The phone comes with a 6.50-inch touchscreen display offering a resolution of 720×1600 pixels. Vivo Y21 is powered by an octa-core MediaTek Helio P35 (MT6765) processor. It comes with 4GB of RAM. The Vivo Y21 runs Android 11 and is powered by a 5000mAh battery. The Vivo Y21 supports proprietary fast charging.
As far as the cameras are concerned, the Vivo Y21 on the rear packs a dual camera setup featuring a 13-megapixel (f/2.2) primary camera, and a 2-megapixel (f/2.4) camera. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring an 8-megapixel sensor with an f/2.0 aperture.
The Vivo Y21 runs Funtouch OS 11.1 is based on Android 11 and packs 128GB of inbuilt storage that can be expanded via microSD card (up to 1000GB) with a dedicated slot. The Vivo Y21 measures 164.26 x 76.08 x 8.00mm (height x width x thickness) and weighs 182.00 grams. It was launched in Midnight Blue and Diamond Black colours.
Connectivity options on the Vivo Y21 include Wi-Fi, Bluetooth v5.00, and USB OTG. Sensors on the phone include fingerprint sensor.