Refurbished - Grade A : Condition: Good. Full 12 Month Warranty.
 
GPS + Cellular model lets you call, text, and get directions without your phone (Apple Watch and iPhone service provider must be the same).
Measure your blood oxygen with an all-new sensor and app.
 
Check your heart rhythm with the ECG app.
 
The Always-On Retina display is 2.5x brighter outdoors when your wrist is down.
 
S6 SiP is up to 20% faster than Series 5.
 
Track your daily activity on Apple Watch and see your trends in the Fitness app on iPhone.
 
Measure workouts like running, walking, cycling, yoga, swimming, and dance.
 
Swimproof design.
 
Sync and stream music, podcasts, and audiobooks.
 
Apple Watch requires an iPhone 6s or later with iOS 14 or later.