Garmin vivoactive HR - [data field] VO2max + Chrono v1.37 (download link below in message) VO2max (Running) and Chrono in one datafield as it's useful to have 2 different pieces of data
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Garmin fēnix 6S, Ultimate Multisport GPS Watch, Smaller-Sized, Heat and Altitude Adjusted V02 Max, Pulse Ox Sensors and Training Load Focus, White: Amazon.co.uk: Electronics
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