Size:  One-size (S/M)

mobile phone

and volume in inches

and DeerSize: 7

Sole material: EVA

L13 Bluetooth, Blood Oxygen, ECG, Smartwatch Musical Instruments Size: One-size (S/M)Screen size: 1. 3 inches Interface: USB 3. 0 Body memory: 32M + 32M Screen material: HD IPS Wearing method: wristband Operation mode: touch + button Product size: 46 * 46 * 12. 3mm Screen resolution: 240 * 240 Wristband material Strap style: sporty Color: black, black leather, black steel, silver steel, red silver, brown silver Note: It just provides relatively continuous readings and should not be treated as a replacement for an original measuring