Vivo Y21 has a 6.67 inches Fluid Full HD IPS LCD screen. It has its front camera beautifully placed in the most convenient place. It has a Double(13+2 MP) camera arrangement at the back with PDAF and macro, and the Main Camera feature is LED flash. Ultra HD video recording which is the same setup. The main camera depends on a 13 MP camera behind the f/2.2 wide lens. the main or back camera can record 1080p video with 30FPS. It has Night Mode but there is no autofocus. Vivo Y21 has a front camera of 8 MP and an f/2.0, (wide) lens.
It comes with a 5000 mAh Li-Po battery with 18W fast charging which is decent. You can buy this phone with 4 GB RAM, up to Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) CPU, and PowerVR GE8320 GPU. The phone is powered by a Mediatek MT6765 Helio P35 (12nm) chipset. The phone comes with 64/128 GB internal storage and there is a MicroSD slot in this phone. There is also an optical fingerprint(side-mounted) sensor in this phone which is standard.
Vivo Y21 has all the other regular features like Dual SIM. USB Type-C 2.0, OTG, accelerometer, gyro, proximity, compass, etc. Vivo Y214GB RAM lets users save their important documents and popular games within a 128GB expandable internal storage. This is the best variant to go for as 4GB RAM is good sufficiency for most of the things you'd expect to do on your smartphone. Though it costs a little more if the users buy the 4GB RAM and 128GB ROM Version there will be no worry to upgrade to a new phone for a long time.