New In Box Black SMART RING Fitness Sports Tracker Workout Oxygen Sleep Size 8
NWT
$32 $65
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Brand new in box Black Smart Ring Size 8. This comes with the charging cord as well.
It’s comfortable, light but durable feeling and stylish but simple.
For tracking sensors it has:
heart rate
spo2
accelerometer
It sends this data to the free EcTri app which offers basic analysis and tracking of:
steps/activity
workout tracking
sleep
stress
heart rate
spo2
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