![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/2015/2/12/1423760072207/d36ab23f-9d5c-493c-91a4-c55b5b530661-1020x612.jpeg?width=620&quality=85&auto=format&fit=max&s=d94a906fdd2ed95dcf1bb90ea3a6355b)
Fitbit Charge HR review: a heart-rate tracker that's skipped a beat | Wearable technology | The Guardian
![A few quick thoughts on Fitbit's new activity trackers, GPS watch (with optical heart rate!) | DC Rainmaker A few quick thoughts on Fitbit's new activity trackers, GPS watch (with optical heart rate!) | DC Rainmaker](https://media.dcrainmaker.com/images/2014/10/Fitbit-New-Products-Image.png)
A few quick thoughts on Fitbit's new activity trackers, GPS watch (with optical heart rate!) | DC Rainmaker
![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&dpr=1&s=none)
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/W/MEDIAX_792452-T2/images/I/610d9aEVh6L._AC_UF1000,1000_QL80_.jpg)