A few of you have asked for Ground Contact Time, Vertical Oscillation and Vertical Ratio as real activity streams instead of needing to set up a Custom Stream by hand. We’re building this now — support for Garmin (watch + HRM-Pro/Tri or Running Dynamics Pod) and Coros (with a POD 2) is implemented on our end, along with Step Length and GCT Balance/%, but it hasn’t shipped yet.
Where we need your help before we release this: we don’t have a confirmed sample from every device that reports this data, and want to make sure the field names line up rather than assume it works everywhere:
- Suunto users (with a Stryd pod, or a recent Suunto with native running dynamics) — could you share a raw .fit from an activity with this data so we can check the field names line up before we release?
- Amazfit / Zepp users — same ask. We know at least one Zepp file has this data; want to confirm it’s the same field names across firmware/models before this goes out.
- Huawei users (GT Runner 2, GT 5, Watch Fit 4 and similar) — if you can get a FIT file out of the Huawei ecosystem, we’d like to take a look.
- Polar users — Polar doesn’t export FIT natively, so this only applies if you’re pairing with a Stryd pod and pulling the file from Stryd’s own app.
Separately — several of you have asked about Stryd’s own extra metrics beyond GCT/VO: Leg Spring Stiffness, Form Power, Air Power, Impact Loading Rate. These live in Stryd’s own developer fields rather than the standard FIT profile, so they need a bit more care and aren’t part of this first pass. If you run with a Stryd pod, we’d love a sample activity (ideally the raw .fit, since Custom Stream exports can lose the original field name) so we can scope that as a follow-up.
If you’re willing to share a file just reply here and we’ll follow up.
No ETA yet — depends on getting these samples in.
Thanks!
