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Vivo X21 with In-Display Fingerprint Scanner- Features and Performance

Mobile Phones

Vivo X21 with In-Display Fingerprint Scanner- Features and Performance

Vivo announced their latest flagship device in India, the X21, which is the first smartphone to feature an in-display fingerprint scanner. Vivo X21 was first showcased at Mobile World Congress and it is currently the flagship device for the company. Vivo X21 comes with a 6.28-inch Full HD+ resolution display and is powered by Snapdragon 660 Octa-core processor with 6GB of RAM and has 128GB of storage included. It also comes with a dual camera set up along with 3200mAh battery.

So how does the in-display fingerprint scanner work on Vivo X21? Let’s have a closer look at the technology.

Vivo X21


In-Display Fingerprint Scanner- Industry first

Vivo X21’s in-display fingerprint scanner makes the design easier without the need for allotting a separate place on the rear panel or below the display for a fingerprint scanner. The Vivo X21 packs a Super AMOLED  display and the fingerprint scanner is on the display.

Configuring the fingerprint scanner is quite easy and it is similar to how you configure it on other smartphones. Once the fingerprint is registered and when the user touches the screen for unlocking, the OLED display emits light to illuminate the finger which is placed on the display. The fingerprint scanner captures the fingerprint with the light reflected and the sensor then processes the optical signals to deliver crisp and sharp fingerprint images for matching.

When the phone is lifted by the user for unlocking, the display shows the area for unlocking and an icon will appear on the display. While the phone is in the pocket, this icon will not lit up.

Here is a video demo of the unlocking process.

The performance of the fingerprint scanner is extremely good and it is responsive and unlocks the device in quick time. Even though this is an industry first, the performance of fingerprint scanner is good and Vivo has done a commendable job here.


Other Features of Vivo X21:

1. Dual Camera:

Vivo X21 packs a dual camera, a primary 12MP camera with F/1.8 aperture, 5MP secondary depth-sensing camera and a 12MP front camera with f/2.0. The camera has dual pixel sensor and with the larger photographic area of each pixel, the phone is able to provide excellent picture quality. The overall camera quality is pretty good and the best camera smartphone to date from Vivo in India. It also comes with AI and it can detect and identify 18 tags and 140 scenarios such as portraits, food, and plants as it shoots. Apart from this, the camera also features face beauty, HDR, scene detection and more. Here are some samples from the device.


2. Super AMOLED Full view 19:9 display:

Vivo X21 packs a 6.28-inch Full HD+ display which has a Super AMOLED panel and 19:9 aspect ratio. The display quality is very good and colors are vivid and vibrant and touch response is also quick. The display is also protected by Corning Gorilla Glass.



3. Design and Build Quality:

Vivo X21 packs a 6.28-inch Full HD+ display with 19:9 aspect ratio and it has a near bezel-less design. It is made of aluminum and glass and offers premium build quality for a flagship device. The back panel has a premium glass finish and has tapered edges and it feels good in hands. The glass panels on the front and back also get gorilla glass protection.


4. Good Performance:

The device is powered by Snapdragon 660 and has 6GB of RAM and 128GB of storage. This combination offers good performance and it offers a smooth experience. There is also gaming mode available. The system will automatically adjust the CPU to optimize performance based on the game you are playing. If you are playing a high graphics resource game, it makes sure that you get a smoother experience. There is also an AI Game mode which will prevent any accidental touch operation to make the gaming experience better.


5. Extremely fast Face Unlock:

Vivo X21’s face unlock feature is probably the fastest we have seen on a smartphone. With IR sensor on the front, the face unlock is extremely fast and accurate. The face unlock works flawlessly even in extremely low light conditions. Here is a video demo of the face unlock on the device.

Nirmal is a Technology Blogger and a Microsoft MVP in Windows. He can be contacted at You can find Nirmal on , and .

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