I'm proud to be called "an elitist".
Are you an elitist, too? Apple Watch, well, well, well...
On a bike, yes. It simply does not work with e-bikes.
The first rule of a gravel cycling club is all participants are given a GPX route so no-one is lost on a group ride. Almost any of the group ride participants uses either a Wahoo or a Garmin, and some use a Karoo 2. I met only a single person using a GPS smartwatch on the ride but he rode a steel bike and was using platform pedals: an eccentric.
No-one I know in my gravel cycling club uses a heart rate monitor. It is because:
- Younger people are not concerned about their HR yet
- The HR monitors are the road-cycling thing, where performance really matters.
For one, I own a HR monitor but do not use it. It is because I am on blood overpressure medications that control my heart rate, and it is unlikely my HR might go over 120. As my heart cannot deliver more blood than it does, I simply vary the assistance as I ride to feel comfortable and have a little of workout.
Dynamic: If you were a roadie riding 100 mile trips, I would have understood your need for the HR monitoring. You, however, typically ride for 10 miles with assistance! And you are not old!