Asus Zenfone 4 Max (ZC520KL) Review of Pros And Cons

Picture of the Asus Zenfone 4 Max (ZC520KL), by Asus

- Analysis by KJ David


This particular version (there are two of the same name) of the Asus Zenfone 4 Max may have a much-larger battery than the plain Zenfone 4, hence, earning its Max appellation, but it sits nowhere near its mother model with respect to the overall balance between pros and cons.

As mentioned earlier, its biggest facet is a high 4100mAh battery capacity (the Zenfone 4 only has 3300mAh) coupled with Asus's PowerMaster suit , which is essentially a bundle of power-management technologies aiming to enhance its overall battery performance and life span. This 12-technology toolkit includes input/output over voltage protection and temperature protection , to name a couple.

As a nice consequence to its hearty power cell, the Zenfone 4 Pro ZC520KL boasts favorably-high battery scores, such as a 31-hour maximum 3G talk time , a 21-hour Wi-Fi browsing time , and a whopping 101-hour continuous music playback time . Moreover, it supports reverse charging via USB-OTG , in case you want to power up less-enduring devices.

Related: Best big battery phones

As for the specs that its substantial battery supports, this Zenfone 4 offshoot delivers a dual-lens rear camera system made up of a 13-megapixel PDAF main camera and a 5-megapixel 120-degree-angle secondary cam . Regrettably, however, it no longer supports 4K-2160p video-recording , instead playing it safe with a Full HD (1080) maximum video capture resolution. Up front, it sports an 8-megapixel PixelMaster selfie camera clubbed with a Softlight LED flash and a 140-degree Selfie Panorama option .

Related: Best Camera Phones of 2017

The Asus Zenfone 4 Max ZC520KL greets users with an awkward (given its high-class battery and rear camera) 5.2-inch HD-720p screen , which, incidentally, is a step-down from the original model's 5.5-inch FHD-1080p interface. Adding to our disappointment is the fact that this Max version ironically shrinks in comparison to the plain Zenfone 4 processing-wise, having replaced its base phone's octa-core Snapdragon 630 engine with a low-class Snapdragon 425 quad-core 1.4GHz processor , which at least has 3GB of accompanying RAM to work with.

Related: Best Fastest Android phones

For storage, it comes with a satisfactory 32GB internal memory that can be expanded by up to 256GB , while a 360-degree fingerprint reader claiming a 0.3-second unlocking time is on security duties. Lastly, a metallic finish ties all its pros and cons together.

In the end, though taking some hits on the screen and processing fronts, the Zenfone 4 Max ZC520KL offers the popular (as of 2017) dual-camera technology to users who are very meticulous when it comes to battery life.

** This phone is also known as: Asus ZC520KL, Asus Max Zenfone 4 ZC520KL


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