Reliance Jio, Airtel, Vodafone, and BSNL have jumped on the bandwagon of cheap 4G phones in India. Targetting this segment Jio Phone, Airtel Karbonn A40, Vodafone Micromax Bharat 2 Ultra, and BSNL Micromax Bharat 1 are trying to lure in the people who are still not connected to the world of internet. While the Jio Phone and BSNL mobile are 4G enabled feature phones, the Airtel mobile and Vodafone device are smartphones. BSNL Micromax device has cheap data offer, Jio Phone and Vodafone mobile promise refund amounts, and Airtel offers extra data benefits on its mobile. Recently Airtel announced another smartphone in partnership with Celkon.