Thinkpads have been water resistant for many many years now. Recently, this video[1] shows coffee, wine, water being poured on a T440s without problems. The thi

Thinkpads have been water resistant for many many years now. Recently, this video[1] shows coffee, wine, water being poured on a T440s without problems. The thickness of that laptop is 0.8in. This laptop comes with 2 separate replaceable battery so you can even hot swap them. Recent thinkpad X1Cs are only 0.65in and have user serviceable batteries via just a couple screws. So it's definitely not a crazy hard feat to pull this off. Granted this is not a waterproof laptop, it is simply water resistant (no dropping into the pool). However, that seems to be what you're asking for in your original reply. The only question remains what you believe to be "substantially thicker than a modern smartphone". [1]: https://youtu.be/0U5n2WaMMHo?t=60 https://youtu.be/0U5n2WaMMHo?t=60