Haylou RS5 Smartwatch - Testing Heart Rate Monitor and Compared it with Fingertip Pulse Oximeter

Haylou RS5 Smartwatch - Testing the Heart Rate Monitor and Compared it with Fingertip pulse oximeter... See the Results
Product links:
Shopee Haylou Shop: s.zbanx.com/r/...
Lazada Haylou：s.zbanx.com/r/...
Coupon code:
Shopee Haylou (Final price: 2,099)
code(₱100 OFF): HAYLRSZ2
Lazada Haylou (Final price: 2,099)
code(₱100 OFF): bit.ly/lzd-hay...