I find the tech really cool, especially it being so thin. It's also not that expensive.
Buuuut it's google so I fear this thing is a privacy nightmare.
I think the whole health/fitness tech world is a great example of what's wrong with capitalism. A lot of this stuff is genuinely really helpful and can extend lives, but you can only use it if you're willing to let them sell incredibly detailed and personal data to whoever that want.