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A comment on Google Pixel 2 and 2 XL announced. Parent comment

Re:Google Pixel 2 and 2 XL announced by criddell on Wednesday October 04, 2017 @05:05PM (#15404648)
The Quora article also mentions car audio. In a car, Bluetooth uses more power than a 3.5 mm cable plugged into an AUX port on the head unit.
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Re:Google Pixel 2 and 2 XL announced by WillPostForFood on Wednesday October 04, 2017 @05:30PM (#15404881)
Yes, it is saying the car uses more power for the bluetooth connection, than receiving the AUX in from the phone. Not that the phone uses less power.
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