![Fitbit Charge HR review: a heart-rate tracker that's skipped a beat | Wearable technology | The Guardian Fitbit Charge HR review: a heart-rate tracker that's skipped a beat | Wearable technology | The Guardian](https://i.guim.co.uk/img/static/sys-images/Guardian/Pix/pictures/2015/2/12/1423760162798/560df48f-b6a3-43e6-8e34-3dd6428df0a9-1020x612.jpeg?width=445&quality=45&auto=format&fit=max&dpr=2&s=a5f8ec89a95b7fb007ed31361d768f98)
Fitbit Charge HR review: a heart-rate tracker that's skipped a beat | Wearable technology | The Guardian
![Amazon.com: Fitbit Charge HR Wireless Activity Wristband (Black, Small (5.4 - 6.2 in)) : Sports & Outdoors Amazon.com: Fitbit Charge HR Wireless Activity Wristband (Black, Small (5.4 - 6.2 in)) : Sports & Outdoors](https://m.media-amazon.com/images/S/aplus-media/vc/5003db4a-aafc-44aa-9866-648a023be211._SR285,285_.jpg)
Amazon.com: Fitbit Charge HR Wireless Activity Wristband (Black, Small (5.4 - 6.2 in)) : Sports & Outdoors
![Amazon.com: Fitbit Charge HR Wireless Activity Wristband (Black, Small (5.4 - 6.2 in)) : Sports & Outdoors Amazon.com: Fitbit Charge HR Wireless Activity Wristband (Black, Small (5.4 - 6.2 in)) : Sports & Outdoors](https://images-na.ssl-images-amazon.com/images/I/41wN7yziTQL._AC_UL600_SR600,600_.jpg)
Amazon.com: Fitbit Charge HR Wireless Activity Wristband (Black, Small (5.4 - 6.2 in)) : Sports & Outdoors
![Amazon.com: Fitbit Charge 3 Fitness Activity Tracker, Graphite/Black, One Size (S and L Bands Included) : Sports & Outdoors Amazon.com: Fitbit Charge 3 Fitness Activity Tracker, Graphite/Black, One Size (S and L Bands Included) : Sports & Outdoors](https://m.media-amazon.com/images/I/71YGrhhoqUL._AC_UL1500_.jpg)