Compare Samsung Galaxy S21 Ultra vs ASUS ZenFone 6 vs ASUS ZenFone 8 Flip

USB-C 3.2

USB-C 2.0 + 3.5mm audio combo

USB-C 2.0 + 3.5mm audio combo

WiFi 6, Bluetooth 5, NFC

WiFi 5 + Bluetooth 5.0 + NFC

WiFi 6E + Bluetooth 5.2 + NFC

5000 mAh

5000 mAh

5000 mAh

40MP Phase Detection AF, FOV 80°, F2.2, 0.7 µm

Motorized flip-up main camera module that doubles as front camera

Motorized flip-up main camera module that doubles as front camera

10MP Dual Pixel AF, Optical 10x, FOV 10°,OIS, F4.9, 1.22µm + 10MP Dual Pixel AF, Optical 3x, FOV 35°,OIS, F2.4, 1.22µm

8 MP, f/2.4, 80mm (telephoto), PDAF, 3x optical zoom

12MP Dual Pixel AF, FOV 120°, F2.2, 1.4µm

13 MP, f/2.4, 11mm

Sony flagship IMX363 12 MP dual pixel image sensor, f/2.2, 112˚, 14mm, 1/2.55", 1.4µm, dual pixel PDAF

108MP Phase Detection AF, FOV 83°, OIS, F1.8, 0.8µm

48 MP, f/1.8, 26mm

Sony flagship IMX686 64 MP image sensor, f/1.8, 26mm, 1/1.73", 0.8µm, PDAF

Phantom Black, Phantom Silver, Phantom Violet, Phantom Pink, Phantom Gold, Phantom Red

Twilight Silver, Midnight Black, Matte Black

Glacier Silver, Galactic Black

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

Corning Gorilla Glass 6

Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame

Triple microphones with OZO Audio Zoom & ASUS Noise Reduction Technology

Dual stereo speakers with Dirac HD Sound

92% screen-to-body ratio

92% screen-to-body ratio

8.9 mm

159.1 mm / 6.26 inches

165 mm / 6.5 inches

161.5 mm

9.1 mm / 0.36 inches

9.6 mm / 0.38 inches

75.6 mm

75.44 mm / 2.97 inches

77.3 mm / 3.04 inches

227 g

190 g / 6.7 oz

230 g / 8.11 oz

20:9

20:9

600 nits

700 nits / 1000 nits peak

6.8 inch

6.4 inch

6.67 inch

Dynamic AMOLED 2X (OLED)

IPS

Super AMOLED (OLED)

96% NTSC, 100% DCI-P3

110% DCI-P3, 105% NTSC

515 ppi

395 ppi

120 Hz

90 Hz

QHD+, 3200x1440

FHD+ 2340x1080

FHD+ 2400x1080

1 ms

UHQ 32-bit &DSD64/128 support; PCM: Up to 32 bits, DSD: DSD64/128

EDR + A2DP + aptX Adaptive

A2DP, LE, aptX HD, aptX Adaptive

Qualcomm SM8150 Snapdragon 855 (7 nm)

Qualcomm Snapdragon 888 5G Mobile Platform (5 nm)

Qualcomm Audio CODEC

USB PD 3.0 (PPS) certified Fast Charging

18W Quick Charge 4.0 + 10W Reverse Charging

30W Quick Charge 4.0, 60% in 34 min, 100% in 93 min + Reverse charging

GPS, Galileo, Glonass, BeiDou, A-GPS

GPS (Dual bands, L1+L5), GLONASS (G1), BDS (B1), GALILEO (Dual bands, E1+E5a), QZSS (Dual bands, L1+L5)

GPS (L1/L5), Glonass (L1), Galileo (E1/E5a), BeiDou (B1/B2a), QZSS (L1/L5) and NavIC (L5)

Adreno 640

Qualcomm Adreno 660

HDR10+ certified

HDR10

HDR10+

Android 11

Android with ZenUI

Android 11 with ZenUI 8

Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)

Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)

Single or dual Nano SIM, 5G

Dual 4G

Nano 5G + 4G

Ultrasonic Fingerprint, Face recognition

Ultrasonic Fingerprint sensor, Accelerometer, Barometer, Gyro sensor, Geomagnetic sensor, Hall sensor Proximity sensor, Ambient Light Sensor

Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

Gyroscope sensor, E-compass sensor, Proximity sensor, Ambient light sensor, G-sensor, Hall sensor, In-display fingerprint sensor, Accelerator sensor, Face recognition sensor, Angle sensor

Capacitive touch panel with 10 points multi-touch

Capacitive touch panel with 10 points multi-touch

FM Radio

10~120Hz

4K 60fps / FHD 240fps / HD 480fps gyro-EIS

8K 30fps / 4K 120fps / FHD 240fps / HD 480fps gyro-EIS

IP68

Fast Wireless Charging 2.0

12 or 16 GB

6 / 8 GB

8 GB

LPDDR5

LPDDR5

128, 256, or 512 GB UFS 3.X

Up to 256GB UFS2.1 + microSD

128 or 256 GB UFS3.1 + microSD

Digitizer: S Pen, sold separately

2021-01-14 (Galaxy Unpacked 2021)

2019-05

2021-05-12