Japan only, but KDDI/Kyocera never stopped IP rated phones with removable battery. TORQUE G07(2026) is IP65/68/69 rated with a coin key locked removable back cover.

It also officially support submersion in seawater as well as cleaning with soapy water. Most glued phones support neither.

1: https://k-tai.watch.impress.co.jp/docs/news/2088291.html