Triathlon multisport watches: 7 of the best reviewed
Multisport watches: 5 key functions to look for when buying
GPS pick-up and retention is pretty good. Just make sure you’ve fully connected with the satellite or else your data won’t catch up. The optical HR system is borrowed from the more expensive Vertix and does a solid job. The pulse oximeter should come into its own at altitude, which was tricky while locked down in Bristol, but in theory this is a useful addition to monitor acclimatisation time (although it won’t match clinical-grade devices).