{"pageUrl":"https://comparethespecs.com/fitness-outdoors/fitness-trackers-gps/which-swimming-fitness-tracker-offers-the-most-accurate-heart-rate-monitoring","lastUpdated":"2026-09-03","totalProducts":4,"niche":"Which swimming fitness tracker offers the most accurate heart rate monitoring?","description":"Which swimming fitness tracker offers the most accurate heart rate monitoring?","products":[{"brand":"Polar","model":"Verity Sense","price_gbp":68.76,"origin_country":null,"specs":{"water_resistance":"50 m suitable for bathing and swimming","heart_rate_monitor":"Optical heart rate sensor with 6 LED lights","pool_length_settings":"Set default pool length in the Polar Flow app","swim_distance_tracking":"Yes, automatic pool distance tracking using detected turns"},"confidence_score":null,"sources":[{"label":"WatchesOnline","url":"https://www.watchesonline.com/polar-verity-sense-optical-heart-rate-sensor-black-m-xxl","currency":"USD","source_country":"US","price":93.0,"price_gbp":68.76,"scraped_at":"2026-09-03T11:48:41.326379"}],"summary":"The Polar Verity Sense is a lightweight optical heart rate sensor that records heart rate, distance and pace during pool swimming. Its 50 m water resistance, swimming goggle clip and arm strap suit swimmers and multisport athletes who want wrist-free training data.","ideal_for":"It suits swimmers seeking accurate heart rate monitoring because its 6-LED optical sensor can record heart rate underwater while the goggle clip keeps it securely positioned at the temple."},{"brand":"Garmin","model":"HRM 600 Heart Rate Monitor","price_gbp":118.3,"origin_country":null,"specs":{"water_resistance":"5 ATM","heart_rate_monitor":"Records and stores heart rate data while swimming","calories_burned_tracking":true},"confidence_score":null,"sources":[{"label":"Heart Rate Monitors USA","url":"https://www.heartratemonitorsusa.com/products/garmin-hrm-600","currency":"USD","source_country":"US","price":159.99,"price_gbp":118.3,"scraped_at":"2026-09-03T11:50:17.743244"},{"label":"Best Buy","url":"https://www.bestbuy.com/product/garmin-hrm-600-heart-rate-monitors-m-xl-black/JXF9YFFYR6","currency":"USD","source_country":"US","price":169.99,"price_gbp":125.69,"scraped_at":"2026-09-03T11:50:17.743244"}],"summary":"The Garmin HRM 600 is a rechargeable chest-strap heart rate monitor with real-time heart rate and HRV transmission, standalone activity recording, and a 5 ATM water rating. It suits athletes who want accurate training data across running, cycling, swimming, and other activities, including workouts where wearing a watch is impractical.","ideal_for":"It suits swimmers seeking accurate heart rate monitoring because its chest-strap sensor records and stores heart rate data underwater, then syncs it to a compatible Garmin device after the swim."},{"brand":"COROS","model":"COROS HR Monitor","price_gbp":58.41,"origin_country":null,"specs":{"water_resistance":"3 ATM","heart_rate_monitor":"Multi-channel optical sensor"},"confidence_score":null,"sources":[{"label":"REI","url":"https://www.rei.com/product/232714/coros-heart-rate-monitor","currency":"USD","source_country":"US","price":79.0,"price_gbp":58.41,"scraped_at":"2026-09-03T11:50:17.743244"},{"label":"COROS Nordic","url":"https://corosnordic.com/products/coros-heart-rate-monitor","currency":"USD","source_country":"US","price":1199.0,"price_gbp":886.55,"scraped_at":"2026-09-03T11:50:17.743244"}],"summary":"The COROS HR Monitor is an upper-arm optical heart rate sensor with a multi-channel sensor, automatic wear detection, Bluetooth connectivity, and up to 38 hours of operation. It is designed for runners, cyclists, and multisport athletes, but it is not suitable for swimming or water sports.","ideal_for":"It suits athletes seeking accurate heart rate monitoring because its multi-channel optical sensor is worn securely on the upper arm, where COROS says it can provide accuracy equivalent to a traditional chest strap."},{"brand":"Garmin","model":"Garmin Swim 2","price_gbp":184.84,"origin_country":null,"specs":{"stroke_count":"Yes","water_resistance":"1.5 metres","heart_rate_monitor":"Underwater wrist-based heart rate monitor","pool_length_settings":"User-entered pool length","swim_distance_tracking":true,"calories_burned_tracking":true},"confidence_score":null,"sources":[{"label":"Best Buy","url":"https://www.bestbuy.com/product/garmin-swim-2-smartwatch-42mm-fiber-reinforced-polymer-slate-2019/JXF9YFQH4L/","currency":"USD","source_country":"US","price":249.99,"price_gbp":184.84,"scraped_at":"2026-09-03T11:50:17.743244"}],"summary":"The Garmin Swim 2 is a GPS swimming smartwatch that tracks pool and open-water workouts, including distance, pace, stroke count, stroke type, calories, and SWOLF. It suits fitness swimmers, competitive swimmers, and open-water swimmers who want dedicated swim metrics with underwater heart-rate monitoring.","ideal_for":"It suits swimmers seeking accurate heart-rate monitoring because it includes an underwater wrist-based heart-rate monitor that records heart rate during swim activities, alongside detailed stroke and distance metrics."}]}