Seems to be a good deal and the cheapest at the moment (John Lewis £49.99). I like the fact that it features heart and Oxygen sensors.
The Withings Pulse Ox has a slick and modern design and provides comprehensive fitness and body monitoring to help you improve your lifestyle.
Keep tabs on your activity
From heart rate and sleep patterns to steps taken, calories burned, elevation climbed and distance travelled, the Pulse Ox gives you a full health and fitness overview.
This innovative sports watch helps you to be more active, whether you're making regular walks to the grocery store or hiking up a challenging mountain trail.
Sync it with your smartphone or tablet to view your stats and empower yourself as you take charge of your exercise regime. It's compact enough to be slipped into a bag or pocket, and the included clip allows you to wear it for direct access while you're moving.
Sleep, heart and blood oxygen
At bedtime, put the Withings Pulse Ox in its sleep wristband and activate the sleep cycle analysis, then accurately check your sleep patterns the next day. Sleep cycles and important sleep quality indicators are shown on the in-app graph for reliably precise measurements.
You can use the Pulse Ox to check your pulse whenever you need to. Monitor heart rate before important dates, after you've been at the gym and even track your resting heart rate to gauge your fitness level. Simply press your finger to the back of the device and see your pulse displayed onscreen.