Sense Advanced Health Smartwatch vs Classic Plus Stainless Steel Magnetic Closure WatchBand for Apple Watch: which is safer?
Fitbit Sense Advanced Health Smartwatch is our pick, better on PFAS and on the overall hazard picture.
Our pick
Fitbit
Sense Advanced Health Smartwatch
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Stainless steel case, glass screen, elastomer/silicone band
Confidence
42%
PossibleNickel in stainless steel (skin contact allergen)
PossibleSkin irritation from moisture and bacteria trapping
X-Doria
Classic Plus Stainless Steel Magnetic Closure WatchBand for Apple Watch
PFAS grade
Excellent 85/100
Overall grade
Good 59/100
Verdict
Skip
Hazard flags
⚑ 1
Material
Stainless steel, magnetic closure
Confidence
82%
PossibleNickel leaching from stainless steel
Where these two actually differ
- We flag Nickel in stainless steel (skin contact allergen) and Skin irritation from moisture and bacteria trapping on the Fitbit and not on the X-Doria.
- We flag Nickel leaching from stainless steel on the X-Doria and not on the Fitbit.
- The Fitbit is Stainless steel case, glass screen, elastomer/silicone band where the X-Doria is Stainless steel, magnetic closure, 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.
- We are less certain about the Fitbit grade, at 42% confidence against 82%, because it discloses less.
Both products run through the same public rubric, which covers 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 waterproof fitness trackers & cases, see the full ranking