Jio launched a very good 4G smart phone. This smart phone having 512 MB RAM and 4 GB ROM. This smart phone having 2MP rear camera and 0.3 MP front camera. This smart phone is trustful. This mobile giving unlimited voce call, ( Data and 100 sms) - Daily for 1 month at only 49 rs. Jio smart phone is a android phone. We do not connet hostport and wifi in this Jio phone. This mobile offer is very usefull for youtube, facebook, video call, etc. I am very happy from this mobile. I am also using whatsapp by download via website.