smartwatch Bluetooth call heart rate blood pressure outdoor 1.45 inch men's altitude

Bluetooth version: 3.0/5.2

GPS chip: Loda AG3352B

Main control chip: Ruiyu 8763EWE

Heart rate.: three thousand six hundred and five

Battery Capacity: 650mAh _ High Capacity High Voltage Battery

Memory: RAM_ 578KB+ROM_ 512Mb

Standby time: about 90 days

Battery life: about 7-10 days

Charging method: Magnetic charging

Motor: Built in vibration reminder

Waterproof grade: 1ATM

Material: Alloy+Plastic

Hand size: 56.9 * 52.8 * 14.3mm

Strap width/material: 22mm/liquid silicone strap