Heart rate exercise step bracelet

$47.58

Model: K1
Compatible platform: iOS, ANDROID
Applicable people: business, adult, old man, fashion, public, children
Screen size: 0.66
Appearance size: 46.7mm19.7mm11.2mm
Material: PC+TPU
Battery capacity: 85mah
Interface: USB 2.0
Wireless distance: 5m-10m