Phones are supported for 5-7 years across the major makers. My battery is down to 70% of its original capacity in half that time, no longer able to make a full

Phones are supported for 5-7 years across the major makers. My battery is down to 70% of its original capacity in half that time, no longer able to make a full day's use. Being able to easily swap in a brand new battery at the half way point in a phone's lifetime and get back to full day usage so typical overnight charging instead of needing a second mid-day charge cycle, is a huge win. That you think a 3 or 4 year old phone is outdated when the makers support it for up to twice that long is ludicrous, and even then it's silly to have to toss it because the maker won't provide further security updates. I'd use a phone 10 years, about what I use my laptops for, if the battery was easily replaceable. Instead, they land in a drawer every 3-4 years when the battery isn't good enough and a the cost of manufacturer replacement in dollars and downtime is so exorbitant that I just buy a new device.