{"title":"Heart rate monitors","description":"\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-12\" data-turn-id=\"request-WEB:ce60b260-b86f-45fd-81e6-3335062a85e5-9\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e  \u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e  \u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e  \u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e  \u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-3\" dir=\"auto\" data-message-id=\"13f1612a-fd68-469b-8b4f-00bac6db93ad\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e  \u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e  \u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e  \u003ch3 data-end=\"472\" data-start=\"432\" data-section-id=\"8kq542\"\u003eTrain by heart rate, not by guesswork.\u003c\/h3\u003e  \u003cp data-end=\"757\" data-start=\"473\"\u003eAnyone serious about improving doesn't train blindly. With a heart rate monitor, you can see exactly how intensely you are running and whether you are staying in the correct zone. This prevents you from starting too hard or consistently training too hard. The result: better progression, fewer injuries, and more progress per training session.\u003c\/p\u003e  \u003ch3 data-end=\"804\" data-start=\"759\" data-section-id=\"10llrhu\"\u003eWhen is a heart rate monitor indispensable?\u003c\/h3\u003e  \u003cp data-end=\"1078\" data-start=\"805\"\u003eUnsure if it's right for you? If you train with a specific goal in mind—think longer distances, tempo building, or recovery runs—heart rate provides immediate insight. Especially on trails, where pace is less reliable due to elevation changes, heart rate is the ultimate indicator of your effort.\u003c\/p\u003e  \u003ch3 data-end=\"1123\" data-start=\"1080\" data-section-id=\"16lhnwe\"\u003eChest strap or wrist measurement: what do you choose?\u003c\/h3\u003e  \u003cp data-end=\"1153\" data-start=\"1124\"\u003eNot every measurement is the same:\u003c\/p\u003e  \u003cul data-end=\"1434\" data-start=\"1154\"\u003e  \u003cli data-end=\"1229\" data-start=\"1154\" data-section-id=\"v99nh0\"\u003e  \u003cstrong data-end=\"1172\" data-start=\"1156\"\u003eChest straps:\u003c\/strong\u003e maximum accuracy, ideal for serious training\u003c\/li\u003e  \u003cli data-end=\"1434\" data-start=\"1230\" data-section-id=\"1yr974\"\u003e  \u003cstrong data-end=\"1259\" data-start=\"1232\"\u003ePulse measurement via watch:\u003c\/strong\u003e comfortable and practical for everyday use\u003cbr data-end=\"1310\" data-start=\"1307\"\u003eDo you want exact data for training plans? Then choose a chest strap. Do you prioritize convenience? Then wrist measurement is a great basis.\u003c\/li\u003e  \u003c\/ul\u003e  \u003ch3 data-end=\"1463\" data-start=\"1436\" data-section-id=\"bs3soa\"\u003eGet more out of your data\u003c\/h3\u003e  \u003cp data-end=\"1729\" data-start=\"1464\"\u003eCombine your heart rate monitor with a sports watch or training app and gain insight into zones, recovery, and progress. This way, you see not only how you run, but also how your body responds. That makes it easier to train smarter and make faster progress.\u003c\/p\u003e  \u003ch3 data-end=\"1762\" data-start=\"1731\" data-section-id=\"1klsdct\"\u003eFAQ – Frequently Asked Questions\u003c\/h3\u003e  \u003cp data-end=\"1914\" data-start=\"1764\"\u003e\u003cstrong data-end=\"1804\" data-start=\"1764\"\u003eHow accurate is a heart rate monitor?