'The 401 is also compatible with Garmin heart-rate monitors and cadence sensors.'
'the 401 is compatible with Garmin heart-rate monitors and cadence sensors.'
'Garmin Forerunner 301 Water-Resistant GPS Trainer is compatible with Garmin Training Centre software.'
'This training partner continuously monitors your heart rate, speed, distance, pace and calories burned so you can train smarter, more effectively.'
'Featuring a built-in barometric altimeter for visualized information on elevation and air pressure levels, this model comprises a rugged waterproof design for reliability in all outdoor conditions.'