1. Vibration frequency: 8hz Felix rod vibrates 7.5 times per minute, 12hz Felix rod vibrates 5 times per minute.
2. Requirements for users' core physical fitness: The higher the frequency, the higher the requirements for users' core physical fitness. Therefore, the 12hz Felix stick has higher requirements for users' core physical fitness.
3. Activation effect: The higher the frequency, the more obvious the activation effect. In the primary stage, 8hz Felix rod is used, while the amplitude of strengthening specialty of 12hz Felix rod is generally 12.5hz, so the activation effect of 12hz Felix rod is more obvious.
Generally speaking, the 8hz and 12hz versions of Felix Rod have obvious differences in the above aspects, so it is very important to choose the appropriate version according to personal needs.