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Informr score
The Asus Zenfone 8 currently has an Informr score of 8.1 out of 10. This score is based on our evaluation of 29 sources including reviews from users and the web's most trusted critics.

The "1-Minute" Review


The Asus Zenfone 8 proves that you don't need to sacrifice performance or features to enjoy a super-portable phone. Unless you're looking for a huge display or days-long battery life, it's a compelling small-sized Android option.

What's good

  • Compact size
  • Great performance
  • 120Hz display

What's bad

  • No wireless charging
  • No telephoto lens
  • No storage expansion

Asus has attempted larger displays and flip-out mechanisms in the past with limited success, but the Asus Zenfone 8 sees the brand take a different approach to phone design. Do their new ideas work and is the phone worth buying? Here’s what reviewers think.


Asus opted for a much smaller design for their latest Zenfone release. Reviewers found the size perfect and most raved about it. The phone fits comfortably in your hand and can slide into pockets without falling out. Yet it’s large enough to enjoy your media and easily punch out quick messages or emails.

The entire design is also aluminum, so it has a hefty premium feel in the hand.


A smaller display does not automatically mean a less enjoyable experience with the Zenfone 8. In fact, reviewers said the 120Hz screen was so smooth they would compare it to an iPhone 12 Mini in many ways.

It is water- and dust-resistance rated and also features Gorilla Glass Victus for extra strength. So while it’s not a rugged phone exactly, it should put up with the bumps and dings of daily living well enough.


The Asus Zenfone 8 operates on the latest chipset, Snapdragon 888 and reviewers said it was an absolute pleasure to use, easily keeping up with app switching and multitasking without any visible hiccups.

Software & Storage

The phone ships with Android 11 and a guaranteed two years' worth of updates. You have the choice of 64GB, 128GB or 256GB of storage space. But since there is no microSD storage option, you’ll want to be sure you pick a model with enough storage to last a few years.


The biggest caveat for reviewers is the absence of a telephoto lens. This phone has only two kinds of lenses on its camera bump. The 64-megapixel main lens does a really good job of catching solid vibrant images while the ultra-wide 18-megapixel lens does its job well in good lighting.

They can handle some low-light situations. As long as you have a steady hand, night mode does quite well too.

Overall, reviewers were pleased with the simplicity of the camera and the quality of images it produces.

Battery Life

Small phones mean a smaller battery as well and, in some situations, reviewers said this was obvious. But most agreed that with mindful moderate usage and the phone’s included battery-saver modes, it was easy to last a full day on a single charge.

While the phone doesn’t support wireless charging, a fast-charge power brick is included in the box for speedy top-ups.


There was no specific mention of the speakers or sound capabilities amongst reviewers so one can assume it is about average as with most smartphones. However, if you’re really worried about audio quality, the included headphone jack atop the Zenfone 8 should please you.

Specs at a Glance

  • Aluminum chassis
  • 5.9-inch fluid 120Hz display
  • Qualcomm SM8350 Snapdragon 888 5G processor
  • 6/8/12/16GB of RAM
  • Android 11
  • 64/128/256GB of storage
  • 64MP main lens/ 18MP ultra-wide lens camera
  • 4000mAh battery

Bottom Line

The choice to go to a smaller size for this new Zenfone may seem odd in a market full of ever-larger phones. But in this case, it makes a lot of sense. The phone has a lot to offer when it comes to comfort and portability. It’s true that this phone will likely not find a big following amongst the “bigger is better” crowd, but for those looking to downsize but not lose quality and performance, the Asus Zenfone 8 is a solid choice.

The Verge says, “Rather than an attention-grabbing camera feature, the focus of this design has been to create a smaller phone that’s comfortable to use in one hand, which Asus has done without skimping on processing power or higher-end features. It’s an Android iPhone mini, and it’s fantastic.”

