Three former Tesla engineers built a wearable to track strength training

Most fitness wearables are built for runners. They’ll tell you your pace, your splits, your VO₂ max but walk into the weight room and they’re essentially a heart rate monitor with a step counter. Fort is a new wearable designed specifically to fill that space.

Built by former Tesla engineers who wanted the same sensor-driven precision they used in automotive engineering applied to strength training, it automatically tracks sets, reps, rest periods, and exercise type from your wrist with no manual logging required.

Fort is a wearable designed for strength training.

What makes it different

Fort combines motion and heart rate sensors to recognize 50-plus exercises, from barbell compounds to cable accessories, and delivers a session breakdown that goes deeper than volume:

• Muscle stimulus breakdown. After each session, Fort shows whether each muscle group received maintenance, growth, or overload stimulus — so you can see if your programming is actually doing what you think it is.
• Form feedback. Range of motion and rep velocity are tracked across a session, showing how both change as you fatigue. Useful for spotting when technique starts to drift.
• Session score. A single number combining intensity, movement quality, and your personal goals to indicate whether you hit your target for the day.
• Weekly volume targets. A running view of how much meaningful training volume remains for the week, helping you balance effort across sessions.

The band weighs about 28 grams, lasts up to seven days on a charge, and covers the all-day basics: continuous heart rate zones, VO₂ max estimation, full sleep stage tracking (deep, light, REM), overnight HRV trends, recovery scoring, and real-time stress detection.

Where to buy

Fort is available for pre-order at $289 (retail $349) and ships Q3 2026. The pre-order includes the band, one year of Fort Premium analytics, beta testing access, and lifetime firmware updates. Learn more at fort.cx.