Google Pixel 7a vs. Asus ROG Phone 8 Pro vs. Samsung Galaxy S21 (US/CH)

Commercialization

Brand

Google

Asus

Samsung

Model

Pixel 7a

ROG Phone 8 Pro

Galaxy S21

Known Since Year

Sold since year

Discontinued since year

Colors Available

Charcoal, Snow, Sea, Coral

Phantom Black

Phantom Gray, Phantom White, Phantom Violet, Phantom Pink

Communications

Cell Technology

5G

5G

5G

SIM/Chip Type

Nano-SIM and eSIM

Nano-SIM

Nano-SIM and eSIM

Cell Bands

GWKK3: 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6
G0DZQ: 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78, 260, 261 SA/NSA/Sub6/mmWave
GHL1X, G82U8: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 76, 77, 78, 79 SA/NSA/Sub6

USA: 1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 29, 38, 40, 41, 48, 66, 71, 77, 78, 79 SA/NSA/Sub6
Intl: 1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79 SA/NSA/Sub6

SM-G991U1: 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave
SM-G991B: 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6

WiFi

802.11 a/b/g/n/ac/6e, tri-band

802.11 a/b/g/n/ac/6e/7, tri-band

802.11 a/b/g/n/ac/6, dual-band

Bluetooth

5.3, A2DP, LE

5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless

5.0, A2DP, LE

Geolocation

GPS, GLONASS, GALILEO, BDS, QZSS, NavIC

GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS

GPS, GLONASS, BDS, GALILEO

NFC

Yes

Yes

Yes

Broadcast Radio

No

No

FM radio

Physical Ports

Data Connector

USB Type-C

USB Type-C

USB Type-C

Data Technology

USB Type-C 3.2

2 x USB Type-C, DisplayPort 1.4, OTG

USB Type-C 3.2, OTG

Headphones Connector

No

3.5mm TRS

No

CPU, Memory and Storage

Chipset

Google Tensor G2

Qualcomm SM8650-AB Snapdragon 8 Gen 3

Qualcomm SM8350 Snapdragon 888 5G (5 nm)

CPU(s)

Octa-core (2x2.85 GHz Cortex-X1 & 2x2.35 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)

Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)

Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)

GPU

Mali-G710 MP7

Adreno 750

Adreno 660

Min. RAM

8 GiB

16 GiB

8 GiB

Max. RAM

8 GiB

24 GiB

8 GiB

Min. Storage

Max. Storage

Type of Storage

UFS 3.1

UFS 4.0

UFS 3.1

Display

Technology

OLED

LTPO AMOLED

Dynamic AMOLED 2X

Scratch Protection

Corning Gorilla Glass 3

Corning Gorilla Glass Victus 2

Corning Gorilla Glass Victus+

Peak Brightness

2500 nits

1300 nits

Refresh Rate

90 Hz

165 Hz

120 Hz

Size (Diam.)

6.1 in

6.78 in

6.1 in

Horizontal Resolution

1080 pixels

1080 pixels

1080 pixels

Vertical Resolution

2400 pixels

2400 pixels

2340 pixels

Pixel Density

429 ppi

388 ppi

425 ppi

Features and Software

Original Operative System

Android 13

Android 14

Android 11

Updated Operative System

Android 14

Android 14, One UI 6.1

Biometric Locking

Fingerprint (under display, optical)

Fingerprint (under display, optical)

Fingerprint (under display, ultrasonic)

Other Sensors

accelerometer, gyro, proximity, compass, barometer

accelerometer, gyro, proximity, compass

accelerometer, gyro, proximity, compass, barometer

IP Rating

IP67

IP68

IP68

Main Camera

Resolution

64 MP

50 MP

12 MP

Focal Length

26 mm

24 mm

26 mm

Lens Aperture

f/1.9

f/1.9

f/1.8

Image Stabilization

OIS

gimbal OIS

OIS

Auto-Focus

dual pixel PDAF

PDAF

dual pixel PDAF

Pixel Size

0.8 μm

1 μm

1.8 μm

Wide Camera

Resolution

13 MP

13 MP

12 MP

Focal Length

13 mm

13 mm

Lens Aperture

f/2.2

f/2.2

f/2.2

Auto-Focus Technology

Super Steady video

Pixel Size

1.12 μm

1.4 μm

Telephoto Camera

Resolution

32 MP

64 MP

Zoom

3x optical

1.1x optical

Focal Length

29 mm

Lens Aperture

f/2.4

f/2

Image Stabilization Technology

OIS

OIS

Auto-Focus Technology

PDAF

PDAF

Pixel Size

0.7 μm

0.8 μm

2nd Telephoto Camera

Resolution

Zoom

Focal Length

Lens Aperture

Image Stabilization Technology

Auto-Focus Technology

Pixel Size

Front Camera

Resolution

13 MP

32 MP

10 MP

Focal Length

20 mm

22 mm

26 mm

Lens Aperture

f/2.2

f/2.5

f/2.2

Auto-Focus Technology

dual pixel PDAF

Pixel Size

1.12 μm

0.7 μm

1.22 μm

Energy and Autonomy

Battery Type/Chemistry

Li-Po

Li-Ion

Li-Ion

Battery Capacity

Battery Replacement Model

non-removable

non-removable

non-removable

Wired Charging Tech.

PD3.0

PD3.0, QC5

PD3.0

Wired Charging Power

18 W

65 W

25 W

Wireless Charging Tech.

Yes

Qi

Qi/PMA

Wireless Charging Power

7.5 W

15 W

15 W

Product Dimensions and Weight

Height

Width

Thickness

Weight

Packaging Dimensions and Weight

Length

Width

Height

Weight

Performance

AnTuTu (v8)

584 055

AnTuTu (v9)

765 281

1 639 368

AnTuTu (v10)

2 167 612

GeekBench (v5)

GeekBench (v5.1)

GeekBench (v6)