Instinct E is the supertough 45 mm smartwatch that gets up to 16 days of battery life. It includes essential features such as smart notifications and Connect IQ Store compatibility. It also features 24/7 health and wellness tracking with wrist-based heart rate, advanced sleep monitoring, Pulse Ox and more (this is not a medical device, and data presented is intended to be a close estimation of metrics tracked; Pulse Ox not available in all countries). With its high-strength case and scratch-resistant lens, the Instinct E smartwatch can take on your toughest adventures. It’s engineered to MIL-STD-810 for thermal and shock resistance and is also 10 ATM water-rated. Plus, it includes a 3-axis compass, barometric altimeter and multi-GNSS to keep you on track when you’re off the grid.