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Xiaomi Mi 4S – Is it Worth An Upgrade? Mobile Tech 

Xiaomi Mi 4S – Is it Worth An Upgrade?

Xiaomi is known for its flagship devices, andtheir Mi devices are very popular as they live up to the expectations of the people. Though Mi devices are mid-range devices yet have all the features of high-range devices from Samsung, Sony, etc.

Like all Xiaomi phones, Mi 4S also has a non-removable battery. If Mi4S also lives up to its legacy of good quality Xiaomi phones or not, let’s find out.

Design and Display

Xiaomi is sticking to its dual-glass design in Mi 4s with improved grip and soft touch. Xiaomi Mi 4S has a 5-inch display with dimensions of 139.3×70.8×7.8mm. The build quality is premium, and it is soft to touch.

The phone is thin and light and has IPS LCD Full HD (1,080 x 1,920 pixels) display with a pixel density of 441 pixels, which is really impressive.

Above the display, we find LED light for notifications and 5MP front camera with sensors. Below the display are the 3 capacitive keys – back,home, apps. All keys are backlit which I personally really like.

On the right side are the metal power and volume keys. There is a hybrid sim lot on the left side of the phone, which means you can either you one sim and MicroSD card or both SIMs and no SD card. This is one feature that many users will dislike.

The Xiaomi Mi 4S has 3.5mm microphone jack at the top and second mic. This phone also has Infrared(IR) Blaster, which allows you to use your phone as a remote for supported devices like TV, Home theatre, etc. There is USB Type –C port at the bottom of the device.

The back of the phone has 13MP camera and dual LED at top left corner. There is an ultra-fast fingerprint sensor at the back which is always on. It will be available in four colours – black, white, gold and pink.


Known for the performance, this phone also lives upto our expectations and uses a very powerful processor. Xiaomi Mi 4S is powered by upper mid-range Qualcomm Snapdragon 808 MSM8992 chip. It uses 64 bit hexa core processor at 1.8 GHz, Dual Core, ARM Cortex A57 + 1.44 GHz, Quadcore, Cortex A53.

More number of cores allows more efficient use of multi-tasking. Xiaomi has provided 3 GB of RAM in this device and easily allows heavy multi-tasking.



Xiaomi Mi 4S runs on Xiaomi’s own UI MIUI7 on top of stock Android Lollipop 5.0.1. We have no idea why Xiaomi is using an old version of Android.We hope they update it to the latest version of Nougat or to Marshmallow.

MIUI is similar to iOS, and there is no app drawer in this phone. The notification area has two tabs – one for notification and for quick toggle settings. Xiaomi’s proprietary Search widget also works very well and generates a faster result.


Xiaomi Mi 4S comes with a 13MP rear camera. Photos are enhanced by dual tone LED, autofocus, digital zoom, digital image stabilization, Face detection, High Dynamic Range (HDR), and Touch to focus.

The camera interface is very simple and comes with 12 live filters to further enhance your photos for social media. The Xiaomi Mi 4s is capable of recording up to 1080p @ 30fps and also supports slow motion video.

This phone has internal memory of 64GB, which is good for storing large pictures.

Xiaomi Mi 4S features 5MP front camera which is good for social media pictures.


Xiaomi Mi 4S comes with an internal storage of 64 GB and can be further expandable up to massive 128 GB using the hybrid slot. Please note this phone has hybrid slot which means you cannot use two SIM and microSD card simultaneously. You either have to use one SIM and card or both SIMs and no card.


Xiaomi Mi 4S uses 3,260mAH battery fixed inside the non-removable back cover. Xiaomi Mi 4S uses USB Type –C port and also supports fast charging. It is provided with a fast charger of (5V/2A, 9V/1.2A, 12V/1A). The battery reaches to 35% in almost 30 Mins which is not really great but still better than the normal charging.


Xiaomi Mi 4S is a dual SIM(4G + 3G) Phone with hybrid SIM tray meaning you cannot use both the SIMs and micoSD altogether. You have to choose between one SIM and microSD card.

The hybrid SIM Tray is located on the left side of the device. Xiaomi Mi 4S doesn’t support FM but comes with an Infrared blaster.

The Verdict

Xiaomi Mi 4S lives up to the legacy of its predecessor and does a good job at it. Xiaomi Mi 4S is an upgraded version of MI 4 with a fingerprint scanner and better battery.

The display is average, and battery life is good. The Snapdragon 808 does the job but maybe prone to throttling. Xiaomi Mi 4S price is India is expected to be Rs17,990. For more information, visit

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