I had an S3 from launch for ~7 years before switching, and it was completely unusable by the end. Most websites and big-name apps halve in performance every 18

I had an S3 from launch for ~7 years before switching, and it was completely unusable by the end. Most websites and big-name apps halve in performance every 18 months or so. Doesn't help that your battery will be on its last legs by then. 2 years is definitely much more often than required, but until ad-tech corps and web developers call off the assault, we're stuck on the phone treadmill to some degree.