We wore the Helio Ring for two weeks straight, including through a couple of hard leg days. The readiness score actually tracked how we felt. The morning after a brutal session it dropped into the 50s and told us to take it easy, and our legs agreed.

Sleep tracking is the strong part here. It caught an afternoon nap we never logged, and the deep sleep numbers matched how rested we felt. Heart rate stayed close to a chest strap during easy cardio, though it drifts once you push into sprint territory. Most rings do.

The titanium feels nicer than the price suggests. Sizing matters a lot though. Order the sizing kit first, because a loose fit throws off the sensor and you end up with gaps in your data.