Suunto Sues Garmin Over 5 Patented Watch Features

Suunto has filed a patent lawsuit against Garmin, targeting five core watch technologies including golf features, respiration tracking, and antenna design. This is a direct legal challenge from a competitor that has struggled to match Garmin's market dominance over the past decade.

The respiration monitoring patent is the one endurance athletes should pay attention to. Garmin has baked breathing rate data into training load metrics, sleep tracking, and stress scores across its entire lineup, from the Forerunner 265 to the Fenix 7. If Suunto wins on that claim, Garmin could be forced to disable or rework features that millions of athletes rely on daily.

The antenna tech dispute is less visible to users but potentially more damaging commercially. GPS accuracy and signal acquisition speed are core selling points for Garmin against Coros and Polar. Any court-ordered redesign there would be costly and slow. Coros in particular has been closing the gap on GPS precision, so any disruption to Garmin's hardware pipeline hands competitors a real opening.

The golf features are a smaller concern for the triathlon, trail, and Hyrox crowd. But they matter for Garmin's revenue mix. The Approach series and golf mode on the Fenix line serve a paying audience that Garmin does not want to touch. Suunto filing here suggests they see a clean-cut case, not just a nuisance claim.

Verdict: Watch this closely. It will not change what you strap on your wrist tomorrow, but a ruling against Garmin could slow feature development and push firmware updates in unexpected directions across the whole lineup.