Problem

Fort addresses a blind spot in mainstream fitness wearables: they capture steps, sleep, and heart rate but often miss the work of lifting. Its target customer is someone who trains for longevity—whether through gym sessions, strength classes, or everyday movement—but still has to manually log reps, sets, and exercises while receiving feedback that may be unhelpful or underestimate strength-related fatigue. The pain is primarily persistent time and attention friction, compounded by poor visibility into training load, progress, and recovery; the available evidence does not quantify a separate financial loss.

The killer use case is hands-free strength-session tracking. A user can wear Fort while lifting or taking a class and have the workout translated into actionable feedback without stopping to record every set. That is intended to make progressive training easier to follow, reveal whether a routine is producing results, and reduce the risk of training too hard without adequate recovery.

Product / Service

Fort combines a screen-free wrist wearable with a mobile app. Motion, heart-rate, and temperature signals are read continuously and interpreted to understand how a person moves, how much effort they apply, and how their body responds. The device is designed for workouts and all-day wear, with no notifications and a battery life of more than seven days. Its hardware can also be detached from the wristband and placed in a magnetic case on a barbell or other equipment for more traditional velocity tracking.

The software automatically recognizes roughly 50 strength exercises and is designed to track reps, velocity, range of motion, proximity to failure, muscle-volume breakdowns, time under tension, and workout intensity. It also layers in sleep, recovery, cardio, stress, and heart-rate information. Fort Foundations adds expert-led plans and class-specific insights for formats such as strength training, Pilates, and sculpt, while the commercial model is a hardware purchase paired with premium software; WIRED reported an $80 annual subscription after the included first year.

Market

Fort competes in consumer fitness and wellness technology, specifically the overlap between all-day health wearables, strength-training analytics, and velocity-based training. Whoop is the clearest named comparison: Fort is positioned as a strength-focused alternative to wearables that emphasize sleep, recovery, and general health, while Garmin and Apple represent broader adjacent wearable competitors. Fort’s differentiation is its attempt to make strength training a first-class tracked activity rather than an activity users must manually enter or infer from generic heart-rate data.

The company is early stage rather than a scaled incumbent. It was founded in 2025 by three former Tesla engineers, entered Y Combinator’s Winter 2026 batch, and is listed as an active San Francisco company with a three-person team. The Founders’ Edition has sold out, which is an early demand signal, but the available evidence does not disclose revenue, customer counts, or delivered-unit volume. As of the latest official pricing information in the research, the $309 Signature Edition was available for preorder and scheduled to ship in Q2 2027, with the company continuing to build its waitlist; this makes Fort best characterized as an early commercial, pre-scale product rather than definitively pre-revenue or already broadly deployed.