Despite its small size, (which i like, fits in palm of hand, can charge other tech stuff as well as itself, rapidly. And doesnt use iup its battery, aswell. And nice to look at ([ got seafoam) other than black or gray.
I confess I bought this only because of the color - I have an older black version but this looks so cute with my phone! And it's a little updated from my previous one, which I gave to my husband : )
I think a smaller footprint could be achieved using LiFePO4 batteries which have 5000 cycles or even LTO batteries which have ***** cycles. So many of these power banks end up in the trash in a couple years. We need longer lasting batteries even if they are slightly heavier.