wholesale smart m9 bracelet sports health waterproof blood oxygen sleep heart rate monitoring sports gift bracelet

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waterproof grade: life waterproof

brand: four generations of zhongke

battery life: less than 7 days

type of communication: bluetooth

function: photo taking, step counting, social entertainment, bluetooth calling, smart reminder

charging method: usb charging

screen type: tft screen

watchcase material: aluminum alloy

time to market: 2026

screen size: 0.96

wireless distance: 5m and below

battery capacity: 78

operation mode: touch type

wristband material: silicone

product weight: 50g

after-sales service: store three guarantees

packing list: bracelet strap manual packaging charging cable

version type: mainland china

watch strap style: classic button

compatible platform: ios

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Update time：20260716191431