Vivo V21 5G smartphone was launched on 27th April 2021. The phone comes with a 6.44-inch touchscreen display with a resolution of 1080x2404 pixels and an aspect ratio of 20:9. Vivo V21 5G is powered by an octa-core MediaTek Dimensity 800U processor. It comes with 8GB of RAM. The Vivo V21 5G runs Android 11 and is powered by a 4000mAh battery. The Vivo V21 5G supports proprietary fast charging.

As far as the cameras are concerned, the Vivo V21 5G on the rear packs a 64-megapixel primary camera with an f/1.79 aperture; an 8-megapixel camera with an f/2.2 aperture, and a 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It sports a 44-megapixel camera on the front for selfies with an f/2.0 aperture.

The Vivo V21 5G runs Funtouch OS 11.1 is based on Android 11 and packs 128GB of inbuilt storage that can be expanded via microSD card. The Vivo V21 5G is a dual-SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM cards. The Vivo V21 5G measures 159.68 x 73.90 x 7.29mm (height x width x thickness) and weighs 176.00 grams. It was launched in Arctic White, Dusk Blue, and Sunset Dazzle colours.

Connectivity options on the Vivo V21 5G include Wi-Fi, GPS, Bluetooth v5.10, USB OTG, USB Type-C, 3G, and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, gyroscope, proximity sensor, and in-display fingerprint sensor.