{"product_id":"surundo-whoop-4-0-silicone-sport-band-adjustable-waterproof","title":"surundo Whoop 4.0 Silicone Sport Band Adjustable Waterproof","description":"\u003cp\u003e\u003cstrong\u003esurundo Silicone Sport Band is a soft, adjustable replacement wristband designed to securely hold the Whoop 4.0 tracker during workouts, swims, and everyday wear.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you want a lightweight, washable strap that keeps your Whoop 4.0 comfortable and stable through sweat, showers, and long days, this surundo band fits wrists from 5.9\" to 8.26\" (150–210 mm) and offers a breathable, skin-friendly silicone build. It’s tailored for active users who need a simple, tool-free swap for their tracker without sacrificing durability or daily comfort.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this band keep the Whoop 4.0 secure during activity?\u003c\/h3\u003e\n\u003cp\u003eThe surundo band uses a snug, form-fitting channel and precision cutouts that cradle the Whoop 4.0 module while allowing one-click removal when needed. The closure stays locked during vigorous motion so the tracker won’t slip or fall off.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eForm-fitting silicone channel designed for Whoop 4.0 module stability\u003c\/li\u003e\n  \u003cli\u003eSecure clasp system that resists accidental release during exercise\u003c\/li\u003e\n  \u003cli\u003ePrecision cutouts let you access sensors without dislodging the tracker\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and comfort features does the strap offer for all-day wear?\u003c\/h3\u003e\n\u003cp\u003eThis band is crafted from soft, high-quality silicone that’s both flexible and breathable, reducing skin irritation during extended wear. The supple material is lightweight and quick-drying for post-workout comfort.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSkin-friendly silicone with a soft, smooth finish\u003c\/li\u003e\n  \u003cli\u003eLightweight and stretchable for a natural wrist feel\u003c\/li\u003e\n  \u003cli\u003eWashable and quick-dry for hygiene after sweaty sessions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the band fit my wrist and how easy is installation?\u003c\/h3\u003e\n\u003cp\u003eThe surundo strap covers a wide wrist range (150–210 mm) and uses an adjustable fit system so most men, women, and teens can find a comfortable setting. Installation and removal are tool-free, letting you swap bands in seconds.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-size-adjustable design fits wrists from 5.9\" to 8.26\"\u003c\/li\u003e\n  \u003cli\u003eQuick, tool-free installation with one-click disassembly\u003c\/li\u003e\n  \u003cli\u003eSize adjustments are simple and secure for daily wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this band suitable for sports and water activities?\u003c\/h3\u003e\n\u003cp\u003eYes—the surundo silicone strap is built for active use including running, cycling, swimming, hiking and gym workouts. Its waterproof silicone and secure fit make it a reliable companion for outdoor and aquatic activities.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWater-resistant silicone tolerates swims and showers\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists wear from frequent activity\u003c\/li\u003e\n  \u003cli\u003eDesigned to stay comfortable during endurance training and sports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The surundo Silicone Sport Band is ideal for active Whoop 4.0 users who want a durable, comfortable replacement strap that’s easy to install and maintain. It suits athletes, fitness enthusiasts, commuters, and everyday users who need a breathable, washable band that fits a broad range of wrist sizes. Note: surundo replacement bands are aftermarket accessories and are not affiliated with, endorsed by, or tested for compatibility by WHOOP.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this band fit my Whoop 4.0?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The surundo band is made to accommodate the Whoop 4.0 module and fits wrists 150–210 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I wear it while swimming?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The silicone is water-resistant and quick-dry, suitable for swimming and showers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"surundo","offers":[{"title":"Default Title","offer_id":48412975726749,"sku":"B0G4L5LDC5","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/surundo-front-packaging-whoop-4-0-band.jpg?v=1781254712","url":"https:\/\/nexoltic.com\/products\/surundo-whoop-4-0-silicone-sport-band-adjustable-waterproof","provider":"Nexoltic","version":"1.0","type":"link"}