AR Holographic Waveguide Display System: Powered by holographic resin waveguide technology with a 25° field of view and 128×64px HD AR display, key metrics are projected directly into your line of sight in real time—including pace, swim time, distance, laps, and goal tracking—delivering a fully immersive “see-as-you-swimâ€?training experience. Professional Anti-Fog & Optical Protection System: Features an ultra-hydrophilic nano anti-fog coating, TÜV Rheinland certified, maintaining long-lasting clarity even after 1,000+ wipes. Integrated anti-glare lens technology ensures stable visibility in high-intensity training environments. Ergonomic Adjustable Fit System: Designed with 9 interchangeable nose bridges, 3D silicone cushioning, and a non-slip strap system to accommodate different face shapes and interpupillary distances—ensuring a secure, comfortable fit even during extended training sessions. Sport-Grade Hardware & Endurance System: Built for elite training conditions with IPX8 waterproof rating, 4-hour battery life, magnetic charging, and tactile button controls. AI Swim Tracking + Connected App Ecosystem: Equipped with an integrated IMU sensor and proprietary head-motion algorithm, accurately detects stroke type, duration, pace, distance, laps, and 12 key swim metrics with less than 1% error rate. Data syncs in real time with the Holosport App, enabling weekly/monthly/yearly performance analytics, one-tap training plan delivery (race, fat burn, rehab), and a social community for sharing workouts and progress. Dual Ecosystem Sync â€?Garmin & Apple Watch Compatible: Designed for advanced swimmers and triathletes, 2PRO seamlessly syncs with Garmin and Apple Watch.