I want to buy a SIM free iPhone to use in Europe. Is it true that now all iPhones are GSM (inc. Iphone 8 & X)? Thanks!

I would ask the store to be 100% sure. But now a day all new flagship phones are Global phones

All Iphone are GMS... but iPhones are really good to use out in Europe... you just have to check with your carrier..

All the iPhones are GSM, and the ones from Verizon a Sprint are GSM and CDMA, Verizon ones are unlocked, you can ask in the store, but iPhones are good for traveling abroad, they have s lot of LTE bands

Thank you all!