Introduction

Image of Professor Colin Espie
by Professor Colin Espie

In the last few years, there has been an explosion in the number of sleep and fitness trackers available. You can now track the number of steps you take, calories you burn, your continuous heart rate and, what we’re particularly interested in, your sleep.

There are trackers that you wear on your wrist, hang around your neck, clip to your clothes or place under your pillow…but which one is the best for you? Let’s find out.

Next: A beginner’s guide to trackers

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