\u003c\/strong\u003e\u003cbr data-end=\"1807\" data-start=\"1804\"\u003eChest straps are the most accurate. Wrist measurements can vary slightly, especially during intense exercise.\u003c\/p\u003e  \u003cp data-end=\"2055\" data-start=\"1916\"\u003e\u003cstrong data-end=\"1956\" data-start=\"1916\"\u003eCan I train without a heart rate monitor?\u003c\/strong\u003e\u003cbr data-end=\"1959\" data-start=\"1956\"\u003eYes, but you are missing valuable data to optimize your training and prevent overtraining.\u003c\/p\u003e  \u003cp data-end=\"2203\" data-start=\"2057\"\u003e\u003cstrong data-end=\"2106\" data-start=\"2057\"\u003eIs a heart rate monitor suitable for beginners?\u003c\/strong\u003e\u003cbr data-end=\"2109\" data-start=\"2106\"\u003eCertainly. Beginners, in particular, benefit from insight into their exertion level and learn to pace themselves better.\u003c\/p\u003e  \u003chr data-end=\"2208\" data-start=\"2205\"\u003e  \u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"2341\" data-start=\"2210\"\u003e\u003cstrong data-end=\"2218\" data-start=\"2210\"\u003eTip:\u003c\/strong\u003e Use your heart rate monitor with a sports watch to get real-time feedback and make every workout goal-oriented.\u003c\/p\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/section\u003e","products":[{"product_id":"coros-heart-rate-monitor","title":"Coros Heart Rate Monitor","description":"\u003cp data-start=\"452\" data-end=\"666\"\u003eFeels comfortable and barely noticeable during exercise. The soft armband chafes less than a traditional chest strap and stays comfortably in place during long training sessions or intense exertion.\u003c\/p\u003e  \u003cp data-start=\"668\" data-end=\"872\"\u003eDelivers stable heart rate data during exercise. Especially during running, trail running, and indoor training, you notice that the sensor continues to measure accurately without much disturbance from arm movement or poor contact.\u003c\/p\u003e  \u003cp data-start=\"874\" data-end=\"1057\"\u003ePractical for everyday use. Automatic wear detection and simple pairing make it easy to get started quickly without the hassle of manually connecting or resetting.\u003c\/p\u003e  \u003cp data-start=\"1059\" data-end=\"1244\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eIf you are looking for more accurate heart rate measurements than a watch offers, but without a chest strap, this is a strong solution. For those who only need basic data, a watch is often sufficient.\u003c\/p\u003e","brand":"Coros","offers":[{"title":"Default Title","offer_id":42988818596028,"sku":"720224","price":89.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0504\/5174\/2908\/files\/coros-heart-rate-monitor-hartslagband-bovenarm-494745.jpg?v=1729680930"},{"product_id":"suunto-smart-heart-rate-belt-hartslagband","title":"Suunto | Smart Heart Rate Belt | Heart rate belt","description":"\u003cp data-start=\"0\" data-end=\"51\"\u003e\u003cstrong data-start=\"0\" data-end=\"49\"\u003eSuunto | Smart Heart Rate Belt | Heart rate belt\u003c\/strong\u003e\u003c\/p\u003e  \u003cp data-start=\"53\" data-end=\"104\"\u003e💓  \u003cstrong data-start=\"56\" data-end=\"102\"\u003eAccurate heart rate measurement for every sport\u003c\/strong\u003e\u003c\/p\u003e  \u003cp data-start=\"106\" data-end=\"454\"\u003eThe \u003cstrong data-start=\"109\" data-end=\"141\"\u003eSuunto Smart Heart Rate Belt\u003c\/strong\u003e delivers \u003cstrong data-start=\"149\" data-end=\"195\"\u003every accurate heart rate and HRV measurements\u003c\/strong\u003e without compromising on comfort. Ideal for sports where wrist measurement is interfered with, such as swimming, cycling, winter sports, team sports, or climbing. Thanks to the internal memory, you can also train. \u003cstrong data-start=\"394\" data-end=\"412\"\u003ewithout a watch\u003c\/strong\u003e – the data will be synchronized later.