Garmin’s (GRMN) New Autopilot Signals Where Growth Is Headed

On September 1, Garmin (NYSE: GRMN ) unveiled SmartDrive, the first sailboat autopilot built around a brushless linear actuator with a built-in ECU. It sounds like a small piece of hardware, but it sits inside a much bigger story. Garmin's marine business has quietly become one of its fastest-growing units, and this launch shows the company is still chasing niche corners of the water that most rivals ignore. The real question is whether that kind of steady, engineering-first expansion is enough to keep the stock's momentum going.

Marine Keeps Overperforming Expectations

SmartDrive is designed for sailboats and catamarans up to 45 feet and a maximum displacement of 33,000 pounds, and it pairs with the Reactor 40 Corepack to deliver up to 1,050 pounds of maximum thrust. Garmin built it with fewer cables and external parts than older linear actuators, which means it can drop into an existing boat as a direct replacement rather than requiring a full rewiring job. It also talks to compatible Garmin multifunction displays over the NMEA 2000 network, and owners can run it from a Reactor 40 wireless remote, an APK 10 keypad, or select Quatix marine smartwatches. That kind of ecosystem lock-in is exactly what has fueled Marine's recent run.

In the second quarter of 2026, marine revenue grew 14% year over year to $341.4 million, and for the first half of the year it was up 13% to $696.4 million. The segment posted a 61% gross margin and a 29% operating margin, good for $100 million in quarterly operating income. That growth came alongside launches of the Garmin Signal VHF marine radios and the next-generation LiveScope 2 sonar, so SmartDrive extends a pattern rather than starting one. And it isn't happening in isolation. Garmin's overall second-quarter revenue hit a record $2.02 billion, up 11% year over year, while operating income jumped 30% to $616 million as gross margin expanded to 62.4%.

SmartDrive is priced at $3,499.99 on its own, or from $4,499.99 as part of a Reactor 40 Sail Corepack bundle, and it's built for boats up to 45 feet. That's a real ceiling on how much of the sailing market it can reach, since it isn't aimed at larger yachts or the broader powerboat fleet. Marine spending is also discretionary in a way that fitness wearables aren't, so a boat owner can put off a $4,500 autopilot upgrade far more easily than a health tracker purchase. Not every part of Garmin's business is rowing in the same direction, either. The outdoor segment's revenue fell 2% in the second quarter, and auto OEM operating income came in at just $3 million, an improvement from a prior-year loss but still a thin result next to marine's $100 million.