Fitness Tracker - Exercise

First shot of a fitness-tracker app I'm working on. I'm trying to design an app that doesn't get in your way when working out. Here you see the exercise screen, which shows finished/unfinished sets and allows you to quickly tap on the weight in the panel below. No need to waste time in the gym by having to enter anything with your keyboard, Just flick through and tap as you go.

Real pixels and a bigger photo attached.