3 ms·I just had battery replaced on my 6s. It still sucks.by asadlionpk 8y agoI just had battery replaced on my 6s. It still sucks.saagarjha 8y agoPerformance wise?pivo 8y agoI just upgraded from a 6s plus to an XR. For me it’s slightly faster, though I would never have done it if it weren’t subsidized by my company. My 6s was plenty fast for me.