{"product_id":"haylou-rs4-plus-smart-sport-watch-bluetooth-5-1-1-78-amoled-display-spo2-heart-rate-sleep-monitor-ip68-waterproof-fitness-tracker-105-workout-modes-230mah-10-days-battery-black-champagne-silver","title":"HAYLOU RS4 Plus Smart Sport Watch Bluetooth 5.1 1.78 AMOLED Display SpO2 Heart Rate Sleep Monitor IP68 Waterproof Fitness Tracker 105 Workout Modes 230mAh 10 Days Battery Black Champagne Silver","description":"\u003ch1\u003eHAYLOU RS4 Plus Smart Sport Watch with 1.78 AMOLED Display and 105 Workout Modes\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HAYLOU RS4 Plus smart sport watch with 1.78-inch AMOLED display and black strap\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/260\/2025-10-02\/original-image\/209471e6-14d1-48d7-8bc4-e04b6859a83c.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe HAYLOU RS4 Plus combines a vibrant 1.78-inch AMOLED display with comprehensive health tracking – including heart rate, sleep, and blood oxygen monitoring – all packed into a slim, IP68-rated watch. With Bluetooth 5.1, 105 workout modes, and up to 10 days of battery life, it's a practical companion for daily fitness and health awareness. The watch is lightweight at just 57.6g and comes in Black, Champagne, or Silver.\u003c\/p\u003e\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HAYLOU RS4 Plus smart sport watch with 1.78-inch AMOLED display and black strap\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/260\/2025-10-02\/original-image\/a6830139-d6c5-4716-9c7f-04aadc4b1c59.webp\"\u003e\u003c\/div\u003e\u003cp\u003eBuilt around a high-resolution AMOLED colour display and a suite of precise sensors, the RS4 Plus is designed to provide real-time health and activity data without being bulky.\u003c\/p\u003e\u003ch3\u003eDisplay and Resolution\u003c\/h3\u003e\u003cp\u003eThe 1.78-inch AMOLED screen offers a sharp 368x448 pixel resolution, ensuring text and graphics are clear even in bright conditions. The touch-sensitive interface makes navigation smooth, while the always-on option keeps key stats visible.\u003c\/p\u003e\u003ch3\u003eHealth Sensors\u003c\/h3\u003e\u003cp\u003eEquipped with a heart rate sensor, motion sensor, and SpO2 sensor, the watch tracks your pulse, sleep stages, and blood oxygen saturation throughout the day. Continuous 24-hour heart rate monitoring gives you a reliable baseline view of your cardiovascular performance.\u003c\/p\u003e\u003ch3\u003eWaterproofing and Build\u003c\/h3\u003e\u003cp\u003eWith an IP68 water-resistance rating, you can wear the RS4 Plus while swimming or showering, and it is rated for operation between 0°C and 45°C. The 20mm strap is replaceable, and the overall weight of 57.6g makes it comfortable for all-day wear.\u003c\/p\u003e\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HAYLOU RS4 Plus smart sport watch with 1.78-inch AMOLED display and black strap\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/260\/2025-10-02\/original-image\/c0148ca3-d02b-4c27-ada3-ebfe0134dd15.webp\"\u003e\u003c\/div\u003e\u003cp\u003eWhether you're training for a marathon or simply aiming for a more active lifestyle, the RS4 Plus adapts to your routine with over 100 modes and dependable battery life.\u003c\/p\u003e\u003ch3\u003eFitness and Workout Tracking\u003c\/h3\u003e\u003cp\u003eChoose from 105 different workout modes – from running and cycling to yoga and dance – to capture accurate activity data. The watch automatically identifies motion type and syncs your stats to the Hayloo Fun app for detailed analysis.\u003c\/p\u003e\u003ch3\u003eEveryday Health Monitoring\u003c\/h3\u003e\u003cp\u003eUse the sleep monitor to understand your rest patterns, and check your SpO2 levels periodically for a fuller health picture. The 10-day battery life means you can wear it to bed without worrying about charging.\u003c\/p\u003e\u003ch3\u003eSmart Notifications and Connectivity\u003c\/h3\u003e\u003cp\u003eBluetooth 5.1 keeps your watch paired with your Android or iOS phone for call, message, and app notifications. You can also control music playback and find your phone from the watch.\u003c\/p\u003e\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HAYLOU RS4 Plus smart sport watch with 1.78-inch AMOLED display and black strap\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/260\/2025-10-02\/original-image\/c78a33de-1474-4714-b45a-e4cda78eb1c8.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe RS4 Plus delivers strong value by packing premium health sensors and a large AMOLED display into a water-resistant, long-lasting device at a competitive price point.\u003c\/p\u003e\u003ch3\u003eBattery Performance\u003c\/h3\u003e\u003cp\u003eThe 230mAh battery provides approximately 10 days of usage with 24-hour heart rate monitoring turned on. Even with heavy use, you can expect between 5 and 7 days, depending on GPS and screen-on time.\u003c\/p\u003e\u003ch3\u003eData Sync and Storage\u003c\/h3\u003e\u003cp\u003eAll your health and activity data syncs wirelessly to the Hayloo Fun app, which is available for both Android 6.0 and iOS 11.0 or later. The app provides trend charts, workout summaries, and goal-setting tools.\u003c\/p\u003e\u003ch3\u003eWhy Choose This Smartwatch\u003c\/h3\u003e\u003cp\u003eIf you want a reliable, feature-rich sports watch that covers the essentials – heart rate, SpO2, sleep, 105 workout modes, and a bright AMOLED screen – without requiring daily charging, the HAYLOU RS4 Plus is a solid, no-fuss choice.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HAYLOU RS4 Plus smart sport watch with 1.78-inch AMOLED display and black strap\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US10\/260\/2025-10-02\/original-image\/eb3d3958-1874-401d-833f-f43d6c5142a6.webp\"\u003e\u003c\/div\u003e","brand":"test8881lbos3w2ur","offers":[{"title":"Black","offer_id":55367704052051,"sku":"CJZN149680901AZ","price":109.98,"currency_code":"GBP","in_stock":true},{"title":"Champagne","offer_id":55367704084819,"sku":"CJZN149680903CX","price":109.98,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":55367704117587,"sku":"CJZN149680902BY","price":109.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1112\/5551\/9571\/files\/eb3d3958-1874-401d-833f-f43d6c5142a6.webp?v=1791977524","url":"https:\/\/elmworth.co.uk\/products\/haylou-rs4-plus-smart-sport-watch-bluetooth-5-1-1-78-amoled-display-spo2-heart-rate-sleep-monitor-ip68-waterproof-fitness-tracker-105-workout-modes-230mah-10-days-battery-black-champagne-silver","provider":"Elmworth.co.uk","version":"1.0","type":"link"}