TechRadar states, “The Asus Zenfone 8 is a solid flagship phone at a sub-flagship price, though inevitably there are compromises: there’s no telephoto lens or wireless charging, and it misses out on its predecessor’s novel flip camera that let the rear lenses rotate forward to take selfie shots. You can still get that camera in the limited-release Asus Zenfone 8 Flip, but the regular Zenfone 8 delivers top-tier specs at the most affordable price since the OnePlus 6T.”

Operating system
2.84 GHz
Screen Size
64+ MP

What the Critics Are Saying...

PC Magazine

With two impressive cameras, a top-notch chipset, and a compact build, the Asus Zenfone 8 is a top choice for small-phone fans.

- Steven Winkelman, PC Magazine
Tech Advisor

The Asus ZenFone 8 forgoes the signature motorised camera, and instead boasts strong core features for a very competitive price.

- Hannah Cowton, Tech Advisor

With a DXOMARK Camera score of 120, the Asus Zenfone 8 makes it into the top group in the DXOMARK Premium segment ranking, on the same level as the Xiaomi Mi 11 and only narrowly beaten by the segment leader, the Apple iPhone 12 (122). Good overall still image quality for the price bracket results i...

- Lars Rehm, DxOMark

Zenfone 8 can get you the performance of a thousand-dollar phone for much less money, with only a handful of minor compromises along the way.

- Alex Perry, Mashable

While I can understand how for a guy whose job it is to look at phones day in and day out, a nondescript phone might not be appealing. But after giving it a chance, I’ve got to say that I like that the Zenfone 8 offers something different. The techie in me also appreciates the engineering know-how a...

- MJ Jucutan, GadgetMatch

Prices (Where to Buy)

Common Questions

We've got you covered! Download a free PDF copy of the Asus Zenfone 8 user manual here.

Asus backs up the Zenfone 8 with a 1 Year parts & labour warranty.

If your Zenfone 8 has problems and is still within its warranty period, you could contact Asus support or the retailer you purchased the phone from. You'll find Asus's contact information here. If your phone is off warranty and needs repair for a physical problem such as a broken screen or bad battery, you should visit an authorized service centre or a local phone repair shop. You can also connect with others in The Informr Community Forum to find and share answers to questions.

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Screen Size

The Asus Zenfone 8's screen size is 5.9 inches with 1080 x 2400 pixels resolution.

2.84 GHz

There is a Qualcomm SM8350 Snapdragon 888 5G (5 nm) Octa-core 2.84 GHz processor (CPU).


The phone runs on the Android 11 operating system (OS).

64+ MP

You can take photos or capture video with the phone's onboard 64+ megapixel camera.

There is also a secondary front facing camera with 12+ megapixels resolution.

64/128/256 GB

Internal memory is 64/128/256 GB. No external card slot is available for expansion.


The phone is powered by a Lithium Polymer (Li-Pol), 4000 mAh battery.

Zenfone 8 Specs

Release date May 13, 2021
Regions available USA, United Kingdom
Mobile / Cellular Data
5G, 4G/LTE
SIM card size
Dual SIM Yes
Operating System Android 11

