{"product_id":"magene-h803-heart-rate-armband","title":"Magene H803 Heart Rate Armband","description":"\u003ch2\u003eMagene H803 Heart Rate Armband – Accurate, Comfortable \u0026amp; ANT+\/Bluetooth Ready\u003c\/h2\u003e\n\u003cp\u003eThe Magene H803 is an optical heart rate armband built for cyclists, runners, and endurance athletes who demand real-time accuracy without the discomfort of a chest strap. At SGD 55, it delivers professional-grade heart rate monitoring — dual ANT+\/Bluetooth connectivity, ±1 BPM accuracy, and 45-hour battery life — making it one of the best-value optical HRMs available today.\u003c\/p\u003e\n\u003cp\u003eMagene is a leading cycling sensor manufacturer trusted by competitive cyclists and endurance athletes worldwide, known for delivering professional-grade accuracy at accessible price points.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003ch4\u003eAccurate Real-Time Heart Rate Monitoring\u003c\/h4\u003e\n\u003cp\u003eThe H803 uses a dual-beam photodiode array to capture heart rate variation data with ±1 BPM accuracy across a 40–220 BPM range. Real-time data is transmitted continuously so your bike computer, smartwatch, or training app always has a clean signal.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM_2.png?v=1781073719\" alt=\"Cyclist wearing Magene H803 Arm Band Heart Rate Monitor on his left arm\"\u003e\u003c\/p\u003e\n\n\u003ch4\u003eHigh Heart Rate Warning – Exercise Safely\u003c\/h4\u003e\n\u003cp\u003eSet a heart rate ceiling and the H803 will vibrate to alert you the moment you exceed it — a more immediate warning than LED indicators. Stay in your target training zone and reduce the risk of overexertion, whether you're on a long climb or pushing through a tempo run.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM_3.png?v=1781073696\" alt=\"Magene H803 Arm Band Heart Rate Monitor Data in Mobile App\"\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAdjustable Armband – Fits Arm Circumferences 19–31 cm\u003c\/h4\u003e\n\u003cp\u003eThe Lycra elastic webbing and Velcro buckle strap make the H803 quick to put on and comfortable to wear for hours. The adjustable range of 190–310 mm accommodates arm sizes across a 40–120 kg body weight range, making it suitable for a wide range of athletes. Skin-friendly, lightweight, and washable by gentle hand wash.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM.png?v=1781073745\" alt=\"Magene H803 Arm Band HRM Product Image Side view\"\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDurable IML Case – Wear-Resistant \u0026amp; Scratch-Resistant\u003c\/h4\u003e\n\u003cp\u003eThe monitor housing uses IML (In-Mould Labelling) construction — wear-resistant, scratch-resistant, and fade-proof. A single side button powers the device on and off with a 2-second press, keeping the interface clean and simple.\u003c\/p\u003e\n\n\u003ch4\u003e45-Hour Battery Life with Magnetic Charging\u003c\/h4\u003e\n\u003cp\u003eA single charge delivers 45 hours of continuous heart rate transmission — enough for multi-day tours, ultra-endurance events, or weeks of daily training without anxiety. The magnetic charging cable snaps into place on contact for hassle-free top-ups.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM_6.png?v=1781073665\" alt=\"Magene H803 Arm Band Heart Rate Monitor Battery Capacity\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM_5.png?v=1781073651\" alt=\"Magene H803 Arm Band Heart Rate Monitor 45h battery life rechargeable with magnetic charger\"\u003e\u003c\/p\u003e\n\n\u003ch4\u003eANT+ \u0026amp; Bluetooth Dual Protocol\u003c\/h4\u003e\n\u003cp\u003eThe H803 simultaneously broadcasts over both ANT+™ and Bluetooth, making it compatible with virtually every bike computer (Garmin, Wahoo, Magene), smartwatch, and training app (Zwift, Strava, TrainingPeaks, Garmin Connect). One device, every platform.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM_4.png?v=1781073679\" alt=\"Magene H803 Arm Band Heart Rate Monitor Data in Mobile App and Integration with watch and bike Computer\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhich Optical Heart Rate Armband Is Right for You?\u003c\/h3\u003e\n\u003cp\u003eIf you're looking for a reliable, no-fuss optical HRM that covers all the essentials — accurate real-time heart rate, long battery life, and universal device compatibility — the H803 at SGD 55 is an excellent choice. It's ideal for recreational cyclists, fitness enthusiasts, and budget-conscious athletes who want quality data without overspending.