The Jio Phone is a 4G and VoLTE enabled feature phone from Reliance. It has a single Nano-SIM slot and works only on the Reliance Jio network. It has a 2.4-inch display with a resolution of 240 x 320 pixels. It had a D-pad for navigation and a numberpad for dialing and typing. Powering the phone is a dual-core processor along with 512MB of RAM. There is 4GB of internal storage which is shared between user storage, apps and software updates . Storage is expandable via a microSD card slot upto 128GB. The phone runs on KaiOS and has all Jio apps preinstalled. It also has a basic voice assistant .