APPLE (Original) iWATCH S8 45MM

SPECIFICATION

• L1 GPS, GLONASS, Galileo, QZSS, and BeiDou.
• Compass.
• Always-on altimeter.
• Water resistant. 50 meters3
• Certified IP6X dust resistant2
• Blood oxygen sensor. (Blood Oxygen app)4
• Electrical heart sensor. (ECG app)5
• Third-generation optical heart sensor.