I chose the apple one. some people say it sucks and I kinda see their point maybe, but for my use case it has been perfect. For me it’s when I forget to charge my phone overnight and don’t have time to wait for it to charge. It’s a perfect stopgap solution until I can get a proper charge, at which time I can also recharge the apple battery. And it charges up really fast. Like it may not have an impressive capacity but it can keep your phone continually juiced up without having to stop to charge the phone itself. Like an inflight refueling. Like how the AirPods case battery can be charging while you use the AirPods so it’s kinda like you never have to charge them because you’re charging the case while using them and the case charges them up so you don’t have to think about it