\u003c\/p\u003e  \u003cp data-start=\"456\" data-end=\"701\"\u003eImmediately \u003cstrong data-start=\"464\" data-end=\"488\"\u003elightweight design\u003c\/strong\u003e,  a comfortable fit and Bluetooth Smart compatibility, the band works perfectly with Suunto watches (m.u.v.  Suunto Run, Suunto 7 and Suunto Kailash) and the free Sports Tracker app on Android, iOS and WatchOS.\u003c\/p\u003e  \u003chr data-start=\"703\" data-end=\"706\"\u003e  \u003ch3 data-start=\"708\" data-end=\"737\"\u003e✅ Key benefits\u003c\/h3\u003e  \u003cul\u003e  \u003cli data-start=\"740\" data-end=\"805\"\u003e📊  \u003cstrong data-start=\"743\" data-end=\"782\"\u003eAccurate heart rate and HRV measurement\u003c\/strong\u003e – even without a watch\u003c\/li\u003e  \u003cli data-start=\"808\" data-end=\"864\"\u003e🏊  \u003cstrong data-start=\"811\" data-end=\"838\"\u003eWater resistant up to 30 m\u003c\/strong\u003e – suitable for swimming\u003c\/li\u003e  \u003cli data-start=\"867\" data-end=\"957\"\u003e🚴  \u003cstrong data-start=\"870\" data-end=\"898\"\u003eSuitable for multisports\u003c\/strong\u003e – including winter sports, triathlon, climbing and team sports\u003c\/li\u003e  \u003cli data-start=\"960\" data-end=\"1038\"\u003e💾  \u003cstrong data-start=\"963\" data-end=\"982\"\u003eInternal memory\u003c\/strong\u003e – records up to 3.5 hours of training data (at 120 bpm)\u003c\/li\u003e  \u003cli data-start=\"1041\" data-end=\"1102\"\u003e🔋  \u003cstrong data-start=\"1044\" data-end=\"1066\"\u003eLong battery life\u003c\/strong\u003e – up to 500 hours with CR2025 battery\u003c\/li\u003e  \u003cli data-start=\"1105\" data-end=\"1166\"\u003e🪶  \u003cstrong data-start=\"1108\" data-end=\"1138\"\u003eComfortable \u0026amp; lightweight\u003c\/strong\u003e – only 40.6 g (size M)\u003c\/li\u003e  \u003cli data-start=\"1169\" data-end=\"1235\"\u003e🔄  \u003cstrong data-start=\"1172\" data-end=\"1199\"\u003eInterchangeable chest strap\u003c\/strong\u003e – available in sizes S, M and L\u003c\/li\u003e  \u003cli data-start=\"1238\" data-end=\"1316\"\u003e📱  \u003cstrong data-start=\"1241\" data-end=\"1260\"\u003eBluetooth Smart\u003c\/strong\u003e – compatible with various sports watches and smartphones\u003c\/li\u003e  \u003c\/ul\u003e  \u003chr data-start=\"1318\" data-end=\"1321\"\u003e  \u003ch3 data-start=\"1323\" data-end=\"1343\"\u003e📋 Specifications\u003c\/h3\u003e  \u003cul\u003e  \u003cli data-start=\"1346\" data-end=\"1379\"\u003e  \u003cstrong data-start=\"1346\" data-end=\"1361\"\u003eMeasurement type\u003c\/strong\u003e:  Heartbeat \u0026amp; HRV\u003c\/li\u003e  \u003cli data-start=\"1382\" data-end=\"1436\"\u003e  \u003cstrong data-start=\"1382\" data-end=\"1401\"\u003eCompatibility\u003c\/strong\u003e:  Bluetooth Smart (BLE) devices\u003c\/li\u003e  \u003cli data-start=\"1439\" data-end=\"1491\"\u003e  \u003cstrong data-start=\"1439\" data-end=\"1451\"\u003eBattery\u003c\/strong\u003e:  CR2025 (500 hours) – to be replaced by the customer\u003c\/li\u003e  \u003cli data-start=\"1494\" data-end=\"1520\"\u003e  \u003cstrong data-start=\"1494\" data-end=\"1512\"\u003eWaterproofing\u003c\/strong\u003e:  