Smart Watch F4s
সিমলেস স্মার্ট ওয়াচ F4s
Product details of smart which F4
Display:0.66 Inches
Bluetooth 4.0
Battery Capacity: 80mAh
Standby Time: 20 days
IP67 waterproof
Heart rate monitor
Smart Bracelet
Simulate blood pressure
Monitor sleep quality
Operating Temperature: 20~60℃
