| Property | Need Statement |
| Easy of donning the device | The wristband should be easy to wear. |
| Unobtrusiveness | Use of the wristband should not cause any obstruction for the user while performing day-day activities. |
| Soft materials | The wristband should be made of soft material. |
| Thin | The overall structure of the wristband should be thin. |
| Loose-fitting | A wristband should be loose-fitting for the user. |