Juice Pack Case for iPhone 17 Pro Max vs Smart Band 9: which is safer?
mophie Juice Pack Case for iPhone 17 Pro Max is our pick: better on PFAS and on the overall hazard picture.
Our pick
Mophie
Juice Pack Case for iPhone 17 Pro Max
PFAS grade
Excellent 85/100
Overall grade
Excellent 81/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Plastic housing
Confidence
45%
PossibleMicroplastics from case degradation
Xiaomi
Smart Band 9
PFAS grade
Excellent 85/100
Overall grade
Good 73/100
Verdict
Buy
Hazard flags
⚑ 3
Material
Silicone band with stainless steel case
Confidence
45%
PossibleNickel leaching from stainless steel case
PossibleBacterial or fungal growth in band crevices
PossibleSkin irritation from band material or adhesives
Where these two actually differ
- We flag Microplastics from case degradation on the Mophie and not on the Xiaomi.
- We flag Nickel leaching from stainless steel case, Bacterial or fungal growth in band crevices and Skin irritation from band material or adhesives on the Xiaomi and not on the Mophie.
- The Mophie is Plastic housing where the Xiaomi is Silicone band with stainless steel case, 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 waterproof smartphone cases: see the full ranking