What's the difference OEM VS OEM-compliant
So I was reading around a bit here and someone mentioned etrades, so I looked them up and found the iPhone 7 LCD screen / digitizer there and I see a bunch of different grades the highest is an S+ for for $81 and an S for $64 I'm trying to save a few bucks so I'm wondering is the S+ Necessary ? The only difference is glass and flex cable OEM and OEM-compliant, what's the difference between those 2?
Ist dies eine gute Frage?