You can also use a "dumb" watch that has 10 years battery life.

1123581321 5 days ago | parent | next [-]

Or that constantly charges with a solar face or mechanical motion.

You can get a Rolex

In my case it’s just a Citizen chronograph from eBay for $100.

	▲	jaian 5 days ago \| parent [-]
		A Casio 5610 also charges with sunlight. To me it is the ultimate watch.

wslh 5 days ago | parent | prev [-]

Sure, but I was talking in the context of smart watches that have several health sensors.