Compare Android Smartphones

Processor Qualcomm SM8350 Snapdragon 888 5G (5 nm) Octa-core 2.84 GHz
Internal Storage 64/128/256 GB
RAM 6/8/12/16 GB
Hearing Aid Compatible Yes
Noise Cancellation Yes
SAR Head: 1.412 W/kg
Body: 1.582 W/kg
Languages English
Manufacturer Warranty 1 Year
Accessories Included USB Power Adapter, Manual, Data Cable
Power & battery
Battery Type Lithium Polymer (Li-Pol)
Battery Capacity 4000 mAh
Removable Battery No
Wireless Charging No
Fast Charging Yes
Video Playback Time Unknown
Internet Use (Wi-Fi) Unknown
Internet Use (Celluar) Unknown
Talk Time Unknown
Standby Time Unknown
Physical Characteristics
Design type Bar
Multi-Use Smart Phone / PDA Yes
Material Aluminium
Colors Obsidian Black, Silver, Moonlight White
Dimensions [H x W x D] 14.8 x 6.85 x 0.89 cm (5.8 x 2.7 x 0.4 in)
Weight 169 grams
Water Resistant / Waterproof Water Resistant
Rugged design No
IP Rating IP 68
Display / Screen
Type Color
Technology AMOLED
Colors 16.7 million
Resolution 1080 x 2400 pixels
Pixel density 446 pixels
Size 5.9 inches
Secondary Display No
Sensors Ambient Light, Proximity, Motion / Accelerometer, Gyroscope, Digital Compass
Graphics Yes
Themes Yes
Backlit Illumination Yes
Zoom / Magnification Yes
Screen Orientation Lock Yes
Multi-Touch Yes
Fingerprint-Resistant Coating No
Additional Display Features Capacitive touchscreen, In-display fingerprint sensor, Corning Gorilla Glass Victus, 120Hz refresh rate
Input / Navigation
Sleep / Wake Key Yes
Home Key No
Mute Key No
Input Type Touchscreen
Navigation Type Touchscreen
Predictive Text Entry Yes
Physical keyboard No
Voicemail Key No
Any Key Answer No
Voice Commands Yes
Keypad/Screen Lock Yes
External Volume Control Yes
External Media Playback Controls No
Fingerprint Sensor Yes
Call Management
Wi-Fi Calling Yes
Voice over LTE (VoLTE) Yes
Contact List Capacity Depends on system memory
Multiple Numbers Per Contact Email address, Other fields
Contact Groups Yes
Auto Answer No
Voice Activated Dialing Yes
Photo Caller ID Yes
Web / Email / Messaging
Web Browser Yes
Email Client Yes
Email Protocols POP3, IMAP, Microsoft Exchange
Additional Email Features Gmail
Messaging SMS, MMS, IM
Push-to-talk (PTT) No
USB OTG Support Yes
Infrared No
Bluetooth 5.2
Bluetooth Profiles A2DP, AVRCP, OPP/FTP, HFP, HSP, PAN
Bluetooth Audio Codecs SBC, AAC, aptX, aptX Adaptive, aptX HD, LDAC
WiFi 802.11 a/b/g/n/ac/ax
WiFi Encryption WEP/WPA/WPA2
Mobile Hotspot Yes
Memory Expansion Slot No
PC Synchronization Yes
TV Out No
DLNA Support No
Data Tethering Compatibility Yes
Java Applications No
Brew Applications No
ECML / Digital Wallet Yes
Main Camera
ƒ/ 1.8
64+ megapixels
Yes (LED)
Additional Rear Camera Info
Auto focus, Effects, Face detection, Geotagging, Multi-shot, Night mode, Panorama, Self-timer, 2nd camera feature (12 MP, F2.2, Ultrawide)
Video Recording Formats
Video Recording Parameters
8K (7680 × 4320 pixels), 24 fps
Front Camera
12+ megapixels
Additional Front Camera Info
Aperture F2.5
Video Recording Parameters
Ultra HD (3840 x 2160 pixels), 30 fps
Audio / Video
Audio Playback Yes
Audio Formats AAC, AAC+, AMR, eAAC+, MIDI, MP3, WMA, WAV
Radio Yes (FM)
Video Playback Yes
Video Playback Formats 3GP / 3GPP, AVI, FLV, H.264 / AVC, MPEG-4, WMV
Streaming Video Yes
External Speakers Yes
Headset Jack 3.5mm
Custom Ringtones Yes
Vibration Alert Yes
Downloadable Ringtones Yes
Ringer ID Yes
Haptic Feedback Vibration Yes
Speakerphone Yes
To-Do / Task List No
Calendar Yes
World Clock Yes
Alarm Yes
Stop Watch Yes
Timer Yes
Calculator Yes
Currency Converter No
Document Viewer Yes
Weather Yes
Stocks No
Maps Yes
NotePad No
Voice Memos / Recorder Yes
Games Downloadable
Apps Downloadable
Included Software / Apps
Additional comments
Related Links Manual (PDF)
Asus Zenfone 8 Reviews
Where to buy Asus Zenfone 8
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