Many devices makers are now lining up 4G-compatible phones (especially in the sub-Rs 10,000 category) as operators like Reliance Jio gears up to launch the high-speed Internet service in the country. Currently, Airtel and Aircel are the only two operators offering 4G services in certain parts of the country. Lenovo's A6000 and A7000, Yu's Yureka and Xiaomi Redmi Note 4G are some of the devices that hit the Indian market in the sub Rs 10,000 segment recently.