Tracking Ring vs OPOVE O Ring 24/7 Health Tracking with HRV Stress: which is safer?

Tracking Ring is the clear pick. OPOVE O Ring 24/7 Health Tracking with HRV Stress carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

Amazon

Tracking Ring

PFAS grade

A 100/100

Overall grade

A 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Stainless steel, titanium alloy, sapphire glass

Confidence

72%

PossibleNickel in stainless steel alloy

PossibleSkin irritation from prolonged contact

Why this gradeBuy

Apple

OPOVE O Ring 24/7 Health Tracking with HRV Stress

PFAS grade

F 40/100

Overall grade

F 6/100

Verdict

Skip

Hazard flags

⚑ 5

Material

Aluminum alloy case, fluoroelastomer band, sapphire crystal

Confidence

35%

PossibleFluoroelastomer band skin irritation and sensitization

PossibleSweat and topical product chemical interactions with band

PossibleAluminum alloy case corrosion or degradation from sweat salts

Why this grade

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