As an aussie kid I bought into the whole sunscreen hype, but after more than half a dozen failures/partial failures. I've pretty much given up on the stuff (excluding areas that are difficult to protect fully with coverings, neck/face/etc).

Long sleeve thick cotton shirts, long pants, and a good wide brimmed hat are easily ten times more effective in practice. My old hard as a tack, shearer grandfather used to swear by black picnic umbrellas (great option if you are spending time working in a fixed location).

Of course you can't swim that well in long sleeved clothes hence the popularity of sunscreen. I'm totally against Aussie beaches at this point though, yes they are nice and all but the radiation dose is just nuts.

Would love to see something like the Apple Watch include UV dosimeter functionality.

> [Smart] watch include UV dosimeter functionality

This is actually a fucking great idea!

I presume, the location and orientation variation at the wrist probably makes for a good baseline exposure measure.

Quite honestly, either direction would be super useful data. Would be nice to get a warning/notification for too much, or too little sun exposure. Long term pooled population data would be invaluable, too.

Also, while we're at it, please throw in an actual dosimeter, x-ray/particle detector too. Not that useful now, but very, very cool, and who knows, if we have to fight giant cockroaches and stuff in the days to come.