Table 1. Validity measures from participants (N = 21) who wore a concurrent criterion device during a 2-mile trail run.
| Garmin Fenix 5 | Jabra Elite Sport | Motiv Ring | Scosche Rhythm+ | Suunto Spartan Sport | |
|---|---|---|---|---|---|
| Heart rate (bpm) | 143 (24) | 126 (58) | 137 (27) | 149 (29) | 157 (24) |
| MAPE (%) | 13.5 | 21.3 | 15.9 | 5.6 | 1.9 |
| MAE (bpm) | 20.8 | 30.0 | 25.1 | 7.3 | 2.9 |
| Bias (SD) | 15.9 (473.8) | 19.2 (1119.6) | 21.7 (488.8) | 2.9 (74.1) | -0.3 (9.3) |
| Limits of Agreement (95% CI) | -32.1 (-140.8 to -123.5) to 162.1 (153.4 to 170.7) | -464.1 (-475.8 to -452.4) to 502.6 (490.9 to 514.2) | -52.0 (-62.3 to -41.8) to 95.5 (85.2 to 105.7) | -113.9 (-117.4 to -110.5) to 119.6 (116.2 to 123.1) | -62.1 (-63.5 to -60.7) to 61.4 (60.1 to 62.8) |
| rC (95% CI) | 0.316 (0.305 to (0.326) | 0.384 (0.377 to 0.390) | 0.293 (0.225 to 0.358) | 0.780 (0.774 to 0.786) | 0.955 (0.953 to 0.956) |
| ICC (p-value) | 0.415 (<0.001) | 0.395 (<0.001) | 0.287 (<0.001) | 0.120 (<0.001) | 0.955 (<0.001) |
Data expressed as mean (SD). MAPE = Mean absolute percent error, MAE = Mean Absolute Error, rC = Lin’s Concordance Correlation Coefficient, ICC = Intraclass correlation coefficient.