Vivo X21 Review: A Perfect phone with Under Display Fingerprint !


We get Antutu Score of 98285 and certain other scores are also good. With this screen size and great selfie and under display fingerprint, they have also given all the sensors which are required by any normal person. We can also use VR with this device as it supports gyroscope sensor. Even while using GPS it will give you proper accuracy as it also has magnetic and orientation sensor.

When it comes to the gaming section, we can play nearly every game. Even on the highest level for Asphalt 8, I have not experienced any latency or frame dropouts in my usage. Every game functions flawlessly, even at the most advanced settings. I’ve tested running the majority of games, including Asphalt 8, Shadow Fight 3, Batman, and Bully, on an Adreno 512 GPU with a Snapdragon 660 processor for optimal performance. Pubg is operating smoothly on HDR and High settings, with no lag or problems. In the lengthy gaming sessions I’ve had in Delhi, India, I have also not experienced any temperature problems.

Vivo X21 Camera


Vivo X21 features dual camera sensors (12MP+5MP) on the rear end. The dual camera makes use of the face detection autofocus technology, dual pixel technology, and AI support. It produces an image with good natural looking colors even in indoor and low lighting. When it comes to the camera and picture’s quality, we are often worried about the uneven blurs in the picture, but the rear camera portrait mode of Vivo X21 effectively manages to detect edges and evenly blurs the subject from the background.

In low light photography, I would say it took good shots but you need to fix the noise by using Lightroom or Photoshop. The images came out really good with some great colors and saturation. Rest, I have already posted some camera shots downside.


Coming to the front part here we get a large 12-megapixel sensor for selfies with a front display flash and no front flash as it comes with a top screen notch in it. I would say taking selfies in good light as well as no light will come out really good.

Rest, we also have a different option in the camera application which we can use and fiddle up with to get better shots.

Vivo X21 Camera Samples

Vivo X21 Software

Out of the box, Vivo X21 comes up with Android 8.1 Oreo with the skin of Funtouch OS 4.0 running on top of it. This OS seems to be inspired by iOS and is not having any app drawer. Rest you can also change different themes by downloading it from their itheme application. Rest there is nothing much which I think must be explained over there. The UI seems to be very smooth and lag free. Rest there are many new small features like eye protection, power saving mode and the best one is gesture navigation where you can ide the below on-screen navigation and use full display perfectly by using gestures to go back, which will help you in the day to day usage.

Vivo X21 In-Display fingerprint sensor


The major feature of this smartphone is that it’s the first smartphone which consists an in-display fingerprint sensor. Because of this in-display sensor, there is no need to add a physical fingerprint sensor and home button on the device. Hence, an in-display fingerprint sensor in Vivo X21 is the center of attraction and deserves all the attention and publicity. Moreover, when it comes to the quality of the sensors, it’s fast, consistent and it even works with wet hands. You can even change the fingerprint animation according to your usage and personality.

Vivo X21 Battery


Vivo X21comes up with 3,200mAh battery. Overall it took about 1 Hour 15 minutes to charge from 0 to 100% from their default charger. Even with my heavy usage with containing whole day Wifi Hotspot+dual Sim+ Whole day calling and messaging and browsing. Until the end of the day, I left with 25% of battery. The device supports quick charge 3.0 which makes the device charge really fast. This means you need to worry about battery while using the phone it will last you long.


For selfie, notch and show off lovers, it is going to be a great device. Overall in daily usage, you won’t find any issue. Under display, the fingerprint is just another love.


  • Great Selfie Camera
  • Software Optimisation
  • Good audio quality
  • Fast fingerprint sensor ( Under Display Fingerprint sensor)
  • Great face unlock
  • Very Lightweight and Handy
  • Glass and metal body


  • High Price
  • No USB Type-C
  • Battery can be improved
Avatar of Nishith Gupta

By Nishith Gupta

Hello Folks! Myself Nishith, popularly known as Nick. Yes, the same guy who's the Founder and Editor of Techniblogic. On records, I've done MBA in Marketing. Outside records, I'm a tech savvy and love to fiddle and write about the gadgets. World of cool gadgets always left me amazed and curious. So, If you want to know more about new gadgets, tech stuff just stay connected with me and our team.


  1. New Vivo X21 is the first ever smartphone with an invisible fingerprint sensor that you can actually buy. This is one of the standout features of the device for a very solid reason.

  2. The Vivo X21 is a slim, gorgeous looking, light weight smartphone with good chipset performance, expected camera outputs and sustainable battery.

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