I purchased this set of 3 iPhone Chargers by #theSMALLElectricStore for my kids' iPhones. My daughter has an iPhone 11 ProMax, My son has an iPhone 8+ , and my grandson has an iPhone 8 . It worked great on all 3 iPhones. I'll be upgrading my grandson's iPhone to the iPhone 12 ProMax and I'm glad to see I won't have to buy a new cord. That said I like the 10 ft cords as they can plug them into a smart plug near their beds and use their phones w/out worrying about putting added stress on the cords.Both my daughter and grandson love their cords and my son said it's the perfect length for working in bed on his iPhone. At $13.97 for 3 of these 10 ft cords it's a great buy. How long will these last? I don't know but for this price I really can't complain!