Weight
(Main Unit with Band and Sensor)
1.09 oz / 31g
Device Dimensions
1.6'' x 0.9'' x 0.5''
Ring Perimeter
2.0'' - 3.0'' / 50-76mm
Wireless
Bluetooth 4.0 BLE
Battery Life
Rechargeable lithium-polymer, 3.7 Vdc, 16 hours for typical use
Maximum Suitable Wrist Size
21 cm
Degree Of Dust & Water Resistance
IP22
Recorded Parameters
Oxygen levels, pulse rate, motion
Built-in Memory
4 records, up to 10 hours for each
Compatible Computer System
Windows 7 or later
macOS 10.15.3 or later
Works With
iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later
Android: Version 5.0 or later, with Bluetooth 4.0 BLE
Oxygen Level Range
70% - 99%
SpO2 Accuracy (Arms)
80-99%: ±2%;70-79%: ±3%
Pulse Rate Range
30 to 250 bpm
PR Accuracy
±2bpm or ±2%, whichever is greater
Sampling Interval
1 second
Display Interval In App
4 seconds
Vibration
Triggered by low oxygen level