With all the talk about various devices being able to track you for different purposes – the hottest privacy-related topic in town concerns Windows 10 at the moment – you'll may still be surprised to learn of one other unexpected way websites can track visitors: Smartphone battery life.
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Many smartphone users complain about their phone’s battery life, but it turns out that websites can also identify a user by looking at battery levels on a phone, The Guardian reports. That’s all perfectly legal and it’s supposed to happen in the background, without the user giving a site explicit access to the information.