30 m\u003c\/li\u003e  \u003cli data-start=\"1523\" data-end=\"1553\"\u003e  \u003cstrong data-start=\"1523\" data-end=\"1534\"\u003eWeight\u003c\/strong\u003e:  40.6 g (size M)\u003c\/li\u003e  \u003cli data-start=\"1556\" data-end=\"1599\"\u003e  \u003cstrong data-start=\"1556\" data-end=\"1577\"\u003eModule dimensions\u003c\/strong\u003e:  36.5 × 36.5 × 8 mm\u003c\/li\u003e  \u003cli data-start=\"1602\" data-end=\"1618\"\u003e  \u003cstrong data-start=\"1602\" data-end=\"1615\"\u003eTire sizes\u003c\/strong\u003e: \u003cul\u003e  \u003cli data-start=\"1623\" data-end=\"1636\"\u003eS: 56–82 cm\u003c\/li\u003e  \u003cli data-start=\"1641\" data-end=\"1655\"\u003eM: 70–110 cm (this is included)\u003c\/li\u003e  \u003cli data-start=\"1660\" data-end=\"1674\"\u003eL: 96–160 cm\u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/li\u003e  \u003cli data-start=\"1677\" data-end=\"1730\"\u003e  \u003cstrong data-start=\"1677\" data-end=\"1697\"\u003eMaterial module\u003c\/strong\u003e:  Glass fiber reinforced composite\u003c\/li\u003e  \u003cli data-start=\"1733\" data-end=\"1795\"\u003e  \u003cstrong data-start=\"1733\" data-end=\"1751\"\u003eMaterial strap\u003c\/strong\u003e:  Polyamide\/elastane with PU contact surfaces\u003c\/li\u003e  \u003cli data-start=\"1798\" data-end=\"1844\"\u003e  \u003cstrong data-start=\"1798\" data-end=\"1816\"\u003eInternal storage\u003c\/strong\u003e:  3.5 hours of data at 120 bpm\u003c\/li\u003e  \u003cli data-start=\"1847\" data-end=\"1886\"\u003e  \u003cstrong data-start=\"1847\" data-end=\"1868\"\u003eTemperature range\u003c\/strong\u003e:  -20 to +60 °C\u003c\/li\u003e  \u003cli data-start=\"1889\" data-end=\"1927\"\u003e  \u003cstrong data-start=\"1889\" data-end=\"1921\"\u003eMovesense apparel compatible\u003c\/strong\u003e:  Yes\u003c\/li\u003e  \u003c\/ul\u003e  \u003chr data-start=\"1929\" data-end=\"1932\"\u003e  \u003ch3 data-start=\"1934\" data-end=\"1955\"\u003e🎯 Perfect for\u003c\/h3\u003e  \u003cp data-start=\"1956\" data-end=\"2129\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eAthletes who \u003cstrong data-start=\"1969\" data-end=\"2014\"\u003eaccurate and reliable heart rate measurement\u003c\/strong\u003e want during \u003cstrong data-start=\"2030\" data-end=\"2054\"\u003emultisport training\u003c\/strong\u003e,  also in circumstances where wrist measurement is impractical or without a watch.\u003c\/p\u003e","brand":"Suunto","offers":[{"title":"Default Title","offer_id":55680164036987,"sku":"SS050579000","price":79.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0504\/5174\/2908\/files\/suunto-smart-heart-rate-belt-hartslagband-1163398.jpg?v=1755276956"},{"product_id":"suunto-chest-strap-vervangingsband-voor-heart-rate-belt","title":"Suunto | Chest Strap | Replacement strap for Heart Rate Belt","description":"\u003cp data-start=\"198\" data-end=\"423\"\u003eThe \u003cstrong data-start=\"201\" data-end=\"223\"\u003eSuunto Chest Strap\u003c\/strong\u003e is the replacement tire for you \u003cstrong data-start=\"254\" data-end=\"286\"\u003eSuunto Smart Heart Rate Belt\u003c\/strong\u003e and also compatible with the \u003cstrong data-start=\"312\" data-end=\"332\"\u003eMovesense Sensor\u003c\/strong\u003e.  Ideal when your current strap is worn out or you want an extra strap for training.\u003c\/p\u003e  \u003cp data-start=\"425\" data-end=\"563\"\u003eThe strap is fully machine washable (after removing the module) and offers a comfortable and secure fit during sports.