Helio Smart Ring Health Tracker vs Infinity Band: which is safer?
Fitbit Infinity Band is our pick: better on PFAS and on the overall hazard picture.
Amazfit
Helio Smart Ring Health Tracker
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Titanium alloy case, polymer band
Confidence
35%
PossiblePolymer band composition and residual monomers
PossibleBacterial growth in sealed band-case junction
Our pick
Fitbit
Infinity Band
PFAS grade
Excellent 85/100
Overall grade
Excellent 81/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Elastomer/silicone band
Confidence
45%
PossibleSilicone degradation and particulate shedding
Where these two actually differ
- We flag Polymer band composition and residual monomers and Bacterial growth in sealed band-case junction on the Amazfit and not on the Fitbit.
- We flag Silicone degradation and particulate shedding on the Fitbit and not on the Amazfit.
- The Amazfit is Titanium alloy case, polymer band where the Fitbit is Elastomer/silicone band, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our 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