Yes, you can connect the Heart Rate Monitor to your Coros watch and the Garmin Edge 1050 at the same time. The device can be paired with up to three Bluetooth-compatible devices at the same time.

Important to note: Only one accessory of each type can be active during a training session. This means that if you are training with your Coros watch, the heart rate monitor will send data to it. If you then train with the bike computer, it will automatically connect to it. The heart rate monitor automatically recognises when it is being worn and connects to the device on which you are currently starting a training session.