Apple Watch: How long does it take to fully charge

Apple on Monday revealed a ton of details about its first-generation Watch.

People were especially eager to find out more about battery life: Apple confirmed the Watch would indeed get all-day battery life — “up to 18 hours,” it said — but nobody on stage mentioned how long it would actually take to charge this device from 0% to 80% or 100%.

On its website, Apple says the Watch will take 90 minutes to go from 0% to 80% and 2 1/2 hours to go from 0% to 100%.

This charge time was tested by Apple this month using preproduction hardware and software paired with an iPhone running preproduction software. The company says charge time “varies with environmental factors.”

But Apple does note that the larger 42mm Apple Watch “typically experiences longer battery life” than the smaller 38mm Apple Watch. There is a $50 difference between those two sizes across all Watch models.