\u003c\/p\u003e\n\u003cp\u003eIf you train at a higher intensity, rely on heart rate data for structured training plans, or simply want the most accurate optical armband available, the \u003cstrong\u003ePolar Verity Sense\u003c\/strong\u003e is worth the step up. As Polar's flagship optical HRM, it offers enhanced sensor performance and broader multi-sport recording capabilities for athletes who demand the best.\u003c\/p\u003e\n\u003cp\u003eBoth are available at Bikers.SG — choose the one that fits your training level and budget.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDetectable HR Range\u003c\/th\u003e\n\u003ctd\u003e40–220 BPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHR Accuracy\u003c\/th\u003e\n\u003ctd\u003e±1 BPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless Protocol\u003c\/th\u003e\n\u003ctd\u003eANT+™ \u0026amp; Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Life\u003c\/th\u003e\n\u003ctd\u003e45 hours continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCharging Method\u003c\/th\u003e\n\u003ctd\u003eMagnetic charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMonitor Dimensions\u003c\/th\u003e\n\u003ctd\u003e44 × 31.6 × 11.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMonitor Weight\u003c\/th\u003e\n\u003ctd\u003e12 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArmband Dimensions\u003c\/th\u003e\n\u003ctd\u003e370 × 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArmband Weight\u003c\/th\u003e\n\u003ctd\u003e9 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAdjustable Range\u003c\/th\u003e\n\u003ctd\u003e190–310 mm (fits 19–31 cm arm circumference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArmband Material\u003c\/th\u003e\n\u003ctd\u003eLycra elastic webbing with Velcro buckle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArmband Care\u003c\/th\u003e\n\u003ctd\u003eGentle hand wash\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMagene H803 Monitor × 1\u003c\/li\u003e\n\u003cli\u003eLycra Elastic Armband × 1\u003c\/li\u003e\n\u003cli\u003eMagnetic Charging Cable × 1\u003c\/li\u003e\n\u003cli\u003eUser Manual × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eHow do I charge the H803?\u003c\/h4\u003e\n\u003cp\u003eConnect the included USB magnetic charging cable to the H803. If charging fails, clean the charging pad on the back of the monitor and the pins on the charger with rubbing alcohol.\u003c\/p\u003e\n\n\u003ch4\u003eHow long does the battery last?\u003c\/h4\u003e\n\u003cp\u003eThe H803 delivers 45 hours or more of continuous heart rate transmission on a full charge.\u003c\/p\u003e\n\n\u003ch4\u003eWhich bike computers, smartwatches, and apps are compatible?\u003c\/h4\u003e\n\u003cp\u003eThe H803 is compatible with any device or app that supports standard Bluetooth or ANT+ peripheral protocols — including Garmin, Wahoo, Magene bike computers, and apps like Zwift, Strava, and TrainingPeaks.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the H803 work with Zwift?\u003c\/h4\u003e\n\u003cp\u003eYes. The H803 connects to Zwift via Bluetooth as a standard heart rate peripheral. Simply open Zwift, go to the device pairing screen, and select the H803 from the heart rate sensor list.\u003c\/p\u003e\n\n\u003ch4\u003eIs the H803 sweat-proof and water-resistant?\u003c\/h4\u003e\n\u003cp\u003eThe H803 is designed for active use and handles sweat and light moisture during exercise. The armband is washable by gentle hand wash. It is not rated for swimming or full submersion.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use the H803 for running as well as cycling?\u003c\/h4\u003e\n\u003cp\u003eYes. The adjustable armband and lightweight design (21 g total) make it equally suited for running, gym training, and other endurance sports — not just cycling.\u003c\/p\u003e\n\n\u003ch4\u003eHow does the H803 compare to the Polar Verity Sense?\u003c\/h4\u003e\n\u003cp\u003eBoth are optical arm-based HRMs with ANT+\/Bluetooth connectivity — and both are available at Bikers.SG. The H803 at SGD 55 is the smart choice for athletes who want accurate, dependable heart rate data at great value. The Polar Verity Sense is Polar's premium optical HRM, designed for athletes who prioritise maximum sensor accuracy and advanced multi-sport features. If budget is a key consideration, the H803 delivers excellent performance. If you train seriously and want the best optical armband available, the Verity Sense is worth the investment.\u003c\/p\u003e","brand":"Magene","offers":[{"title":"Default Title","offer_id":46095829958829,"sku":"MH803","price":55.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/7157\/0861\/files\/MageneH803ArmBandHRM.png?v=1781073745","url":"https:\/\/bikers.sg\/products\/magene-h803-heart-rate-armband","provider":"Bikers.SG","version":"1.0","type":"link"}