Changes

I think that in most cases, at this price point you should buy the [[Garmin Vivoactive]] over the M400. The Vivoactive has far more functionality than the M400, including Connect IQ that allows for expanded functionality through downloaded apps. The Vivoactive is a vastly better activity tracker, especially when combined with a good Connect IQ watch face that gives you better feedback on how you're doing. You can even use the Vivoactive on an ultramarathon by [[Charge On The Run]], something that much harder with the M400. Both watches will support the [[Stryd]] Footpod for extremely accurate distance and pace information, but they have different trade-offs. The M400 can still record a GPS track whilst getting distance and pace from the Stryd, where the Vivoactive has to have GPS disabled. On the other hand, the Vivoactive can display the Stryd estimate of [[Running Power Meters| Running Power]] far better than the M400, and it can record this power estimate along with other metrics such as Ground Contact Time. Therefore, I'd only recommend someone buys the M 400 if they really want to record the GPS track whilst getting pace and distance from a Stryd Footpod, otherwise by the [[Garmin Vivoactive]].