Portable Devices

• Touchscreen
• Buttons on the side
• Skin temperature sensor, magnetometer, altimeter, barometer, 3-axis accelerometer, ambient light sensor, gyroscope
• Heart rate sensor

• Altitude measurement
• Calorie consumption measurement
• Sleep monitoring
• Heart rate measurement¹
• Pedometer
• Alarm clock
• Timer
• Lithium-ion battery (306 mAh)
• Fluoroelastomer strap
• Wrist circumference:
  • Small: 130 - 175 mm
  • Large: 165 - 210 mm

• Dimensions: 12,3 x 41 mm
• Weight: 31 g

Ultrahuman Ring Air Sizing Kit - this kit is to establish Ultrahuman AIR ring size.  

1) Purchase your Ultrahuman Ring Size Kit for £9.99

2) Wear your Size Kit Ring for 24 hours to know your size. 

3) Order your Ultrahuman Ring Air - Your HDEW Ultrahuman Ring Size Kit purchase of £9.99 will be rebated against your Ring Air order. (Rebate only applies if you purchase the Size Kit from HDEW and you will receive a voucher code for this).