Tracking Ring vs Amazfit Helio Smart Ring Health Tracker, No Subscription, Monitors Sleep, Heart Rate & Stress, Titanium Alloy, Water-Res: which is safer?
Tracking Ring is the clear pick. Amazfit Helio Smart Ring Health Tracker, No Subscription, Monitors Sleep, Heart Rate & Stress, Titanium Alloy, Water-Res carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Amazon
Tracking Ring
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleNickel in stainless steel alloy
PossibleSkin irritation from prolonged contact
Xiaomi
Amazfit Helio Smart Ring Health Tracker, No Subscription, Monitors Sleep, Heart Rate & Stress, Titanium Alloy, Water-Res
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleWater-resistant coating chemistry (undisclosed)
PossibleCoating degradation and particulate shedding
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More water-resistant smart rings & bands: see the full ranking