Garmin

Gadgets

Do you really need an activity tracker?

Albert Sun The benefits - and drawbacks - of being monitored 24/7 by a raft of clever new devices.

Apps

Strava highlights dangers of 'social fitness'

David Sygall Cycling and running app Strava encourages users strive to go harder and faster, although some are doing so at the expense of safety, authorities warn.

Personal best

Unspecified

Simon Sharwood Can technology really help you get fitter?