Vivo Y21 comes with decent overall specifications and good main camera. The main USP off the device is its large expandable memory. Taking the overall features and price into consideration it does appear to be a good option.
The Vivo Y21 is elegantly designed with a varnish coating on the back cover and is slim at just 9mm of thickness. It flaunts a 4.5-inch IPS LCD capacitive touch screen which has a resolution of 480 x 854 pixels with a pixel density of 218ppi. It houses a 1.3GHz quad-core MediaTek chipset supported by 1GB RAM and has Mali-400 MP taking care of graphics. The device is run by the Funtouch OS 2.1 based on Android 5.1 Lollipop.
The Y 21 has a 5 MP primary rear camera equipped with LED flash, Autofocus, etc. and also sports a 2MP front camera for selfies and video calling. The camera provides useful features like voice capture, palm capture, PPT and Bokeh scene modes for enhanced photographic experience. It is powered by a 1,900mAh li-Ion battery.
The Vivo Y 21 has an internal memory of 16GB and can be expanded up to 128 GB with the help of a micro SD card. The device has dual SIM functionality and its connectivity options include WI-Fi, Bluetooth, GPS, micro USB 2.0 and 3G.