I have the small apple watch. I love it, HR monitor is very accurate, numbers are bright and easy to read when running/spinning/etc. Watch is low profile. I didn’t like the sports band so purchased a non-apple leather band on amazon that’s much more comfortable and fits my wrist better. You can customize the display, I have mine set to show distance, speed and HR, but you can program whatever combination you prefer. I’ve had it for a couple of years now and I’m really happy with it.