Not everyone is an iPhone pro, a lot of people need help figuring out exactly which iPhone they have so we made a short identifier list here for your benefit. Just check the model number on the back of your iPhone for:
iPhone 3g: Model A1241- Rounded plastic back housing with grey lettering
iPhone 3gs: Model A1303- Rounded plastic back housing with chrome lettering
iPhone 4: Model A1332 or A1349- Flat glass back housing
iPhone 4s: Model A1387- Flat glass back housing
iPhone 5: Model A1428 or A1429- 4” Screen, Aluminum back housing
We DO NOT take the original iPhone 2g which is model A1203 with silver metal back.
If you have any other questions just visit our help center and ask us a question.