F
40/100 puntaje de seguridad
GeneralF
Fitbit · Waterproof Smart Rings & Bands
Oura Smart Ring 4
Preocupacion muy alta de PFAS
Veredicto: EvitarWaterproof smart ring; PFAS risk unclear without material disclosure.
Oura Ring 4 uses titanium and stainless steel core with silicone band and waterproof coating. Brand does not disclose PFAS status of water-resistant treatment, raising moderate concern.
Material: Titanium, stainless steel, sapphire crystal, silicone band with waterproof treatment
La alternativa segura
B
Fitbit
Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 11 - Silver - (2026)
Estimacion basada en modelos a partir de materiales e informacion publica, no una prueba de laboratorio.