Table 4.
Differences between accelerometer SWA and Smartwatch, Fitbit, Smartphone (Android) and Smartphone (iOS) on measuring daily physical activities
| Variables | P-value | ||
|---|---|---|---|
| SenseWear Armband | SmartWatch | ||
| Active energy expenditure, Kcal | 1197.8± 719.0 | 2025.8±1337.7 | <0.001 |
| Steps, number/day | 9478.5±5251.1 | 14359.9± 8642.8 | 0.007 |
| Duration Physical Activity, min/day | 237± 129 | 311.7±199.3 | < 0.007 |
| SenseWear Armband | Fitbit | ||
| Active energy expenditure, Kcal | 1302.2±458.4 | 1076.6±1281.5 | 0,143 |
| Steps, number/day | 7008.7±3945.1 | 7461.1±3482.0 | 0,605 |
| Duration Physical Activity, min/day | 382 ±157 | 70.2±48.7 | <0.001 |
| SenseWear Armband | Smartphone (Android) | ||
| Active energy expenditure, Kcal | 1428.1±849.5 | 287.3±263.7 | <0.001 |
| Steps, number/day | 9941.7±7056.2 | 8083.81±7683.5 | <0.001 |
| Duration Physical Activity, min/day | 328±171 | 71.8±70.4 | <0.001 |
| SenseWear Armband | Smartphone (iOS) | ||
| Active energy expenditure, Kcal | 692.7±323.0 | 173.8±161.1 | <0.001 |
| Steps, number/day | 4512.9±3683.9 | 4937.2±4057.4 | 0.911 |
| Duration Physical Activity, min/day | 159±70 | 54.2±50.8 | <0.001 |
*P<0.05, differences between activity data reported by SenseWear Armband andSmartwatch, Fitbit, Smartphone (Android) and Smartphone (iOS)