Key Features
GPS model lets you answer calls and reply to text messages from your wrist
Large Retina OLED display
The processor is up to twice as fast as Series 3
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
Swim-proof design1
High- and low-heart-rate notifications
Sync your favourite music, podcasts and audiobooks
Pay instantly and securely from your wrist with Apple Pay
Built-in compass and real-time elevation readings
Can detect if you’ve taken a hard fall, then automatically call emergency services for you
Emergency SOS lets you get help from your wrist2
WatchOS 7 with sleep tracking, cycling directions, updates to Siri and new customisable watch faces
100 per cent recycled aluminium cases are available in three finishes
This is the first Gen SE, if i have understood correctly.