AW1354-07H AW1354-07L & AW1354-15H Bracelet de Montre 59-S53137 Noir Silicone 24 mm Eco-Drive vs Helio Smart Ring Health Tracker: which is safer?

Where these two actually differ

• We flag Silicone degradation over time, Nickel or metal alloy contact (from buckle/clasp) and Microplastic or particle shedding on the Citizen and not on the Amazfit.
• We flag Polymer band composition and residual monomers and Bacterial growth in sealed band-case junction on the Amazfit and not on the Citizen.
• The Citizen is silicone watch bracelet where the Amazfit is Titanium alloy case, polymer 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.
• We are less certain about the Amazfit grade, at 35% confidence against 72%, because it discloses less.