It's been a while since we've seen a true update to Google Fit – about 6 months if you don't count a version that turned up in the final M Developer Preview. You might even say the app got a bit flabby over the summer. (Sorry.) The latest version began rolling out yesterday and it's featuring a couple of big changes for Android Wear, including a brand new watch face and a trainer mode to help you get in shape. The main app also went through a couple of changes, but they're nothing to get excited about. However, check back later for a pretty big teardown – some big things are happening.

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