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Our sizes differ from US standards. Use our free, eco-friendly sizing kit to find your fit—yours to keep, no return required.
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Heart rate monitoring 
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Skin temperature measurement 
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Heart rate variability (HRV) tracking 
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Blood oxygen (SpO₂) monitoring 
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Sleep tracking with insights 
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Daily activity and step counting 
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Stress level monitoring 
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Women’s cycle tracking 
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Sport tracking for running, biking, fitness, hiking, yoga, tennis, volleyball, football, golf, stretching, surfing, pilates, fighting sports, and more 
Comes with a free app, a charging case and cable, and offers a battery life of approximately 5–7 days on a single charge.
Before shipping, you’ll receive a fit sample kit to easily find your perfect size. Once confirmed, we’ll send you your perfectly fitting product
 
 
 
 
   
  
  
 
  
  
