Swatch Group CEO Nick Hayek has confirmed his company is working on a better battery, one that will help smartwatches last up to half a year.

In an interview with a Swiss newspaper, Hayek divulged his company is working on a “revolutionary battery” for a new line of smartwatches due out in 2016. The watches’ biggest selling point may be a 6-month battery life.

“Whoever brings a battery for a smartwatch to the market that you don’t need to charge for six months has a competitive advantage,” Hayek said, as reported by Reuters. “We’re working intensively on this problem with our research group Belenos and battery producer Renata.”
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