A customer shows the new products of Apple, iPhone 6 and iPhone 6 Plus, at an Apple Store in Madrid, Spain, on September 26, 2014.
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September 26, 2014 12:13 PM EDT

Purchasing an iPhone 6 will set you back anywhere from $200 to $650, depending on which model you buy and whether you’re due for an upgrade. But after you’ve settled that bill, you will only pay $0.47 a year to charge it, according to a new study from Outlier.

The study measured how much energy it takes to charge the Apple device, about 10.5 watt hours of electricity, and estimated that the average phone-owner would charge up once each day. While the Plus takes more energy to charge, it has a longer battery life and needs to be charged less frequently.

A laptop requires about 14 times the electricity used by and iPhone 6, according to the study.

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Write to Justin Worland at justin.worland@time.com.

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