Samsung Galaxy S21 vs Xiaomi Mi 11i

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

Display

Size:

6.2 inches
6.7 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 424 PPI
2400 x 1080 pixels, 20:9 ratio, 395 PPI

Technology:

Dynamic AMOLED
AMOLED

Screen-to-body:

86.06 %
85.89 %

Peak brightness:

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

Features:

120Hz refresh rate (adaptive), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
120Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 888
Qualcomm Snapdragon 888 SM8350

Processor:

Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 660
Adreno 660

RAM:

8GB LPDDR5
8GB LPDDR5

Internal storage:

128GB (UFS 3.0), not expandable
128GB (UFS 3.1)

Device type:

Smartphone
Smartphone

OS:

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

Battery

Capacity:

4000 mAh
4520 mAh

Type:

Li - Polymer, Not user replaceable
Not user replaceable

Charging:

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

Max charge speed:

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

Camera

Rear:

Triple camera
Triple camera

Main camera:

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

Specifications:

Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm
Aperture size: F1.8; Sensor size: 1/1.52”; Pixel size: 0.7 μm

Second camera:

64 MP (Telephoto, OIS, PDAF)
5 MP (Telephoto, Macro)

Specifications:

Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F2.4

Third camera:

12 MP (Ultra-wide, Autofocus)
8 MP (Ultra-wide)

Specifications:

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

Video recording:

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

Features:

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

Front:

10 MP (PDAF, HDR)
20 MP (HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)
6.44 x 3.01 x 0.31 inches (163.7 x 76.4 x 7.8 mm)

Weight:

6.03 oz (171.0 g)
6.91 oz (196.0 g)

Materials:

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

Resistance:

Water, Dust; IP68

Biometrics:

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

Keys:

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

Colors:

Phantom pink, Violet, Gray, White
Cosmic Black, Frosty White, Celestial Silver

Cellular

5G:

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

LTE (FDD):

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), 17(700 b), 20(800 DD), 28(700 APT), 66(AWS-3)

LTE (TDD):

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

UMTS:

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

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

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM

Multimedia

Headphones:

No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Loudspeaker, Multiple speakers

Features:

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

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation, Video recording
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.2

Wi-Fi:

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); MIMO, Wi-Fi Direct, Hotspot

USB:

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

Features:

Charging, Headphones port, OTG, Video out
Charging

Location:

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

Sensors:

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

Other:

NFC, ANT+
NFC, Infrared

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 08, 2020
Mar 30, 2021

FCC ID value:

A3LSMG991U
2AFZZK11G

Measured SAR:

Head:

0.36 W/kg
0.95 W/kg

Body:

1.08 W/kg
0.74 W/kg

Simultaneous Transmission:

3.96 W/kg
1.59 W/kg

Wireless Router:

1.09 W/kg
0.93 W/kg

Phablet:

2.49 W/kg

Buyers information

Price:

$ 800
€ 649

In The Box:

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

Availability

Officially announced:

Jan 14, 2021
Mar 29, 2021
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