Existing customers can buy a 4G-dongle and install it in their existing (Ather) 450, and that will upgrade the connectivity to 4G.” Bookings may open soon, and the dongle may be available in a few weeks. It may be priced at Rs 2,500.
Source : Zigwheels.com in-conversation-with-tarun-mehta-athers-insights-and-future-plans-revealed