How to Know Your Workout Rocked — Without Your Wearable

We know it too well. That feeling you get when you forget to close the ring after a solid workout. When your tracker says you burned 290 calories so you do a couple extra push-ups to reach 300 even though your chest and shoulders are fried. When your body is screaming for a break but you told yourself you have to reach 500 calories today to go out with your friends later.