I love my Apple watch because it does so well with tracking fitness stuff (particularly swimming) but it's a few years old now and is starting to get that laggy feeling interface that seems to be a hallmark of older Apple devices after they've gone through enough OS upgrades. I'm dreading the idea of spending a couple hundred bucks on another watch.

Are the sensors/fitness programs on Pebble on-par with apple watches?

I wonder if there's a way to migrate over my years of recorded data over.