Samsung Galaxy S21 vs Xiaomi Mi 11 Ultra Specs Comparison

Availability

Officially announced
Jan 14, 2021	Mar 29, 2021
Prices (MSRP)
$800

Design

Dimensions
5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm	6.47 x 2.94 x 0.33 inches 164.3 x 74.6 x 8.38 mm
Weight
6.03 oz / 171.0 g	8.25 oz / 234.0 g
Materials
Back: Plastic Frame: Aluminum	Back: Ceramic
Resistance
Water, Dust; IP68	Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	2D Face unlock, Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Phantom pink, Violet, Gray, White	Ceramic White, Ceramic Black

Display

Size
6.2-inch, 86.06% screen-to-body	6.8-inch, 91.24% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1300 nits	AMOLED, 120Hz, HDR, 1700 nits
Resolution
2400x1080px, 20:9 ratio, 424 PPI	3200x1440px, 20:9 ratio, 515 PPI
Protection
Corning Gorilla Glass Victus	Corning Gorilla Glass Victus
Additional display
	1.1 inches, 294 x124 px, AMOLED, Touch screen: Yes, Capacitive

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1.2 (Good)	2.3 (Average)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888 (5 nm)	Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680	Octa-core Kryo 680
GPU
Adreno 660	Adreno 660
Memory
8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB	8GB (LPDDR5)/256GB (UFS 3.1) 12GB/256GB 16GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (13, 12, 11)	Android (11)

Battery

Type
4000 mAh, Li - Polymer	5000 mAh, Li - Polymer
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
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 67.0W Wireless: 67.0W

PhoneArena Battery Tests

Battery Life Estimate

4h 28min

Browsing

7h 47min

Video

7h 36min

Gaming

7h 9min

Battery Life Estimate

4h 58min

Browsing

8h 58min

Video

8h 7min

Gaming

8h 20min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 μm	50 MP (OIS, Laser autofocus) Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.12″ Pixel size: 1.4 μm
Second camera
12 MP (Ultra-wide, Autofocus) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	48 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/2" Pixel size: 0.8 μm
Third camera
64 MP (Telephoto, OIS, PDAF) Aperture size: F2.0 Focal Length: 29 mm Sensor size: 1/1.7" Pixel size: 0.8 μm	48 MP (Telephoto, Autofocus) Optical zoom: 5.0x Aperture size: F4.1 Focal Length: 120 mm Sensor size: 1/2" Pixel size: 0.8 μm
Flash
LED	Tricolor LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS	8K UHD (24 fps), 4K UHD (60 fps), 1080p (1920 fps), 720p (1920 fps)
Front
10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	20 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.2
WLAN
a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	b,g,n,ac,Wi-Fi 6 Wi-Fi Direct, Hotspot 802.11 b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, GNSS, Dual-band positioning, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC, Infrared

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

Cellular

5G Bands
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	n1, n3, n5, n7, n8, n20, n28, n38, n40, n41, n77, n78, n79, SA, NSA
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 66
4G (TDD) Bands
38, 39, 40, 41, 46, 48	38, 40, 41, 42
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS	HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 08, 2020 FCC ID value: A3LSMG991U	Date approved: Mar 31, 2021 FCC ID value: 2AFZZK1G
Measured SAR
Head: 0.36 W/kg Body: 1.08 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.09 W/kg Phablet: 2.49 W/kg	Head: 0.84 W/kg Body: 0.46 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 0.74 W/kg

Alternative variants

with 256GB storage

Memory	256GB

with 12GB RAM

Memory	12GB
Prices (MSRP)	€1200

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 2900 MHz 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz Cortex-A55
GPU	Mali G78 MP14
Weight	5.96 oz / 169.0 g
5G Bands	SA, NSA, Sub-6
FCC approval	Date approved: Dec 18, 2020 FCC ID value: A3LSMG991B
Measured SAR	Head: 0.42 W/kg Body: 0.94 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.34 W/kg Phablet: 2.37 W/kg

with 16GB RAM

Memory	16GB

Discover more

Full Specs Samsung Galaxy S21 Specs PA Review Samsung Galaxy S21 Review

Full Specs Xiaomi Mi 11 Ultra Specs PA Review Xiaomi Mi 11 Ultra Review