| Model NO. | TK31 | 
| Material | Silicone | 
| Feature | Bluetooth, Water Resistant | 
| ECG+PPG | Yes, Support | 
| Waterproof | IP68 | 
| Blood Glucose | Yes, Support | 
| Battery Capacity | 130mAh | 
| Bluetooth | Bluetooth LE 5.0 | 
| CPU | REALTEK (Realtek)RTL8762D | 
| ECG chip | VC8808 | 
| Memory | 160KB RAM+64Mbit ROM | 
| Screen Size | 1.14 inch | 
| Charging Type | USB Charging | 
| Colors | Black, Blue, Purple | 
| Thermometer | Yes, Support | 
| Call Rejection | Yes, Support | 
| Sleep Monitoring | Yes, Support | 
| Heart Rate | Yes, Support | 
| Transport Package | Giftbox Package | 
| Specification | CE, RoHS | 
| Trademark | OEM | 
| Origin | Shenzhen, China | 
| HS Code | 85176290 | 
| Production Capacity | 2000PCS/Day | 
 
                 
                 
                     
                    