Xiaomi Redmi Note 4X Design, Hardware, Camera, Battery Review


Xiaomi has released the first smartphone in this new year, Xiaomi Redmi Note 4X, which is not only a long battery life smartphone, but also adding the elements of comics, making this smartphone become very famous, especially the Xiaomi Redmi Note 4X MIKU version. Therefore, how is this Redmi Note 4X?


In design, Xiaomi Redmi Note 4x continues the design language and style of Redmi Note 4, almost same, on the front design, it uses 5.5 inch FHD screen with 1920*1080p resolution, up to 450nit brightness, 403ppi density,1000:1 contrast, 72% NTSC color gamut, supporting night screen, eye protection mode and color temperature adjustment.

It uses 2.5 D curved glass.

As for placement,  there is notification light, receiver, 5MP front camera on the screen, below the screen is the common three buttons.

In 150usd budget smartphone market, all metal smartphones are quite popular.

Redmi Note 4X uses the CNC processing, adopting plastic material for stitching on both ends of the up and down part. And it uses the metal antenna line to decorate the joint, which looks similar to all metal body. But when you look in details, the plastic material is very different from the metal design.

In all, Redmi Note 4X  has reduced the cost in its design, but it has new blue and green color to make up this shortage.


Xiaomi Redmi Note 4X  runs MIUI 8 OS based on Android 6.0 OS, which is a very mature OS with good reputation and experience.


In hardware, Redmi Note 4X uses Snapdragon 625 processor, 2.0Ghz, Adreno 506 GPU, running large games, watching videos, searching the Internet very fluently, Snapdragon 625 uses 14nm architecture, which makes Redmi Note 4X enjoy lower power consumption, using longer. In storage, it adopts RAM 3GB ROM 32GB and RAM 4GB ROM 64GB internal storage, right now Xiaomi has not announced the processor of the RAM 4GB ROM 64GB version. So they will bring us surprise. Let’s see the Antutu test.

Redmi Note 4X Antutu

Redmi Note 4 Antutu




In Antutu test, Snapdragon 625 processor has less 10,000 points than Helio X20, especially in UX performance, namely users’ experience, including data safety, data processing, strategy game, image processing, and I/O.

In Geekbench 4, Xiaomi Redmi Note 4X with Snapdragon 625 processor has got 825 points in single core, 2,847 points in multi-core. But Xiaomi Redmi Note 4 with Helio X20 has 1,661 points in single core,and 4,804 points in multi-core. Therefore, Xiaomi Redmi Note 4x is not as powerful as Redmi Note 4.

Although in performance, Snapdragon 625 is not as good as Helio X20, thanks to the baseband and power saving function, Snapdragon 625 has more advantage. That’s the reason that Redmi Note 4X has better battery life.


In camera, Redmi Note 4X uses dual camera with 13MP back one, 5P lens, f/2.0 aperture, dual tone LED light supporting PDAF with dark light enhancement technology, HDR,panoramic mode,continuous mode, facial recognition, real-time filter photographing, supporting 1080P/720P video shooting, 30fps/720p slow motion video and 120fps. And it has 5MP front camera to support the second generation 36-level smart beautification, facial recognition.

In terms of specs and function, Redmi Note 4X and Redmi Note 4 are almost same, and it has not improved in image quality. Check samples of Redmi Note 4X below.

Sample 1

Sample 2

Sample 3

Sample 4

According to samples, the image quality has some disadvantages in resolving power, background blur, and color reproduction. In sample 1, due to bad weather of Beijing, it has accurate white balance, but after enlarging the details, there is obvious sharpen edge around the building.

In sample 2, we can see Redmi Note 4X has daub algorithm in terms of the background blur.


Redmi Note 4X battery life test

In battery, Redmi Note 4X can not only beat Iphone 7 Plus that we have reported before from Xiaomi official. After 14 hours 26 minutes navigation, it has 18% power left, and it can support 22 hours for e-books reading, 18 hours tv watching, 11 days standby, 162 hours music playing, even 15 hours game playing without problem.As for charging, it supports up to 10 W, so how is the battery? Right now we test Redmi Note 4X in 2 hours.

Under the circumstance of no inserting SIM, connecting Wifi, 50% brightness, we test watching videos online, reading e-books, playing games, playing wechat, music, watch live video for each 20 minutes, after two hours, the smartphone battery power has been down from 93% to 77%, it consumes 16% power. Redmi Note 4X can work in 12 hours without problems under this kind of heavy use.  Therefore the official test is reliable.

Redmi Note 4X Charging test

But it doesn’t support quick charge but 5V/2A standard, it is built in 4,100mAh battery, which can take two hours 40 minutes to charge it full. It’s good to know that Redmi Note 4X has no problem to use for one day.

We need to know that Redmi Note 4 has done well in heat issue. During test, we have no feel about its overheating. Therefore, Snapdragon 625 processor has reduced the power consumption and heat problem.


Xiaomi Redmi Note 4X has nice performance in power consumption, and it is also a competitive budget smartphone with more colors and lower power consumption, especially Redmi Note 4X MIKU version which appeals to most young users.

Update:  Exclusive Coupon From Gearbest 3rd Anniversary

1) Xiaomi Redmi Note 4X 4G Phablet – 3GB RAM 32GB ROM SILVER GREY
Flash Sale Price:  $183.99
Coupon code: 4xGB
After Coupon Price: $176.99

2) Xiaomi Redmi Note 4X 4G Phablet – 3GB RAM 32GB ROM CHAMPAGNE
Current Price: $231.63
Coupon code: notex3GB
After Coupon Price: $169.99


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