Weight

15g

Dimension

38mm×30mm×38 mm

Sleep Advance analysis

Yes (with the ViHealth App)

Recorded parameters

Oxygen Level, Pulse Rate, Motion

Vibration source

Low Oxygen Level; High/Low Pulse Rate

Data storage

Data Interval 1s/4s 4 sessions, Up to 10 hours for Each

Pulse Rate accuracy

±2 bpm or ±2%, whichever is greater

Pulse Rate range

30 to 250 bpm

SpO2 Accuracy

80-100%:±2%, 70-79%:±3%

Oxygen level range

0% to 100%

Sampling frequency

200Hz

Connection

Bluetooth 4.0 BLE

Battery life

Up to 24 hours for Typical Use

Charge time

2-3 hours

Power

3.7Vd.c., Rechargeable Lithium-Polymer

Ring size

For Finger Perimeter： Approx. 54 ~ 70mm / US Ring Size 7 ~ 13