IPhone8 64GB UK Used IPhone8 256GB UK Used Iphone6 16gb uk used 0 out of 5. Answer (1 of 10) In general, yes it will work Both phones use the same SIM card form factor, so it will fit The big sticking point is if there is a carrier lock on the device you want to use To use the parts listed in this question as an example, let’s say the SIM card being used in the iPho. Https//googl/GEQ6z1How to transfer your data from iPhone/iPad to Mac https//wwwma.