Asus Zenfone 8 review

The Asus Zenfone 8 is a solid flagship phone at a sub-flagship price, though inevitably there are compromises: there is no telephoto lens or wireless charging, and it lacks its predecessor's new flip camera that allowed the rear lenses to rotate forward for taking selfies.

The Asus Zenfone 8 was introduced in May 2021 and is one of the smallest flagship-level smartphones available right now. But don’t be fooled by the diminutive size. The Asus is equipped with top-tier hardware, including Qualcomm’s top-of-the-line 888 chipset and a 5.9-inch Super amoled display with 1080 x 2400 resolution and 120 Hz refresh rate. The Zenfone 8 has a dual-camera system for image purposes. The main camera has an optically stabilized 64 MP Sony sensor with Quad-Bayer technology.

The field of view is expanded by the ultra-wide camera to correspond to a focal length of 14.3 mm (equal to 35 mm). In video mode, you can capture up to 8K video at 24 frames per second. Just a few months ago, the Asus ZenFone 8 went on sale all around the world alongside the ZenFone 8 Flip. This phone has premium features but only a small fraction of what top models from Apple and Samsung cost, and it’s also smaller. But does the decreased price indicate significant compromises? we have used the ZenFone 8 for a while to determine whether it is a phone that is worthwhile purchasing.


The Zenfone line is known for its bold designs, with its unique flip-up camera module that allowed it to have an edge-to-edge display and make the full range of cameras available for traditional photos. The Zenfone 8 is probably just as bold, but its unique feature is that it packs flagship specs into a phone with a 5.9-inch display.

That may not sound like a small thing, and sure, it’s bigger than the iPhone 12 mini, but there is currently no Android phone with flagship specs and a display of less than 6 inches. The Zenfone 8 measures 5.8 x 2.7 x 0.35 inches and weighs 6 ounces. The closest competitors on the Android side are all larger in at least two dimensions, such as the OnePlus 9 (6.3 x 2.9 x 0.32 inches, 6.77 ounces) or the Galaxy S21 (5.97 x 2.8 x 0.31 inches, 5.95 ounces), but of course the iPhone 12 mini (5.18 x 2.53 x 0.29 inches, 4.76 ounces) makes them all look monstrous by comparison.


One of the biggest attraction of the ZenFone 8 is the 5.9-inch Full HD+ AMOLED display. The phone has a body ratio of 84.2%, with a small selfie camera with a punch hole on the top left. The edges are a bit thicker, but do not interfere too much with the clear display.

The standout feature of this screen is the 120 Hz refresh rate with a 1 ms touch response and 240 Hz sampling rate. The screen is bright, clear and colorful and is great for watching videos or role playing games. It’s also bright enough to use in direct sunlight without any problems. At higher refresh rates, the battery drains much faster. If saving the battery is important to you, I recommend lowering the quality for everyday use and only using the 120 Hz when you really need it.

The 5.9-inch diagonal small screen camera of the zenfone 8 has a Full HD+ resolution and a 20:9 aspect ratio. This AMOLED from Samsung has a 120Hz refresh rate. It is initially set to adaptive mode, which means that the refresh rate ramps up and down based on the tasks at hand.


With the Zenfone 6, Asus borrowed much from OnePlus’s model. To more nearly mimic Oxygen OS, the company fundamentally altered the way its software was designed. The end product was a simple, minimalist UX with lots of settings-hidden adjustments and functionality. we recall saying at the time that ZenUI had finally reached a decent spot thanks to Asus.

This choice is maintained via the ROG Phone 5 and the Zenfone 8 at hand. ZenUI 8 has a similar design to that of a Pixel and does a superb job of accomplishing what you want it to do while remaining unobtrusive. Asus stays quite true to Google’s original goal, although OnePlus has since strayed somewhat from it.

ZenUI, which is based on Android 11 includes a few unique features to differentiate it from stock Android. First off, you can modify the behavior of the power button so that it functions as a Smart Key. Both a double click and a push and hold action can be customized. There are a lot of options available, but on my review unit, I’ve stuck with starting the camera and accessing the power menu.

Hardware and Performance

A Snapdragon 888 processor and up to 16GB of RAM are featured in the Zenfone 8. It’s a tiny powerhouse that destroys every other Android-based device in this size class, even the Pixel 5. Both in testing and real-world use, this phone shows that it is no slouch. The Zenfone 8 achieved single-core scores of 1,120 and multicore scores of 3,659 on Geekbench 5. That matches up perfectly with the 1,126 and 3,618 totals we calculated for the Snapdragon 888-powered OnePlus 9 in our calculations.

