Multifunctional smart bracelet

Multifunctional smart bracelet
Appearance size: 20*3.7MM
Product weight: 50 grams
Wristband material: TPU
Functions: Waterproof, step counting,
Heart rate monitoring, blood pressure measurement,
Smart reminder, remote self-taking photo,
Sleep monitoring, blood oxygen detection
Battery life: 15-21 days
Charging method: USB charging
Waterproof level: Life waterproof
Case material: Plastic