Garmin Forerunner 955 Solar £549

Garmin’s near range-topping Forerunner 955 is not so much an activity tracker as a complete wrist-based diagnostics tool. Aside from tracking your riding, running or whatever activity you wish to partake in, the GPS watch measures a staggering amount of data, via light reflection, to feed back on your recovery, health, training readiness, optimal training zones, stress levels and more. You can also add the altimeter, barometer, compass, pulse oxidation, respiration, sunrise and sunset times, music player controls, race calendar and more.

- Simon Richardson

With regards to our HR measurement the 955 proved reliable. Certainly when road riding, running, walking or motionless it seemed spot on, although the constant shaking when off-road riding appeared to disrupt the measurement.