S1 Entry Level GPS Bike Computer Wireless, Laminated 2.8" Screen, Ultra Thin and Lightweight Bike Speedometer, IPX7 Waterproof About this item * 【Ultra-thin 14mm Lightweight 58g】 The S1 bike speedometer is only 14mm thick and weighs 58g, thinner and lighter than more than 99% of bike computers, making it convenient to carry. Small but powerful, it is your riding helper. * 【IPX7 Waterproof & AUTO Backlight】Regardless of weather, the Navihood S1 bike computer is ready for any adventure. Its IPX7 waterproof rating ensures practicality in all weather conditions, while the laminated 2.8-inch anti-glare screen remains clear and easy to read in bright sunlight, with automatic backlight function, suitable for low-light situations. * 【5S Accurate GPS Positioning】Navihood S1 entry-level GPS bike computer provides accurate global positioning, using multiple satellite systems such as GPS and GLONASS to ensure that your riding data is always accurate. Cold start 30s quick positioning, warm start 2s quick response, let you ride worry-free. * 【APP DIY 9 pages 14 data types】 S1 bike computer uses Navihood APP to customize DIY display of 14 data types, add or delete data, move or sort pages, show or hide pages, realize 9 page switching display, and switch data conveniently during riding. * 【Bluetooth5.0】This GPS bike computer supports It effortlessly synchronizes, uploads and shares your data with applications like Strava, making your training more effective and connected.