I used a iPhone 5 for 3+ years and I found that every OS update performed worse and worse. I found that frustrating. So I'm not sure it checks the box of "light

I used a iPhone 5 for 3+ years and I found that every OS update performed worse and worse. I found that frustrating. So I'm not sure it checks the box of "lighter, snappier". I now upgraded to a refurbished SE and it's really nice so far.