Oukitel touts its new WP15 as a "5G battery monster", as well it might, as the phone has once again pushed the limits of capacity with a 15,600mAh rating. It is also a rugged device, with IP68, IP69K and MIL-STD-810G ratings. It will be launched later in August 2021, but can be pre-ordered from now.
https://www.notebookcheck.net/Oukitel-teases-its-upcoming-WP15-as-the-5G-smartphone-with-the-biggest-battery-on-the-market.555237.0.html