Based on this product's specifications, here are some alternatives and similar models
Heart Rate Monitor Wahoo COROS HRM, grey
Summary description:
Wahoo COROS HRM is a chest heart rate monitor in grey designed for accurate heart rate measurement during training. It provides continuous heart rate data for use with compatible fitness apps and devices, supporting real-time monitoring, interval workouts and performance tracking. Suitable for runners, cyclists and gym training where reliable pulse data is required.