49mm titanium case (largest Apple Watch)\

• Very rugged — made for hiking, diving, outdoors\
• Always-on Retina display (super bright)\
• GPS + Cellular built in (can use without phone)\
• Action button on the side for quick shortcuts\
• Siren for emergencies\
• Water resistant (good for swimming/diving)\
• Dual-frequency GPS (more accurate tracking)\
• Up to ~36 hours battery (way longer than normal Apple Watch)

Health / fitness features\

• Heart rate tracking\
• Blood oxygen sensor\
• ECG support\
• Sleep tracking\
• Workout tracking (running, hiking, diving, etc.)

Other features\

• Works with iPhone only\
• Apple Pay\
• Calls & texts from watch\
• Compass + backtrack (good for hiking)\
• Night mode (red screen for dark)

Good for\

• Outdoors / hiking\
• Long battery life\
• Big screen\
• Durable watch