This functionality will be available very soon
When you do not have a power sensor but use a GPS meter and a heart rate monitor, the OTAKAM algorithms estimate the power provided from all the data of position, speed, slope, heart rate, pedalling cadence, …
The error obtained is usually very good. However, it can vary according to the type of ride (group, peloton or solo), the wind speed, the presence of any shelters (trees, buildings), or the relevance of the parameters provided by the cyclist (height, weight, etc.).
For the calculation to be possible, it is essential to use a GPS bike computer, a heart rate monitor and a cadence sensor.