This is what the signal bars on your smartphone REALLY mean

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Sadly, the little signal bars on your iPhone or Android smartphone aren’t always that good an indicator of whether you can use the thing. Many models don’t update the bars they show for up to 15 minutes – so if you’re holding your phone aloft like a big aerial, staring furiously at a screen with five bars, you might just be wasting your time. The number of bars on display also doesn’t mean much – handset makers decide their own standard, and they don’t match across, for instance, Samsung and Apple devices…

Written by Rob Waugh

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