Samsung Galaxy S21 Ultra vs Xiaomi Redmi Note 12 Pro Specs Comparison

Availability

Officially announced
Jan 14, 2021
Prices (MSRP)
$1200 | €1399

Design

Dimensions
6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump) 165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump)	6.42 x 2.99 x 0.31 inches 163 x 76 x 8 mm
Weight
8.04 oz / 229.0 g	6.60 oz / 187.0 g
Materials
Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum
Resistance
Water, Dust; IP68	Yes; IP53
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Phantom black, Silver	Stardust Purple, Frosted Blue, Onyx Black, White

Display

Size
6.8-inch, 89.33% screen-to-body	6.7-inch, 86.73% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1500 nits	OLED, 120Hz, HDR, 900 nits
Resolution
3200x1440px, 20:9 ratio, 516 PPI	2400x1080px, 20:9 ratio, 395 PPI
Protection
Corning Gorilla Glass Victus
Features
	HDR support, Dolby Vision, Ambient light sensor, Proximity sensor

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1.5 (Good)	2.1 (Average)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888 SM8350 (5 nm)	MediaTek Dimensity 1080 MT6877V (6 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680	Octa-core 2x2.6GHz Cortex-A78 6x2.0G​Hz Cortex-A55
GPU
Adreno 660	Mali-G68 MC4
Memory
12GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB 16GB/512GB	6GB/128GB (UFS 2.2) 6GB/256GB 8GB/128GB
Storage expansion
not expandable	not expandable
OS
Android (14, 13, 12, 11)	Android (12)

PhoneArena Performance Test

GeekBench 6 Single
1117	966
GeekBench 6 Multi
3312	2342
3D Mark High
1963	636
3D Mark Low
1179	632

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
5000 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
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 67.0W

PhoneArena Battery Tests

Battery Life Estimate

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 40min

Battery Life Estimate

6h 40min

Browsing

14h 4min

Video

10h 22min

Gaming

9h 33min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Triple camera
Main camera
108 MP (OIS, Laser and PDAF) Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm	50 MP (OIS, PDAF) Aperture size: F1.9/F24.0 Sensor size: 1/1.56" Pixel size: 1.12 μm
Second camera
12 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
10 MP (Telephoto, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm	2 MP (Macro) Aperture size: F2.4
Fourth camera
10 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm
Flash
LED	Dual LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS	4K UHD (30 fps), 1080p (120 fps)
Front
40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	16 MP

Connectivity & Features

Bluetooth
5.1	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	a,b,g,n,ac,Wi-Fi 6,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C, USB 2.0
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, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC

Discover more

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

Full Specs Xiaomi Redmi Note 12 Pro Specs PA Review Xiaomi Redmi Note 12 Pro Review

Multimedia

Headphones
No 3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G Bands
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	n1, n3, n5, n8, n28, n38, n40, n41, n77, n78, 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, 3, 5, 8, 19
4G (TDD) Bands
38, 39, 40, 41, 46, 48	34, 38, 39, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 5, 6, 8
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s)	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM	Dual Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U
Measured SAR
Head: 0.77 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.16 W/kg Phablet: 3.15 W/kg

Alternative variants

with 256GB storage

Memory	256GB
Colors	Phantom black
Prices (MSRP)	$1250

With 8GB RAM

Memory	8GB

with 512GB storage

Memory	16GB/512GB
Colors	Phantom black
Prices (MSRP)	$1380

With 256GB internal storage

Memory	256GB

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz Cortex-A55
GPU	Mali G78 MP14
Weight	8.01 oz / 227.0 g
5G Bands	SA, NSA, Sub-6
FCC approval	Date approved: Dec 22, 2020 FCC ID value: A3LSMG998B
Measured SAR	Head: 0.16 W/kg Body: 0.72 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.34 W/kg Phablet: 3.86 W/kg

With 12GB RAM and 256GB internal storage

Memory	256GB