Helio Smart Ring Health Tracker vs Cover-Discount Xiaomi Smart Band 9 / 8 Nylon Stoff Band flexibel mit Klett: which is safer?

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 Xiaomi.
• We flag Antimony in polyester components and Contact dermatitis from Velcro or adhesives on the Xiaomi and not on the Amazfit.
• The Amazfit is Titanium alloy case, polymer band where the Xiaomi is Nylon fabric with hook-and-loop fastener (Velcro), 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 Amazfit grade, at 35% confidence against 72%, because it discloses less.