Apple is expected to unveil new models of its iPad Air in March 2016 and production will start in the second quarter, with General Interface Solution and TPK Holding to supply touch panels, according to Taiwan-based supply chain makers. The new 9.7-inch device will reportedly come equipped with a 4K resolution panel and up to 4GB in RAM, in addition to improved battery life. Apple believes that despite a decline in the tablet market and increased competition globally, it still has a base of dedicated customers who are looking to upgrade their iPads, the makers noted.