Tracking Ring vs Oura Ring 5 Smart Ring: which is safer?

Tracking Ring is the clear pick. Oura Ring 5 Smart Ring 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

Oura Ring 5 Smart Ring

PFAS grade

F 40/100

Overall grade

F 18/100

Verdict

Skip

Hazard flags

⚑ 4

Material

Titanium, stainless steel, sapphire crystal with unspecified waterproof coating

Confidence

45%

PossibleWaterproof coating composition (PFAS or alternative)

ReportedCoating degradation and skin contact

PossibleNickel leaching from stainless steel variant

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