Vivo just launched its latest mid-range X21 smartphone in the ‘X Series’ in India as it had promised. It has a 6.28-inch FHD+ 19:9 Super AMOLED display with a notch, 90.3% screen-to-body ratio, 1.66mm narrow bezels on the sides, 1.79mm bezels on the top and 5mm on the bottom. It is powered by Snapdragon 660 with 6GB RAM and runs Android 8.1 (Oreo) with Funtouch OS 4.0 with A.I features powered by dedicated Qualcomm AIE Artificial Intelligence Chip along with the Snapdragon 660.