5. Which device does the i1 support?

A: i1 is compatiable with the Apple devices whose OS is iOS 8.0 or above and they are as follows: 
iPhone X/iPhone 8/iPhone 8 Plus/iPhone 7 Plus/iPhone 7/iPhone SE/ iPhone 6s Plus/iPhone 6s/iPhone 6 Plus/iPhone 6/iPhone 5s/iPhone 5c/iPhone 5

iPad Pro(9.7-inch)/ iPad Pro(12.9-inch)/iPad Air 2/iPad Air/ iPad(4th generation)/iPad mini 4/iPad mini 3/iPad mini 2/ iPad mini

iPod touch (6th generation)/ iPod touch(5th generation)