Asus 6z 256GB Review: Perfectly functional

April 2, 2022 0 Comments

When Asus released the Zenfone 5Z, many were skeptical of the phone, saying that Asus was probably lucky with the product. Okay, the 6z is a follow-up to the supposed one-hit-surprise and we’re going to examine it in detail to see if the Nessiers were right. Read on to find out.


Powered by Qualcomm Snapdragon 855 with Asus 6z 8GB LPDDR4 memory and 256GB on-board storage. As far as specs go, the Asus 6z doesn’t leave out anything that is going to make a big difference in performance, probably save for UFS 3.0 storage. In all honesty, the lack of UFS 3.0 storage shouldn’t be a barrier for anyone considering buying this phone. We conducted our gaming test after our general benchmark test to find out where Asus 6z is in the performance spectrum. What we got was certainly not disappointing.

On the synthetic benchmark, Asus 6z manages to collect impressive numbers. The Geekbench 5 benchmark single-core Asus 6z scores 768 and the multi-core test scores 2621. By comparison, the ROG Phone II from Asus has a GeekBench score of 753 and 2508 for single and multi-core testing, respectively. AnTuTu sees 6z perform admirably with a respectable score of 440589. Benchmarks that are more GPU-bound, such as 3DMark and GFXBench, Asus 6z have no place to complain. The scores come very close to the OnePlus 7T, which is powered by a Qualcomm Snapdragon 855+ that plays a slightly faster Adreno GPU.

Coming to Real-World Performance, we measured the phone’s gaming performance using GameBench, which allows us to measure real-time CPU-GPU usage, including recording frame rates and even junk. For PUBG Mobile, we recorded an average frame rate of 60fps with 96 percent stability. The gameplay itself was buttery smooth, the game’s graphics were extreme and the resolution was set in HD. For the Asphalt 9, we recorded a median frame rate of 30fps with 93 percent stability. Unfortunately, Asphalt only runs at 60fps on very select devices and Asus 6Z is not one of them.

Using the Asus 6z as a daily driver reveals that the phone’s hardware and software are well-matched together, and no visual jitter can be noticed when switching between apps or even two dozen tabs in Chrome. When editing photos on Snapseed, the previews are almost instantaneous and the file export takes a negligible amount of time, leaving no real reason to complain.

It is interesting to see how far the hardware and software of smartphones have come in the last two years. The Asus 6z is a device whose functionality is at a point where it is essentially indistinguishable from its peers. Most phones in the high-end segment will give you very similar benchmark numbers, but more importantly, very similar numbers for frame rates. Where it will really make a difference is the camera and software experience, which we will discuss later.

The camera

The Asus 6z has a primary 48-megapixel camera with a dual-camera unit while the secondary ultra-wide camera has a resolution of 13 megapixels. The aperture of the primary camera is f / 1.8 and the aperture of the secondary camera is f / 2.4. So far, things are pretty standard. Where things are interesting is that the 6z doesn’t have a front-facing camera. Instead, the rear camera module flips upwards, turning the camera into a front setup. This gives the Asus 6z an unfair advantage in that it can use its Sony IMX586 48-megapixel sensor as a front-facing sensor with all its binging chops.

In terms of camera performance, the primary camera is the strongest point of this phone. The Sony IMX586 sensor produces impressive photos in daylight, unless it’s the 12-megapixel image you’re looking at. Although Asus 6z has tried to stick to the “as-stock-as-possible” approach to the OS, the camera app is completely customizable.

There is nothing to complain about when you look at the pictures taken from the primary camera. Detailed retention and dynamic range are similar to what we have seen from other smartphones with this sensor. While it doesn’t create images that can compete with the likes of the iPhone 11 Pro or the Samsung Galaxy Note 10+, it does stand out neck-to-neck with its counterparts such as the OnePlus 7T. Where the Asus 6z is slightly reduced is the case with the ultraviolet lens, which produces slightly softer images directly outside the camera. You can see some samples below to understand the image quality.

The ultraviolet lens has noticeably soft edges

No slouch under low light shooting conditions

Autofocus is a speed that works in both good and bad light which is impressive. Autofocus is only present in the primary camera, the Ultravide camera does not have this feature. Also, due to the limited f / 2.4 aperture, the ultraviolet camera is not suitable for shooting in low light. If you stick to regular lenses, you will get good results in low light.

As for the rear camera, the Asus 6z’s dual cameras don’t make as big a mark as they do with the front-facing cameras. As with most other smartphones, OEMs use extremely small sensors with dense pixels that usually end up without that great image quality. With the Asus 6z, this is not because you will find the best imaging sensor on the market for taking selfies for you.

Overall, the Asus 6z provides a fairly good imaging experience, which is on par with the best in its class.

Battery life

The Asus 6z packs a 5000mAh battery, which is probably why the phone weighs 190 grams and is 9.2mm thick. With this huge battery, there is no doubt that the phone will last you an acceptable long time. In the Geekbench 4 battery test, the phone lasted about 21 hours, which is impressive by all counts. In daily use, the phone delivers about 2 days of use despite having an IPS display. Smartphones typically use AMOLED panels to get the most out of battery life, but the Asus 6z sticks with a color-perfect IPS display and still manages to deliver exceptional battery life. Suffice it to say, in the case of Asus 6z you will not have any complaints about the battery life. Also, if you think that dropping wireless charging from the package was not the best idea, just think about how long it would take to charge a 5000mAh battery on a wireless charger.


The Asus 6z sports a 6.4-inch IPS display, which means full color accuracy for sRGB color gamut. The resolution of this display is 1080×2340, its pixel density is about 403 ppi. At a time when most companies are starting to move to AMOLED displays, even on many cheap smartphones like the Redmi K20, sticking to the Asus IPS LCD panel is a strange choice. Nonetheless, we get a panel that can go up to 556 lux of maximum brightness and as low as 4 lux for incredibly comfortable use in the dark.

The Asus 6z comes with an IPS LCD display instead of AMOLED

The daylight clarity of the Asus 6z’s display is quite decent, and while the screen is bright enough for day-to-day use, the panel is slightly towards the reflective side. It’s not too much trouble, but it’s not as easy as reading the OnePlus 7T in bright daylight. We will say that the display of Asus 6z is functional, but certainly not the best in the class.


The Asus 6z is a solid follow-up to last year’s Zenfone 5z. Asus has harnessed the power of its engineering department to come up with a flip camera that offers quality selfies that no other smartphone can offer today. It offers a much more refined OS than ever before on an Asus smartphone, which is fast, smooth and close to the feel of stock Android. The battery life of this phone is exceptional, and does not leave room for performance complaints. However, the Asus 6z fails to provide a “wow” factor, which will set Asus 6z experience or even ownership of the 6z different from any other phone in this price range. In fact, the best reason to go for 6z more than anything else in its class is the price of the smartphone, its combined performance metrics and the fact that it has a headphone jack. If you are on a budget and can’t really afford the OnePlus 7T, the Asus 6z is a really good option.

Leave a Reply

Your email address will not be published.