Garmin now finds itself squeezed on multiple legal fronts, as Finnish wearable-tech maker Suunto has filed a lawsuit accusing Garmin of infringing five patents tied to respiratory measurement, antenna design, golf shot tracking, and watch casing—aiming for damages and potential injunctions that could bar the sale of affected Garmin models. This move comes on the heels of Strava’s lawsuit, filed earlier in the U.S. District Court in Colorado, which claims Garmin violated patents and a 2015 cooperation agreement by using features like segments, heatmaps, and popularity routing without proper licensing—and seeks to force Garmin to stop selling devices with those features. Despite the tension, data synchronization between Garmin and Strava reportedly remains unaffected for now. Legal observers note that Garmin might argue it introduced some of its contested features (like heatmaps) before Strava’s patents, and that several of Suunto’s patents are nearing expiration, raising strategic timing questions. In sum, Garmin is facing overlapping litigation from both a former partner and a direct competitor—putting pressure on its product lines and raising uncertainty for users of its watches and bike computers.
Sources: Cycling News, The Verge
Key Takeaways
– Suunto’s lawsuit targets Garmin across hardware and software domains, including respiration monitoring, antenna design, golf shot detection, and watch casing features.
– Strava’s case hinges on alleged patent violations of segments, heatmaps, and popularity routing functions—and an alleged breach of a 2015 agreement restricting Garmin’s development of parallel systems.
– The overlapping suits raise the possibility that Garmin may be forced to disable features or suspend sales of key models if courts rule in favor of plaintiffs; however, Garmin has defensible arguments regarding prior art and the age of contested patents.
In-Depth
Garmin, long a dominant name in consumer wearables—especially within cycling and multisport niches—has long enjoyed synergies with third-party platforms and niche competitors alike. But now, the company is facing intensifying legal pressure from both sides: its erstwhile partner Strava and direct competitor Suunto.
Strava’s lawsuit, filed on September 30, 2025 in Colorado, alleges that Garmin has infringed on patents covering two familiar features: segments (which enable athletes to race against past performances or others on defined route sections) and heatmaps / popularity routing (which visualize commonly used routes). In tandem, Strava claims Garmin breached a Master Cooperation Agreement from 2015, which allowed Garmin to use Strava’s Live Segments under restrictive terms. Strava alleges that Garmin violated those restrictions by developing its own “Garmin-branded” segment systems, enabling segment leaderboards and routing outside the accepted scope. Strava is seeking both monetary damages and an injunction that would forbid Garmin from selling devices embodying the contested features. Crucially, Strava has also flagged a related conflict: Garmin’s updated developer guidelines (issued July 1, 2025) requiring its logo on all activity screens shared via APIs, or else API access may be cut—something Strava contends amounts to forced advertising and degrades user experience. The lawsuit, meanwhile, says Strava first notified Garmin in June and July of these grievances with no resolution.
Soon after, Suunto jumped into the fray with its own suit—filed on September 22, 2025 in the U.S. District Court for the Eastern District of Texas. Suunto accuses Garmin of infringing five patents, spanning hardware and software domains: detection of golf swings (determining ball strikes via wrist motion and GPS), algorithms converting heart rate / HRV data into respiratory rate, antenna design particularly in metal-casing designs, and watch casing / assembly techniques. The complaint names numerous Garmin models—Fenix, Epix, Forerunner, Instinct, Venu, MARQ, and Approach among them—and seeks damages and potential injunctions against sales. That said, reports suggest Suunto may not press for immediate mass device takedowns, giving some breathing room in the marketplace.
Garmin has not publicly responded in depth to either case (beyond generic “no comment on pending litigation”). But its potential defenses are multi-layered. Garmin may argue prior art—notably that it introduced its version of heatmaps or popularity routing in 2013, predating some of Strava’s patents. This could undermine the validity of those patents or limit the scope of what Garmin is accused of infringing. In Suunto’s case, Garmin might contend that certain inventions are nearing patent expiration or that design differences place them outside the claimed patent scope. The pending nature of both suits leaves significant uncertainty for Garmin’s product roadmap and feature support.
For users and consumers, the immediate impact is minimal—Garmin and Strava data syncing remains unaffected. But if courts side with Strava or Suunto, Garmin may be forced to disable features (through software updates), pull affected models from sale, or negotiate costly licensing. Worse, overlapping rulings could complicate Garmin’s technical flexibility moving forward. In the world of wearables and fitness tech, this is more than corporate sparring; it underscores how central software / algorithm innovation has become—and how fragile the boundary between collaboration and conflict can be.