TOTP tokens are waterproof and durable for use in extre

Recently I started thinking about buying a TOTP token for work on the road, where the conditions can be quite extreme. I often go to places with high humidity or a lot of dust, and my phone has let me down more than once. I think I need a token that can withstand such conditions, ideally a waterproof one. Has anyone encountered this? Is it possible to find something reliable?

Yes, such devices exist. I personally use a token on hikes where I am constantly exposed to rain and dirt. There are good options, for example, hardware totp token, which are waterproof and can withstand physical stress. I have had a token for a year now and have had no problems, even in the harshest conditions.