If you have an Apple Watch, please follow these steps: https://cardiogram.com/knowledge-base/why-cant-i-see-my-apple-watch-data-in-cardiogram/

If you have a Fitbit device, please follow these steps: https://cardiogram.com/knowledge-base/why-cant-i-see-my-fitbit-data/

If you have a Garmin device, please follow these steps: https://cardiogram.com/knowledge-base/what-do-i-do-if-my-garmin-data-is-not-appearing-in-cardiogram-or-it-has-not-been-updated/

If you have a WearOS device, please follow these steps: https://cardiogram.com/knowledge-base/why-cant-i-see-my-wearos-data/