Yes it can, although not as fast as using the cable. And your phone will get warm during charging. It’s good to use as a quick charge but I wouldn’t use it to charge a dead phone. 2016 Prius 4 Touring Instagram - LowGen4
I tried it out yesterday on my iphone X. I was in the car for around an hour and a half. When i started my phone was at 40% and by the time I got there it only reached 57%. I would stick to using the cable to charge it.