Noise Luna Smart Ring - Rose Gold

Material
-Durable titanium
-PVD Coating
-Non-allergenic, non-metallic
-seamless inner ring molding
-Water resistant up to 50m/164 ft

Weight & dimensions:
Width: 8mm
Thickness: 2.8mm
Weight: 3 to 4 grams    

Connectivity
BT Low-Energy ( BLE 5 )
Automatic firmware updates via       Luna Ring app
Compatible with iOS and Android
EMF radiation safe                  

Battery & Power
Up to 5 days of battery life*
Full charge in 90 to 120 minutes  

Sensors
Green LEDs (optical heart rate sensor)
Red LED (blood oxygen sensor)
Infrared Photoplethysmography (PPG) sensors
Skin temperature sensor
3 axis Accelerometer