About this item Product 1: High Accuracy: Widely recognized for its top precision by many sources, Polar H10 is the most accurate heart rate sensor in Polar’s history. Polar H10 provides top quality ECG measurement and it's the choice of many pro athletes Product 1: Connectivity: Bluetooth, ANT+ and 5 kHz provide an excellent variety of connection options (e.g. with Peloton). You can use Bluetooth and ANT+ connections simultaneously as well as two Bluetooth connections simultaneously Product 1: Polar Pro Chest Strap: With improved electrodes, an easy-to-use buckle and silicone dots, the strap is comfortable and interference-free, and stays put when you're on the move Product 1: Versatility: Wear Polar HR monitor when rowing, cycling, running, training indoors. Polar H10 is fully waterproof and it has internal memory for one training session Product 2: Charge your Polar Grit X, Vantage or the Polar Ignite fitness watch with the USB cable. Product 2: You can also use it to synchronise your training and activity data with the Polar Flow app. Product 2: Compatible products: Polar Grit X, Grit X Pro, Ignite, Ignite 2, Vantage M, Vantage M2, Vantage V, Vantage V2 › See more product details