https://thenextweb.com/apple/2018/07/14/report-apples-iphone-6-has-the-highest-failure-rate-among-iphones-but-samsung-is-worse/

A recent study of the past five years’ worth of iPhone releases saw that the iPhone 6 was, hands down, the worst Apple handset release in recent memory. Both the iPhone 6 and 6s models (regular and Plus) topped the chart of least reliable Apple handsets, according to the “State of Mobile Device Repair & Security“ report issues by Blancco, a data erasure and security firm.

The 6 was notoriously bad, with a staggering 22 percent failure rate. For those keeping score at home, that means more than one in five of the handsets required repair or replacement at some point. Even the 5s was deemed more reliable, with a mere 5 percent failure rate.