Table 4. Validity of the Xiaomi Mi Band wristbands for estimating the daily physical activity recommendations (n = 62).
|
ActiGraph wGT3X-BT |
| 10,000 steps |
|
60 min of MVPA |
|
60 min of MVPA |
| Instrument |
|
%TP |
P |
k |
|
%TP |
P |
k |
|
%TP |
P |
k |
| Xiaomi Mi Band 2 |
10,000 steps |
25.8 |
0.92 |
0.79† |
60 min of brisk pace walking |
22.6 |
0.94 |
0.83† |
60 min of MVPA |
38.7 |
0.58 |
0.07 |
| Xiaomi Mi Band 3 |
25.8 |
0.95 |
0.87† |
17.7 |
0.89 |
0.69† |
53.2 |
0.56 |
0.15 |
| Xiaomi Mi Band 4 |
29.0 |
0.89 |
0.71† |
21.0 |
0.92 |
0.79† |
37.1 |
0.53 |
-0.05 |
| Xiaomi Mi Band 5 |
27.4 |
0.94 |
0.83† |
21.0 |
0.92 |
0.79† |
64.5 |
0.48 |
0.08 |
MVPA = Moderate-to-vigorous physical activity; %TP= Wearable-based percentage of total positive cases according to the recommendation; P = Proportion of agreement; k = Kappa coefficient.† p < 0.001
