Slim fitness tracker with heart rate and sleep tracking

A tracker thin enough to pass as a bracelet, with a full week of battery and the health data you actually check: heart rate, blood oxygen, sleep stages and steps. The stainless-steel mesh strap dresses up; the silicone one goes to the gym.

What's in the box

• Fitness tracker
• Strap (mesh or silicone, as selected)
• Charging cable
• Quick-start guide

Specs

• Display: 0.66-inch OLED touch screen
• Sensors: heart rate, blood oxygen, blood pressure estimate, sleep and stress monitoring
• Activity: 170+ sport modes, step and calorie tracking, phone GPS
• Connectivity: Bluetooth 5.3; Nx Wear app for iOS and Android
• Battery: about 7 days per charge
• Water resistance: IPX8
• Body: alloy case, 3.5 mm thin, about 45 g
• Certification: CE