Rewind Apple Fitness for clarification

In the middle of a workout, an outside noise covered up part of the instructions, so I didn't know whether to use my light dumbells, or the medium one. No way to rewind. No way to discover the missing information. The weights looked too similar for me to figure it out. I ended up abandoning the workout, too frustrated to proceed.

Is a simple 10-second rewind button too much to ask? What the heck Apple?

I was unable to tag this question correctly due to the arrangement of topics and the total absence of a search function. Search for fitness? No, you have to select a device and then discover it nested somewhere. Why does Apple hate me.