Table 5.

Comparison of Three Types of DTs’ Capability.

Biocompatibility 22 Items	DT-HMIS Type 3	Wearable Type 2	Touch Type 1
Users-defined DT model	√
Users-defined control logic	√
Distant operation	√	√
Low cost	√		√
Customizable The DT model	√
Unrestricted light source		√	√
Contact		√	√
Non-contact	√
Extended limbs	√
Custom commands	√
Reorganized word pronunciation	√
Single finger operation	√
No need to hold by hand	√	√
Vitality assessment	√		√
Memory evaluation	√	√	√
Rehabilitation guidance	√	√	√
Age prediction	√	√	√
Training responsiveness	√	√	√
Hands will not get dirty	√
Not requiring battery power	√
No risk of electric shock	√
It won’t hurt	√