| Smart/Speak | Tech/Speak | |
| Direct Select | Yes | Yes |
| Message Cells | 32 | 32 |
| Levels | 6 per Flash | 2,4,6,12 |
| Sequenced Messages | ||
| Scanning | ||
| Auditory Prompts | ||
| Environmental Controls | ||
| Total Recording Time | up to 32 min. | up to 28.8 min. |
| Smart Overlay System | Yes | |
| External Flash | Yes | |
| Rechargeable Battery | Yes | optional |
| Overall Size | 13.5x8x2 | 13.5x8x3 |
| Message Cell Dimensions | 1.25" | 1.25" |
| Weight | 2 lb. | 2.5 lb. |
| Price | $875 | $490 - $1,408 |