TL;DR: If you are expecting Anker level quality this isn’t it, and the specs are lower than advertised and just usable.

I like the design, but the specs are maybe overshooting. As far as i can tell (from an hour of using) the charging speed fluctuates greatly. When I first snap it to the phone, the speed is fast (according to apple’s integrated speed test feature on ios26), but after a few minutes the expected time to 80% grows and grows until it just says slow charger. It does fluctuate further, but around 2min/% is the average (iphone 17). As for the capacity, it looks to be about 1 % lost per iphone % gained, which is less than advertised. Im not sure if I want to spend more than 80% for this, so i will keep testing it.