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M4 Smart Watch Heart Rate Blood Pressure Monitor Sport
  • Friends
  • Performance Wellness

M4 Smart Watch Heart Rate Blood Pressure Monitor Sport

$7.99

4.9(168,817 reviews)

Recording heart rate is nice for knowing your health and exercise status, using reflection. Photoelectric signal detection principle records your heart rate, 24h continuous detection your heart rate.

At a glance

  • Price check$7.99 (verify at checkout)
  • Community4.9/5 · 168,817 reviews
  • InterestPerformance Wellness
  • AudienceFriends
  • RetailerEbay
Shop on Ebay eBay seller screened

Editors confirmed Ebay stock on Sep 28, 2025.

  • Verification log captured fresh imagery and specs from Ebay on Sep 28, 2025.
  • Latest price audit recorded $7.99; confirm totals at checkout.

Updated 2025-09-28