Samsung Galaxy S21 Ultra vs Asus ROG Phone 8 Specs Comparison

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

Display

Size:

6.8 inches
6.8 inches

Resolution:

3200 x 1440 pixels, 20:9 ratio, 516 PPI
2400 x 1080 pixels, 20:9 ratio, 388 PPI

Technology:

Dynamic AMOLED
OLED

Refresh rate:

120Hz (adaptable)
165Hz

Screen-to-body:

89.33 %
88.31 %

Peak brightness:

1500 cd/m2 (nit)
2500 cd/m2 (nit)

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus 2), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 888 SM8350 (5 nm)
QualcommSnapdragon 8 Gen 3 SM8650-AB (4 nm)

Processor:

Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit
Octa-core, 1x 3.3GHz Cortex-X4 + 5x 3.2GHz Cortex-A720 + 2x 2.3GHz Cortex-A520

GPU:

Adreno 660
Adreno 750

RAM:

12GB LPDDR5
12GB LPDDR5X

Internal storage:

128GB (UFS 3.1), not expandable
256GB (UFS 4.0)

OS:

Android (13, 12, 11), Samsung One UI
Android (14)

Device type:

Smartphone
Smartphone

Battery

Capacity:

5000 mAh
5500 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, Qi wireless charging, Reverse charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W
Wired: 65.0W; Wireless: 15.0W

Camera

Rear:

Quad camera
Triple camera

Main camera:

108 MP (OIS, Laser and PDAF)
50 MP (OIS, PDAF)

Specifications:

Aperture size: F1.8; Focal length: 24 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm
Aperture size: F1.9; Focal length: 24 mm; Sensor size: 1/1.56"; Pixel size: 1.0 μm

Second camera:

10 MP (Telephoto, OIS, PDAF)
32 MP (Telephoto, OIS, PDAF)

Specifications:

Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm
Optical zoom: 3.0x; Aperture size: F2.4; Sensor size: 1/3.2"; Pixel size: 0.7 μm

Third camera:

12 MP (Ultra-wide, PDAF)
13 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; Focal Length: 13 mm

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

Flash:

LED
LED

Video recording:

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

Features:

OIS, HDR, Hyperlapse, Video light, EIS

Front:

40 MP (PDAF, HDR)
32 MP

Video capture:

3840x2160 (4K UHD) (60 fps)
1920x1080 (Full HD)

Design

Dimensions:

6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)
6.45 x 3.02 x 0.35 inches (163.8 x 76.8 x 8.9 mm)

Weight:

8.04 oz (229.0 g)
7.94 oz (225.0 g)

Materials:

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

Resistance:

Water, Dust; IP68
Yes; IP68

Biometrics:

2D Face unlock, Ultrasonic in-screen fingerprint
In-screen fingerprint

Features:

Dedicated game buttons

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Phantom black, Silver
Phantom Black, Rebel Grey

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n29, n38, n40, n41, n48, n66, n71, n77, n78, n79, SA, NSA, Sub-6

4G (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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)

4G (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 34(2000), 38(2600), 39(1900+), 41(2600+), 42(3500), 48(3600)

3G:

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

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s

SIM type:

Nano SIM
Dual Nano SIM

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
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation, Video recording
for Noise cancellation

Connectivity & Features

Bluetooth:

5.1
5.3

Wi-Fi:

802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 b, g, n, ac, ax, Wi-Fi 6E, Wi-Fi 7; Wi-Fi Direct, Hotspot

USB:

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

Features:

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

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, Cell ID, Wi-Fi positioning

Sensors:

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

Other:

NFC, ANT+
NFC

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

Buyers information

Price:

$ 1200
€ 1100

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Yes
Yes
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