Are you looking for a smart device to track your heart rate? This Smart Chestband may be your best choice. It can help you to record real time heart rate data, helping users to adjust the exercise intensity and maintain a good training state. With adjustable strap, it is suitable for most people. Good waterproof performance can be used on rainy days and has an anti-sweat function. A perfect gift for your lover, parents and friends, etc.
• Wearing on the chest, HR40 accurately monitors your heart rate data while doing sports
• Thanks to the ECG measurement technology, precise heart rate data will be provided by HR40
• Goodwaterproof performance makes HR40 can be used in rainy days and is sweat resistant
• Built-in CR2032 button battery. Up to 340 hours of battery life
• The HR40 supports almost all heart rate receiving devices. You can view heart rate data on compatible mobile apps, chronographs, and wristwatches by wireless transmission