\u003c\/p\u003e  \u003cp data-start=\"565\" data-end=\"630\"\u003e\u003cem data-start=\"565\" data-end=\"628\"\u003ePlease note: this product is supplied without a transmitter module.\u003c\/em\u003e\u003c\/p\u003e  \u003chr data-start=\"632\" data-end=\"635\"\u003e  \u003ch2 data-start=\"637\" data-end=\"667\"\u003e✨ Key benefits\u003c\/h2\u003e  \u003cp data-start=\"670\" data-end=\"758\"\u003e🔄  \u003cstrong data-start=\"673\" data-end=\"692\"\u003eReplacement tire\u003c\/strong\u003e – suitable for Suunto Smart Heart Rate Belt \u0026amp; Movesense sensor\u003c\/p\u003e  \u003cp data-start=\"761\" data-end=\"835\"\u003e👕  \u003cstrong data-start=\"764\" data-end=\"788\"\u003eComfortable fit\u003c\/strong\u003e – stays firmly in place during every workout\u003c\/p\u003e  \u003cp data-start=\"838\" data-end=\"913\"\u003e🧼  \u003cstrong data-start=\"841\" data-end=\"869\"\u003eEasy to maintain\u003c\/strong\u003e – fully machine washable (without module)\u003c\/p\u003e  \u003cp data-start=\"916\" data-end=\"971\"\u003e📏  \u003cstrong data-start=\"919\" data-end=\"946\"\u003eAvailable in 3 sizes\u003c\/strong\u003e – always the right fit\u003c\/p\u003e  \u003chr data-start=\"973\" data-end=\"976\"\u003e  \u003ch2 data-start=\"978\" data-end=\"999\"\u003e📊 Specifications\u003c\/h2\u003e  \u003cul\u003e  \u003cli data-start=\"1002\" data-end=\"1067\"\u003eCompatibility: Suunto Smart Heart Rate Belt, Movesense sensor\u003c\/li\u003e  \u003cli data-start=\"1070\" data-end=\"1084\"\u003eColor: Black\u003c\/li\u003e  \u003cli data-start=\"1087\" data-end=\"1095\"\u003eSizes: \u003cul\u003e  \u003cli data-start=\"1100\" data-end=\"1126\"\u003e  \u003cstrong data-start=\"1100\" data-end=\"1105\"\u003eS\u003c\/strong\u003e:  56–82 cm (22–32\")\u003c\/li\u003e  \u003cli data-start=\"1131\" data-end=\"1158\"\u003e  \u003cstrong data-start=\"1131\" data-end=\"1136\"\u003eM\u003c\/strong\u003e:  70–110 cm (28–43\")\u003c\/li\u003e  \u003cli data-start=\"1163\" data-end=\"1190\"\u003e  \u003cstrong data-start=\"1163\" data-end=\"1168\"\u003eL\u003c\/strong\u003e:  96–160 cm (38–63\")\u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/li\u003e  \u003cli data-start=\"1193\" data-end=\"1238\"\u003eWashable: Yes, machine washable (without module)\u003c\/li\u003e  \u003cli data-start=\"1241\" data-end=\"1271\"\u003eTransmitter: Not included\u003c\/li\u003e  \u003c\/ul\u003e  \u003chr data-start=\"1273\" data-end=\"1276\"\u003e  \u003ch2 data-start=\"1278\" data-end=\"1298\"\u003e🏃 Perfect for\u003c\/h2\u003e  \u003cp data-start=\"1299\" data-end=\"1421\"\u003eAthletes who their \u003cstrong data-start=\"1316\" data-end=\"1357\"\u003eWant to update Suunto heart rate strap\u003c\/strong\u003e or need an extra strap for training and matches.\u003c\/p\u003e","brand":"Suunto","offers":[{"title":"S","offer_id":55713863434619,"sku":"SS050580000","price":38.95,"currency_code":"EUR","in_stock":true},{"title":"M","offer_id":55713863467387,"sku":"SS050581000","price":38.95,"currency_code":"EUR","in_stock":true},{"title":"L","offer_id":55713863500155,"sku":"SS050582000","price":38.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0504\/5174\/2908\/files\/suunto-chest-strap-vervangingsband-voor-heart-rate-belt-5095203.jpg?v=1756738242"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0504\/5174\/2908\/collections\/hartslagmeters-9437086.jpg?v=1777446993","url":"https:\/\/trail.nl\/en\/collections\/hartslagmeters.oembed","provider":"Trail.nl","version":"1.0","type":"link"}