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Asus ZenFone 8 vs Google Pixel 4a Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
9.0
Asus ZenFone 8
9.1
Google Pixel 4a
Asus ZenFone 8 Google Pixel 4a
Released · May 13, 2021
Released · Aug 20, 2020
5.9-inch · 2400x1080px
5.8-inch · 2340x1080px
Dual camera
Single camera
6GB · 128GB
6GB · 128GB
4000 mAh
3140 mAh
Check prices

Design

Dimensions
5.83 x 2.70 x 0.35 inches
148 x 68.6 x 8.9 mm 		5.67 x 2.73 x 0.32 inches
144 x 69.4 x 8.2 mm
Weight
5.96 oz (169.0 g) 5.04 oz (143.0 g)
Materials
Back: Glass (Corning Gorilla Glass 3)
Frame: Aluminum 		Back: Plastic
Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
Optical in-screen fingerprint Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Obsidian Black, Horizon Silver Just black

Display

Size
5.9-inch 5.8-inch
Resolution
2400x1080px, 20:9 ratio, 446 PPI 2340x1080px, 19.5:9 ratio, 444 PPI
Technology
AMOLED OLED
Refresh rate
120Hz 60Hz
Screen-to-body
82.76 % 82.53 %
Peak brightness
1100 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 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 888 SM8350 (5 nm) Qualcomm Snapdragon 730G SM7150-AA (8 nm)
Processor
Octa-core
2840 MHz
Kryo 680 		Octa-core
2200 MHz
Kryo 470
GPU
Adreno 660 Adreno 618
RAM
6GB (LPDDR5) 6GB (LPDDR4)
Internal storage
128GB (UFS 3.1) 128GB (UFS 2.1)
Storage expansion
not expandable not expandable
OS
Android (11), Zen 8 UI Android (12, 11, 10)

Battery

Capacity
4000 mAh 3140 mAh
Type
Li - Polymer
Charging
Qualcomm Quick Charge 4 USB Power Delivery
Charge speed
Wired: 30.0W Wired: 18.0W
PhoneArena Battery Tests
Battery Life Estimate
6h 11min
Browsing
10h 12min
Video
11h 23min
Gaming
8h 42min
Battery Life Estimate
4h 15min
Browsing
9h 27min
Video
6h 48min
Gaming
4h 51min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera Single camera
Main camera
64 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 27 mm
Sensor size: 1/1.7"
Pixel size: 1.6 μm 		12.2 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 27 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Second camera
12 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 14 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Flash
LED LED
Video recording
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (120 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps)
Time-lapse video, Picture-taking during video recording, EIS 		3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
EIS
Front
12 MP (PDAF), Video capture: 3840x2160 (4K UHD) (30 fps) 8 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.2, Yes 5.1
WLAN
802.11 a,b,g,n,ac,ax(Wi-Fi 6),tri-band
MIMO, Wi-Fi Direct, Hotspot 		802.11 a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 3.1
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, QZSS, NavIC, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass Accelerometer, Gyroscope, Compass, Barometer
Other
NFC NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Features
aptX, aptX-HD aptX, aptX-HD
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

5G
Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n38, n40, n66, n71, n77, n78, SA, NSA
4G (FDD)
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+), 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), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500) Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 6(800), 8(900), 19(800) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM, eSIM

Regulatory Approval

FCC approval
Date approved: Jun 25, 2020
FCC ID value: A4RG025J
Measured SAR
Head: 1.18 W/kg
Body: 1.19 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.00 W/kg

Buyers information

MSRP
€ 599 $ 349
In The Box
18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool

Availability

Officially announced
May 12, 2021 Aug 03, 2020

Alternative variants

With 8GB RAM
RAM 8GB
With 8GB RAM and 256GB internal storage
RAM 8GB
Internal storage 256GB
With 16GB RAM and 256GB internal storage
RAM 16GB
Internal storage 256GB
Global
5G Bands n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n77, n78, SA, NSA
4G (FDD) 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), 26(850+), 28(700 APT)
4G (TDD) Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500)
3G Bands 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 6(800), 8(900), 19(800)
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