P-ONE OLED 0.87 inch IP67 Waterproof Bluetooth 4.0 Smart Bracelet Call SMS Reminder Heart Rate Monitor Solid compact plastic and optimized

Solid compact plastic and optimized inner structure

1 x Aquarium Gravel Battery Fish Tank Vacuum Siphon Cleaner Pump

24-hour real time heart rate monitor with HR chart make your fitness conditions visual on APP

GameSir G4s adopts a 32-bit MCU chip

P-ONE OLED 0.87 inch IP67 Waterproof Bluetooth 4.0 Smart Bracelet Call SMS Reminder Heart Rate Monitor Solid compact plastic and optimizedProduct Features: Main Features: Heart Rate Monitor. 24 hours continuous all weather monitor, you can view your heart rate situation at any time Sleep Monitor. It will monitor your sleep conditions after wearing it, you can view the APP to check the details about sleep quality and time Touch Key Design. At the upper of the silver part, there is a touch key, you can touch it to switch pages, and long press to enter or quit items, open or close the