GoPro videos can now show native speed and motion data

You can add widgets on top of your action videos that show how fast you're going, your GPS path, current height/elevation and G-Force. And while the feature is available starting today (you'll need to download the latest version of GoPro's Quik for desktop), videos you already shot with GPS activated can also make use of the gauges. https://www.engadget.com/2016/11/17/gopro-video-gps-data-overlays/