Technology Apple refreshes iMacs with powerful chips, graphics Updated : March 19, 2019 11:10 PM IST The new 21.5-inch iMac with Retina 4K display starts at Rs 119,900 and the 27-inch iMac with Retina 5K display will cost Rs 169,900. Both the devices are available starting next week, through Apple Authorised Resellers, the company said in a statement.