If you run with Suunto Spartan or Suunto 5/9, you may see power drops for just a second when you look at your data in PowerCenter. Below is an example, at 2:00 minutes power and pace are 0.
This is a problem with the watch. At that point, the Suunto watch is not saving any data into the FIT file. Here is the data from the FIT file (screenshot from Golden Cheetah):
You can see that there is no power, no speed, no altitude, no temperature or run cadence. You will not see this drop in the Suunto App as Suunto will filter out these points in their graphs whereas Stryd simply plots each point.
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