Table 2.
Information of Google, Cortana, and Alexa statistics.
| Voice assistant | Features | Citations |
|---|---|---|
| Google assistant | Information quality - 90.3% | 14 |
| Quality - Excellent; Correctness - Excellent | 25 | |
| Time per task - 79.0 (49.0–116.0) | 13 | |
| Emotional intelligence (mean) - 3.90 | 23 | |
| Cortana | Trust - 93.8% | 14 |
| Quality - Above average; Correctness - Above average | 25 | |
| Emotional intelligence (mean) - 4.36 | 23 | |
| Alexa | Personal innovativeness - 92.6% | 14 |
| Quality - Excellent; Correctness | 25 | |
| Time per task (s) - 63.0 (41.3–106.5) | 13 | |
| Emotional intelligence (mean) - 3.77 | 23 |