Stryd is designed to be accurate out of the box without calibration for most runners. It is very likely that if you have experienced distance and pace inaccuracy, then a configuration issue exists in the system of your training devices you use on a regular basis. Configuration issues are easy to fix and provide immediate improvement in your issue. This article is for you if you have one of the following complaints:
- "My Stryd Pod suddenly changed in calibration."
- "My Stryd Pod is off on distance reporting by huge margins (more than 3%*, which equates to 150m or greater error in a 5K run)."
- "My Stryd pace is changing rapidly while I run at what I know is a constant speed."
- "I run a route all the time and Stryd is telling me a different distance than I know this neighborhood route is."
- "I ran the same route today and yesterday and got different distances."
Sound like you? Let's get it taken care of. All of the steps below are important to apply with any of the above complaints.
1) Auto-Calibration Settings (for Garmin users only)
Garmin watches that have Stryd paired as a foot pod offer an "auto-calibrate" feature which is somewhat hidden compared with other foot pod settings. In the FP-##### sensor settings of the watch, if you do not see an "Auto-calibrate" option, select the "Cal. Factor" option and you will then see Auto-calibrate as an option and should disable it. If the calibration factor changed without you manually setting it, reset the value to 100.00. If this required changing, try running for a few days and see if the consistency and/or accuracy has improved.
2) Pace and Distance Settings (for Garmin + COROS users only)
Garmin and COROS watches can use either Stryd or GPS for distance and pace reporting. If you weren't paying close attention at set up, you may not actually be getting your pace and distance data from Stryd; only power data.
- For Garmin watches, go to the FP-##### sensor pairing of the watch to Stryd. Make sure Speed and Distance both are set to "Always" in this list to use Stryd for this data instead of GPS.
- For COROS watches, go to the STRYD option in the Accessories list. Select it and find the Distance Setting option. Make sure this is set to "USE STRYD" or the watch will choose to use GPS for that data.
If your watch required this change, then go test it out for a few runs and see if the data makes more sense for those runs before changing anything else.
3) Securing Stryd onto the shoe in the correct position
It is important to make sure the Stryd pod is in the correct position and orientation for consistent and accurate out-of-box reporting. It should be centered and close to the toe of the shoe with the narrow end closest to the toe and the wide end closer to the ankle. See our video on this positioning here: Clip Stryd® Pod on the Shoe
Some shoes, such as the Nike Next %, make this difficult because of their unique construction. Here is how to address that: How do I attach my Stryd pod to the Nike Vaporfly 4% and Nike Next%?
4) Check and recheck the exact route you ran
You might be feeling very sure you ran exactly the same route today that you ran yesterday and very concerned by a notable difference in distance reporting by Stryd. We strongly urge you to check and recheck the GPS map of the two routes with meticulous comparison. While this is not sufficient for finding the source of all distance issues in these cases, it is very common for their to be subtle yet significant route differences, such as turning a block earlier one day than the other, or adding an extra loop somewhere. Don't fall victim to this:
5) Be conscious of Bluetooth limitations.
Stryd can only connect with one device by Bluetooth at a time. If you have two devices connecting to a Stryd pod at the same time, such as Apple TV for Zwift and Apple Watch (or a phone) with another fitness app, these devices both require Bluetooth and will not be able to connect properly with Stryd at the same time. You may see your Zwift avatar start and stop at random if this is happening, or at least see very sporadic changes in pace reporting. Neither Zwift nor the Apple Watch can record the full distance of your run in this scenario, so choose only one Bluetooth devices. Watches like Garmin and COROS offer another wireless connection mechanism called ANT+ that can be utilized at the same time as the Bluetooth connection, so both Zwift and the watch can record the whole run without issue.
6) Stabilizing the Stryd Pod on the shoe.
You may experience inconsistency if you haven't attached the device to the shoe in a stable manner. The device needs to be supported by a minimum of three laces, and can only benefit from more laces holding it in place as long as it is properly positioned. See Clip Stryd® Pod on the Shoe and Clip Stryd® Pod on the Shoe Using 5 Laces
These steps will resolve almost all inconsistency and calibration issues. If after these steps something still does not seem right, contact our support team for further assistance.
*If you believe your pod is experiencing a very small degree of error, meaning less than 3%, the above steps are still a relevant consideration. However, if none of the above apply or improve the issue, we suggest a more formal calibration test to rigorously test and correct for any issues.