type-C (reversible)
Type-C (reversible), USB 3.2
Type-C (reversible), USB 3.2

Features:

Charging
Charging, Headphones port, OTG, Video out
Charging, OTG

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Altimeter, Compass, Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Barometer

Other:

NFC, Infrared
NFC, ANT+
NFC

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Mar 30, 2021
Dec 22, 2020
Jun 23, 2021

FCC ID value:

2AFZZK11G
A3LSMG998U
A3LSMF926U

Measured SAR:

Head:

0.95 W/kg
0.77 W/kg
0.73 W/kg

Body:

0.74 W/kg
1.02 W/kg
0.86 W/kg

Simultaneous Transmission:

1.59 W/kg
1.59 W/kg
1.22 W/kg

Wireless Router:

0.93 W/kg
1.16 W/kg
0.79 W/kg

Phablet:

3.15 W/kg

Buyers information

Price:

€ 649
$ 1200

In The Box:

33W Power Adapter, USB Type-C Cable, Type-C to 3.5 mm Headphone Adapter, SIM Eject Tool, Protective Case, User Guide, Warranty Card
C to C Data Cable, Ejection Pin

Availability

Officially announced:

Mar 29, 2021
Jan 14, 2021
Aug 11, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless