Xiaomi Redmi Note 4 Design, Antutu, OS, Camera, Battery Review(Coupon Limited)

Xiaomi has officially announced Xiaomi Redmi Note 4 yesterday in Beijing. It’s different from before that this new product press conference is co-held with China Mobile, and it’s rare movement for Xiaomi and China Mobile, after all it has only released Redmi 3X with China Unicom. Xiaomi wants to take advantage of offline store to gain more market share. Different from Xiaomi Redmi Pro, Redmi Note 4 has lower hardware such as dual rear camera, metal design, Helio X25 processor that have not been used on Redmi Note 4. But Redmi Note 4 has the similar specs that it should be.  To be specific, Redmi Note 4 uses CNC diamond craftsmanship and metal body. It has 5.5inch to keep good holding feel. In addition, Redmi Note 4 has 2.5D glass covered, like Redmi Pro, but it will be a challenge for sticking the screen protectors.

There is no Xiaomi Logo on the front, only can be seen in the back. It has 151*76*8.35mm dimension, 175g weight, compared with Redmi Note 3, it keeps same dimensions, but increases the weight. Of course, it doesn’t change a lot in its appearance, and it has silver, grey, and silver color options.

As for hardware, Redmi Note 4 has used 5.5inch 1080p screen, powered by Helio X20 processor, the advanced version has RAM 3GB ROM 64GB, and standard version is RAM 2GB ROM 16GB, it provides 5MP front camera, F2.0 aperture/ the second generation 36 leve smart beautification and a 13MP back camera with 5p lens, F2.0 aperture, PDAF function, it has 4,100mAh battery to support dual sim card,dual standby, netcom 2.0 and Micro SD card expansion. Meanwhile, it can support back fingerprint scanner.

It’s worthwhile to mention, Redmi Note 4 is the first smartphone to preinstall MIUI 8 OS. The other new models released before needs to update to MIUI 8 OS.






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It is preinstalled MIUI 8 OS based on Android 6.0 OS, you can read this article about what has changed in MIUI 8 OS !


Although Redmi Note 4 has no such powerful hardware as Redmi Pro, the kind of price is very affordable. It can handle big app by Helio X20 and RAM 3GB.


We need to know that Redmi Note 4 is powered by Helio X20 2.1GHz, there is the other 2.3Ghz version which is more powerful, but this 2.1GHz version is enough to be used.





The antutu test score is 84934 which is the normal performance of Helio X20.


When other brands uses commonly the quick charge, Xiaomi is out of date in fact, except Xiaomi mi4, Xiaomi mi note, Xiaomi mi5, etc to use quick charge power adapter, others don’t have. But parts of products have hardware to support quick charge, after using quick charge adapter, it can be charged fast. As usual, Xiaomi Redmi Note 4 uses 5V/2A charger, 10W power rate in theory, It’s a little small for 4,100mAh battery.



Due to limited time, we test it when it has 50% power, using the original power adapter, it needs 1 hour to charge full. Therefore, it will take over 2 hours or 2.5 hours to charge it full from 0 to 100%.

As for battery life, we play the video by IQIYI app, it consums 13% power in one hour without overheating problem. The battery temperature keeps 35 degrees.


With the improvement of smartphones’ hardware, a mid-range smartphone can also have good camera, Redmi note 4 will not be exception.

Redmi Note 4 comes with 5MP front camera and 13MP back camera, the front one supports beautification, the back can support PDAF.

Due to the nice optimization for UI, and PDAF, Redmi Note 4 has very fast focusing speed, and it satisfied us to launch the camera fast.When taking photos under enough light, just pressing the shutter to finish photographing, but under the dim light, the exposure time will be prolonged automatically.






About samples, due to time, we don’t test the photos in the day, but in enough indoor light, Redmi Note 4 shows nice white balance, no obvious color partial, which makes us accept.

In dim light, Redmi Note 4 shows very commonly, we can see pixels clearly. So if we want to capture the object, it will be not very good, after all, it only sells at 899 yuan.


Whether you like Xiaomi brand or not, we can’t deny that Redmi brand has created a great sales in the past few months. Redmi series keeps the powerful hardware and very competitive price to win many users’ heart, so does this Redmi Note 4. Will you try it to compare others? Don’t forget to share with us. By the way, you can enjoy 4% off coupon code: 4AndroidPhones for  3/64GB version and  2/16GB version.

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