Asus ROG Phone 6 vs Samsung Galaxy S21 Ultra 5G

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71, - Version A; 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 32, 34, 38, 39, 40, 41, 42, 48 - Version B; 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48 - Version C

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G network

5G band 1, 2, 3, 5, 7, 8, 12, 13, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78, 79 SA/NSA/Sub6 - Version A; 1, 3, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA/Sub6 - Version B; 1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6 - Version C

5G band SA/NSA/Sub6/mmWave
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (6CA), Cat20, 2024 Mbps download, 210 Mbps upload

LTE-A (CA), 2000 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Dual SIM (Nano-SIM, dual stand-by)

Glass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
Height

173 mm

165.1 mm
Width

77 mm

75.6 mm
Thickness

10.3 mm

8.9 mm
Weight

239 g

227 (Sub6) / 229 (mmWave) g
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

IPX4

IP68 (1.5m and 30 mins)
Dust proof

IPX4

IP68
Build features

Pressure sensitive zones (Gaming triggers), Illuminated RGB logo (on the back)

-
Colors

Black, White

Black, Brown, Silver, Navy, Titanium

Display
Display type

AMOLED

Dynamic AMOLED 2X
Physical size

6.78 inches

6.8 inches
Resolution

1080 x 2448 pixels

1440 x 3200 pixels
Pixel density

395 ppi

515 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, Corning Gorilla Glass Victus, Oleophobic coating

Scratch resistant, Corning Gorilla Glass Victus
Display features

165Hz, HDR10+, 800 nits (typ), 1200 nits (peak)

120Hz, HDR10+, 1500 nits (peak), Infinity-O display, Always-On display
DxOMark display score

-

91

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 50 MP, f/1.9 , 24 mm, 1/1.56" , 1.0 µm

(wide) , 108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm
(ultrawide) , 13 MP, f/2.2 , 125˚ , 12 mm

(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom
(macro) , 5 MP

(telephoto) , 10 MP, f/2.4 , 70 mm, 1/3.24" , 1.22 µm, 3x optical zoom
(ultrawide) , 12 MP, f/2.2 , 13 mm, 1/2.55" , 1.4 µm
Primary camera resolution

8190 x 6120 pixels

12000 x 9000 pixels
Primary camera video

8K@24fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 720p@480fps; gyro-EIS

8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, RAW, Pro Video mode

Autofocus, continuous shooting, digital zoom, optical zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocus
DxOMark photo

-

128
DxOMark zoom

-

76
DxOMark video

-

98
DxOMark camera score

-

121

Selfie camera
Selfie camera type

Single

-
Selfie camera

(wide) , 12 MP, 28 mm

(wide) , 40 MP, 26 mm, f/2.2 , 80˚ , 1/2.8" , 0.7 µm
Selfie camera resolution

4032 x 3024 pixels

7968 x 5480 pixels
Selfie camera features

Face unlock

Autofocus, HDR, phase detection autofocus
Selfie camera video

1080p@30fps

4K@30/60fps, 1080p@30fps
DxOMark photo

-

105
DxOMark video

-

93
DxOMark camera score

-

100

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 6E
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
WiFi Tri-Band

Yes

-
USB

USB Type-C 3.1 (side), USB Type-C 2.0 (bottom)

Type-C 3.2
USB connector

Accessory connector

-
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD, aptX Adaptive

-
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-
NavIC

Yes

-