Vivo X21 UD with Under Display Fingerprint Scanner – Review, Specs and Price

Vivo is really taking pride in what they do best by announcing the Vivo X21 UD, a smartphone with under display fingerprint scanner. The Vivo X21 UD was announced alongside the Vivo X21 which has its own fingerprint scanner at the rear.

This isn’t the first time Vivo is introducing a smartphone with this feature, the X20 Plus UD has the under display fingerprint scanner as well. Apart from the unique features, the Vivo X21 UD boasts of 6GB RAM and 128GB storage as well. Stay with me, lets explore this innovative device.

Buy Vivo X21 UD & Pay On Delivery

GearBest |from $53 [eafl id=”27981″ name=” ” text=”Click HERE For Best Offers!”]

Jumia Ghana |from GH?159 [eafl id=”17212″ name=” & Tablets” text=”View Price Offers, Click Here”]

Jumia Nigeria |from N13,995 [eafl id=”15289″ name=” Tablets” text=”View Price Offers, Click Here”]

Jumia Kenya |from Ksh3,530 [eafl id=”15574″ name=” & Tablets” text=”View Price Offers, Click Here”]


Vivo X21 UD

There’s no big of a difference at the rear, well except for the missing fingerprint scanner. The Aluminum Alloy overall unibody still reflects light beautifully, and perfect to flaunt when out and about. The vertical dual rear camera is the only attractive feature at the rear here.

Under the dual shooter lies a dual-LED flash that’s ready for night shoots. Moving further, it measures the same 7.4 mm in thickness and weighs just 156.2g. Not only is it sleek, it’s very easy to operate with one hand as well. You can also get it in Aurora White, Ruby Red and Black colors only.


Vivo X21 UD

The under display fingerprint technology on this screen, allows you to unlock the smartphone in 0.1s by placing your registered finger on the bottom corner. Vivo isn’t new with this top-notch display trend, the Vivo V9 sports the trending feature as well. But its obvious the notch on the Vivo X21 UD is as minimal as possible, housing just the selfie camera, speaker grille and ambient light sensor.

The screen on the X21 UD stretches up to 85.2% screen to body ratio, but not as impressive as the 91% screen to body ratio on the Vivo Apex. The Vivo X21 UD sports a 6.28-inch Super AMOLED FHD+ capacitive touchscreen. With an impressive resolution of 2280 x 1080 pixels and 402 pixel per inch density offering immersive visuals at will.

Hardware and Software

Houses the same Qualcomm Snapdragon 660 chip with an Octa-core processor and 64-bit CPU architecture. The 8-cores of processor clocks at 2.2GHz and has a 14nm process technology for fast performance. The Qualcomm Adreno 512 graphics processor rules graphics.

Coming with a massive 6GB RAM space and runs at 1866MHz in terms of memory speed. There’s only one version here in terms of storage. To experience the under display feature, you need to get it with 128GB storage. Upgradeable up to 256GB and runs smoothly on Android 8.1 Oreo with Funtouch OS 4.0 skin on top.


The dual 12MP + 5MP camera at the rear of the Vivo X21 UD has f/1.8 and f/2.4 aperture respectively. The camera has 1.4 µm pixel size, dual-LED flash, depth of field, professional mode and other features. With this device you can capture photographs with 4000 x 3000 pixels in dimension. On the top-notch, the 12MP selfie camera reigns with f/2.0 aperture for the best selfies.


Powering the Vivo X21 UD is a 3200mAh Non-removable Li-Ion battery with fast charging technology. With the fast charging feature, it shouldn’t take more than 1.7 hours to fully charge up the battery from 0% to 100%.


Vivo X21 UD Full Technical Specifications


Device Type Smartphone
Model Vivo X21 UD
Announced March, 2018
Released March, 2018
Status Available on Shopping stores


2G Network Yes
3G Network Yes
4G Network Yes
SIM Type

Nano + Nano

SIM Count Dual SIM


Type Aluminum Alloy
Dimensions 154.5 x 74.8 x 7.4 mm –
Weight 156.2g
Protection Yes
Colours Aurora White, Ruby Red, Black


Display Type Super AMOLED FHD+ capacitive touchscreen
Size 6.28-inch
Resolution 2280 x 1080 Pixels
Colors 16M colors
Pixel Density 402ppi
Screen-To-Body Ratio 85.2%
Touch Screen Yes
Protection Yes
Features Multi-touch, Scratch Resistant
Secondary Display No


12MP + 5MP
Continuous shooting 
Digital zoom 
Exposure compensation 
Face detection 
ISO settings 
Scene mode 
Touch focus 
White balance settings
Yes, dual-LED


Android 8.1 Oreo
Funtouch OS 4.0
Skype Yes
Whatsapp Yes
Facebook Yes
Youtube Yes


Qualcomm Snapdragon 660 SDM660
CPU Octa-Core 2.2GHz
GPU Qualcomm Adreno 512
Internal Storage 128GB
Yes, up to 256GB

Fingerprint (Screen)
Ambient Light

Controls Touchscreen, Lock Button, and Volume Key


Infrared No
Wi-Fi Yes
Wi-fi Hotspot Yes
USB Type Yes, microUSB
GPS Yes, with A-GPS
Facial Recognition No


Battery Type Li-Ion Battery
Capacity 3200mAh
Placement Non-removable
Fast Charging Yes
Talk Time
Music Play


Yes, 3GP, Mp4, MPEG4, H.263, H.264 player
Vibration, Ringtones


Other Features

– MP3/WAV/eAAC+/FlAC player
– Active noise cancellation with dedicated mic
– DivX/Xvid/MP4/H.265 player
– Photo/video editor
– Document viewer

==> Disclaimer: Specifications, features & price shown for the above device was entered manually. We can not guarantee that the info on this page is 100% correct. If you think that any information for the current device is wrong or missing, please don’t hesitate to Contact Us.

What is Vivo X21 UD Price and Availability Status?

The Vivo X21 UD will be available on Shopping stores from April starting from $599 (N200,000) to $649 (N220,000). Click on the links above to view the latest Vivo X21 UD price & availability.

NOTE – if you have difficulties ordering this product yourself, you can contact us on mobile via +2348100482812 or drop your comment below.

Show us some love by Sharing! TechVaz wants to hear from you, use the comment box below…

author image

About Author

Samuel Afolabi is a lazy tech-savvy that loves writing almost all tech-related kinds of stuff. He is the Editor-in-Chief of TechVaz. You can connect with him socially :)

4 thoughts on “Vivo X21 UD with Under Display Fingerprint Scanner – Review, Specs and Price”

  1. The competition in smartphone world are really making smartphone company to make amazing phones and excellent features this day! This phone is excellently awesome! Nice review by techvaz team!


Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.