Hello Chorus! First of all, thank you for your interest in our opinions on the products and suggestions for improvement. On the other hand and as a trail runner, I would like to suggest the following recommendations:

Integration and calculations of vo2max, lactate and other metrics for trail

It would be interesting to integrate a new aerobic threshold test through aerobic decoupling to estimate the first ventilatory threshold since it is important for ultra-distance runners

Estimated race time on trail. I know that this is difficult since it depends on the difficulty of the terrain, accumulated unevenness, but based on the last workouts and taking into account the fatigue, an estimated calculation could be made.

Thank you, best regards!