LEMFO LF38 1.6 inch IPS Screen Silicone Strap Smart Watch Supports Blood Oxygen Monitoring Color:Silver Standard Micro SD and SD

Standard Micro SD and SD Design: Suitable for all electronic devices with a Micro SD or SD slot

38 different polyphony ring tones for your choice

Read and write speed is fast

no need to install drivers

emergency charging

LEMFO LF38 1.6 inch IPS Screen Silicone Strap Smart Watch Supports Blood Oxygen Monitoring Color:Silver Standard Micro SD and SD1. Main control: 7012 F6 2. Memory: 128Mb 3. Touch screen: 1. 6 inch IPS 4. Resolution: 390x390 5. Heart rate sensor: HX3602 6. Bluetooth: BT5. 0 7. Battery capacity: 360mAh 8. Standby time: about 15 days 9. Use time: about 5 days 10. Charging method: wireless charging 11. Compatible system: support Android 5. 0 and above, iOS10. 0 and above 12. Support multiple sports modes, message push, heart rate monitoring, blood oxygen monitoring, blood oxygen