The Razer Kishi comes in four flavours and can charge your smartphone as you game, thanks to pass-through charging. Generally, most Razer Kishi controllers cost US$99.99, but Amazon is offering between 30% and 43% savings for all versions.
https://www.notebookcheck.net/Razer-Kishi-Universal-mobile-game-controller-down-to-US-44-99-in-at-least-30-off-deals.583917.0.html