A useful tool, never essential
Before diving into details, a clarification: many athletes progress seriously in Hyrox without ever wearing a smartwatch, relying on how they feel and simple manual session tracking. The watch isn't a condition for success, but a tool that can genuinely help if used wisely.
What it genuinely brings
Heart rate
On a format that alternates running and strength stations, pace alone loses relevance as an intensity indicator — heart rate, on the other hand, stays consistent from one station to the next. Tracking this data helps objectify effort management in racing and training, particularly to avoid a too-intense start that's hard to feel in the moment.
Training load tracking
Some watches compute an estimate of accumulated training load, useful for spotting fatigue building silently before it translates into a poor performance or injury. This data remains an estimate, not an exact measure, but it offers an additional warning signal.
Recovery tracking
Heart rate variability (HRV) and recovery scores offered by some watches give an indication of the body's freshness, useful for adjusting a session's intensity day-to-day rather than blindly following a plan written in advance.
What remains a nice-to-have
Some features marketed as essential actually add little value for Hyrox prep specifically: generic fitness scores, automated training recommendations not very specific to the format, or social comparisons with other users. These features can be entertaining, but never replace a real structured program and thoughtful progress tracking.
The risk of data dependency
Conversely to a lack of attention to data, some athletes develop excessive dependency on their watch, to the point of letting the displayed number entirely dictate their actual sensations. A watch showing a slightly unusual heart rate doesn't systematically mean a problem — learning to cross-reference the data with how you actually feel remains an essential skill, one the watch alone doesn't develop.
The watch during the race itself
Some athletes choose to remove their watch or hide the screen during the race itself, preferring to focus on real sensations rather than a number that might induce artificial effort management, disconnected from the body's actual state that day. Others, conversely, appreciate real-time data as an objective reference point against the euphoria or fatigue that can distort effort perception. Both approaches are valid — what matters most is knowing which one suits you, tested beforehand rather than discovered mid-race.
Do you need a Hyrox-specific model?
No watch is currently specifically designed or certified for the Hyrox format. A standard running or multisport watch, with a reliable wrist heart rate sensor, largely covers the real needs of prep. Investing in a premium model generally doesn't offer a decisive advantage over an entry or mid-range model for this specific use.
How to integrate data into your prep
Rather than drowning in every available metric, pick 2 to 3 genuinely actionable data points (race heart rate, weekly training load, for example) and track them regularly. It's this selectivity, more than data accumulation, that turns a gadget into a real progression tool.
Complement your tracking with concrete tests
The ZONE8 Score objectifies your progress station by station, complementing what your watch can already give you.
Start FreeFAQ
Is a watch essential?
No, it remains a useful tool but not essential. Many athletes progress without one.
Heart rate or pace, which to prioritize?
Heart rate helps more to objectify effort on a format that alternates running and strength stations.
Do you need a Hyrox-specific watch?
No, a standard running or multisport watch works well.
This content is provided for informational purposes. ZONE8 does not recommend any specific brand and receives no commission on sporting goods.