Heart Rate Monitor

Hi folks. What heart rate monitor would you all recommend in this day of age. I’ve had a Polar for some years now but always found the chest strap to be cumbersome and distracting whilst training. More than once it has fallen off mid-workout. Am I right in thinking that there are consumer monitors available on the market now that don’t involve a chest strap? I had a cursory search for heart rate monitors for sale online but didn’t find anything to my liking. What is everybody else using? Has anybody any recommendations? I’m mostly running on both the treadmill and the road so it would need to be practical for that particular form of exercise. Any pointers or suggestions would be greatly appreciated.

heart rate