Battery life not addressed at unveiling.
Best competitor watches with B&W screen last 3-4 days, all other competitor color screens are lucky to get 1 day.
Sounds like being plugged in is a way of life!
http://www.theverge.com/2014/9/9/6127785/apple-watch-battery-life-mystery
And that's how the coming generations will be controlled: by limiting information.
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