Garmin Acquires Muscle Oxygen Pioneer Moxy as Tech Giant Faces New Patent Lawsuit

The sports technology sector is buzzing following two significant developments involving Garmin. In a quiet transaction that caught much of the industry off guard, the wearable giant has acquired Moxy, the specialized muscle oxygen sensor company. Simultaneously, Garmin has found itself targeted in a broad new patent infringement lawsuit filed by IOENGINE, adding another legal battle to the company’s docket as it navigates ongoing disputes in the tech space.

Garmin’s Quiet Moxy Acquisition

Garmin has officially confirmed its acquisition of Moxy, a pioneering manufacturer of muscle oxygen sensors, though the tech giant has opted to keep details remarkably scarce. When asked about the buyout, a Garmin representative provided a terse official statement: "Garmin can confirm its acquisition of Moxy Monitor, but we have no further comment at this time."

This brief acknowledgment marks a distinct departure from Garmin’s standard protocol for corporate acquisitions. Typically, when Garmin absorbs a company—as it did recently with TrainingPeaks or in previous high-profile buyouts—it issues a detailed press release filled with corporate enthusiasm, executive quotes, and reassurance that the acquired staff will be integrated into the broader organization. Concurrently, the acquired company usually sends reassuring emails to its existing customer base, outlining a continuity of service.

In the case of Moxy, however, no such public fanfare has materialized. This radio silence has left industry observers speculating about Garmin’s long-term intentions for the brand, particularly given the decade-long history between the two companies.

Moxy has maintained a close relationship with the sports technology ecosystem and ANT+, the wireless protocol network originally developed by Dynastream Innovations and later acquired by Garmin. Back in January 2014, Moxy was among the early hardware developers to announce ANT+ support. Later that year, Moxy was prominently featured at the ANT+ Symposium when Garmin first introduced its Connect IQ software development platform.

Within months, Moxy launched the very first Connect IQ application for Garmin smartwatches. By 2016, the collaboration deepened further when Moxy secured official ANT+ certification for its specialized Muscle Oxygen profile, allowing the sensor data to stream directly onto Garmin watch displays without requiring a third-party Connect IQ app—a rare integration feat at the time.

Over the years, Moxy competed in the niche physiological monitoring space against rivals like BSX Athletics. When BSX eventually folded, Moxy stepped in to offer support and migration paths for displaced users. However, rather than aggressively pursuing the mass consumer market, Moxy gradually shifted its strategic focus toward academic researchers, sports scientists, and elite coaching staff. While everyday athletes could still purchase the hardware, the company operated at a relatively small production scale, prioritizing scientific precision over aggressive marketing.

Roger Schmitz, the founder and CEO of Moxy, built a reputation in the sports tech community for his scientific rigor and easygoing demeanor. Over the years, the core sensor hardware remained remarkably stable in both design and pricing, receiving incremental firmware and hardware refinements rather than sweeping consumer overhauls.

Industry analysts are now weighing the potential rationale behind Garmin’s move. One prominent theory suggests that Garmin aims to leverage its advanced manufacturing capabilities and massive supply chain to miniaturize muscle oxygen technology, potentially integrating it into smaller consumer wearables like wrist-based sports watches.

Alternatively, the acquisition may serve a defensive purpose. Competitors in the health-tracking and wearable market—such as Whoop—frequently acquire smaller firms to secure valuable intellectual property and patent portfolios. Given the litigious nature of the modern wearable tech industry, acquiring Moxy outright may represent a strategic move to preemptively block rival entities from securing the technology, thereby avoiding future legal friction.

The immediate future for existing Moxy users remains uncertain in the absence of corporate guidance from Garmin. However, because the hardware does not strictly rely on a proprietary cloud server infrastructure to function—and because users have long utilized various third-party training platforms alongside Moxy data—the core devices remain functional. Still, whether Garmin intends to maintain the product line for academic customers or integrate the underlying technology into its broader ecosystem remains to be seen.

Garmin Targeted in New Patent Infringement Lawsuit

While integrating its latest acquisition, Garmin is simultaneously managing legal challenges on the litigation front. Last Friday marked another routine day in the American tech sector for Garmin, which, like most major consumer electronics manufacturers, frequently finds itself named in patent lawsuits. While the vast majority of these cases involve non-practicing entities—commonly known as patent trolls—and are typically dismissed or settled, a new filing from IOENGINE has drawn considerable attention.

IOENGINE, a patent holding entity that has previously targeted a roster of massive corporations including PayPal, Imation, Ingenico, Roku, and Samsung, has set its sights on Garmin. The newly initiated legal action centers on a patent originally filed in 2004 that broadly covers methods for tunneling data between digital systems.

In its complaint, the plaintiff points to seemingly random examples of data synchronization within Garmin’s ecosystem, citing features like syncing Physio TrueUp performance metrics to Garmin Connect and utilizing specific device models, such as the Fenix E and the Fenix 5, as focal points of alleged infringement. The broad nature of the patent claims has drawn amusement from tech commentators, who note that the core descriptions essentially outline fundamental data transmission principles common to modern computing.

The litigation echoes IOENGINE’s past legal campaigns, most notably a nearly eight-year legal battle against PayPal that ultimately resulted in IOENGINE losing on virtually all counts before the remaining claims were dismissed. Legal experts remain puzzled as to why the plaintiff chose Garmin and Samsung as its latest targets, given Garmin’s established track record of mounting robust and aggressive defenses against patent assertions.

Garmin has increasingly utilized its legal rebuttals not only to defend its product lineup but also to publicly deter future speculative litigation. Earlier this year, Garmin made headlines with a sharp countersuit against Suunto, demonstrating a willingness to push back aggressively against intellectual property disputes. While defending against these lawsuits demands substantial investments of time and legal resources, Garmin’s aggressive posture suggests the company is committed to discouraging what it views as meritless claims.

As these legal and corporate developments unfold, Garmin continues to solidify its dominant position in the fitness technology landscape, balancing hardware acquisitions with active defense of its intellectual property.