However, the iPhone 12 mini outperforms both devices with scores of 1,602 and 4,123, thanks to Apple’s A14 Bionic chip. The Zenfone 8 earned 34 frames per second in the 3DMark Wild Life Unlimited graphics test, which is exactly in par with the OnePlus 9. It still falls short of the incredible 54 fps offered by the iPhone 12 mini, though.

Everyone shouldn’t be surprised that the Zenfone 8 performs as well as it does, even though it falls short of the iPhone 12 small, as we’ve already seen a number of Snapdragon 888-powered smartphones. But in actual use, the phone functions incredibly well. When doing specific things, like opening an app in Resents, it is snappy, quick.


The Asus ZenFone 8 has three main camera lenses. The primary 64MP camera features an f/1.8 aperture, Sony’s IMX686 sensor, and optical image stabilization (OIS). This camera creates vibrant, crisp, and detailed photos. This camera’s dynamic sensor optimises the lighting for the best shot, switching to night mode automatically if you’re taking a picture in the dark. The most spectacular pictures are taken outside in broad daylight, as with most cellphones.

It can’t quite match with devices like the Samsung S21 Ultra or the iPhone 12 Pro Max, but considering how much less expensive it is, it’s difficult to be critical. The 12MP ultra-wide angle lens is equipped with Dual PD autofocus and Sony’s IMX363 sensor. When it comes to textures and details, there is a quality difference between this and the primary sensor. However, colors are often the same wider lenses on less expensive phones may appear less bright.

The phone comes with a 12MP camera on the front. This is the first smartphone with a Sony IMX663 sensor to hit the market, and it also has Dual PD autofocus. The greatest pictures are those taken in natural light or with light coming from behind the camera. The quality of these pictures vary depending on the lighting circumstances.

Battery Life

The 4,000mAh battery in the Zenfone 8 will keep it going all day, but screen-intensive activities like watching videos and playing games will shorten its battery life more quickly than they would on other phones. By lowering the brightness and screen refresh rate, disabling the always-on display, and controlling other power-hungry settings, consumers can extend the battery life of their devices.

Additionally, there are charging options carried over from the ROG 5, such as lowering the charging cap to 90% or 80% to increase battery longevity, as well as scheduled charging to maintain those caps while charging overnight only topping it up to 100% just before a user’s scheduled wake-up alarm goes off. Although it’s not quite as powerful as the 60W charger that comes with the Asus ROG 5, the phone’s stock charger, which is 30W, enables quite quick charging.

Nevertheless, the 30W charger charged the phone from empty to 32 percent in 15 minutes, from 58 percent to 70 percent in 45 minutes, and from completely charged to empty in around an hour. Unfortunately, unlike every other Asus phone before it, the Zenfone 8 lacks wireless charging.

Price and Availability

The Zenfone 8 was introduced on May 12 and has a starting price of €499; it is now available for sale on Asus’ US website for $629, however it has already been marked down to the expected price of $599 (about £425 or AU$769) for 8GB of RAM and 128GB of storage. In the US store, you can increase it to 256GB for $699 (about £505 or AU$929), but there are no models available with more RAM.

For an anticipated $799, the Zenfone 8 is also available in variants with up to 16GB of RAM and 256GB of storage. There are two colour options for the Zenfone 8 matte Obsidian Black and white with a silver frame. The rollout of the Zenfone 8 Flip will be much more constrained, and Asus has announced that it won’t be available in the US.

Final Words

Although some people might be perplexed by the Asus Zenfone 8’s availability, it is a fantastic phone. However, the hardware and software are first-rate, and the cameras work far better than we  had anticipated (particularly considering how disappointed we was with the ROG Phone 5’s photos). The Zenfone 8 offers a tonne of phone for the price and is unquestionably the greatest little Android phone, easily outperforming the Pixel 5 with the exception of camera performance. Even if we don’t yet have a complete understanding of the pricing, the value proposition is great.

Editorial Staff
Editorial Staff
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!


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Although some may be puzzled by the availability of the Asus Zenfone 8, it is a fantastic phone. However, the hardware and software are top-notch, and the cameras work much better than we had anticipated.Asus Zenfone 8 review