Even R1 Smart Ring vs Smart Sensor: which is safer?

Where these two actually differ

• We flag Band material variability and Skin sensitization from sweat pooling on the Even Realities and not on the Suunto.
• We flag Coating degradation and leachates from unspecified housing materials, Electronic waste toxicity (heavy metals in solder, batteries), Skin irritation from contact allergens in unspecified materials and Volatile organic compounds (VOCs) off-gassing on the Suunto and not on the Even Realities.
• The Even Realities is titanium, stainless steel, sapphire crystal where the Suunto is Electronic sensor, materials unspecified, 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 Suunto grade, at 25% confidence against 72%, because it discloses less.