You can easily get a wristwatch-type activity tracker on Amazon.
Even if a patient tells me that they exercise as an outpatient, I have doubts about how much they actually exercise. (Not that I doubt it). Also, people ask me, "Do you want the Apple Watch, or which smartwatch do you want?" I think it depends on your purpose, and while some smartwatches are highly functional, they are expensive, so I think an activity tracker would be a good start. Among them, the Xiaomi smart watch Smart Band 7 is recommended. The charge lasts for a week, and it doesn't get in the way when you exercise. Easy one-click purchase on Amazon.
Wearable activity monitors may also be useful for cardiac rehabilitation
It has been reported that wearing a wearable activity tracker during the maintenance phase of cardiac rehabilitation increases the number of steps taken, and is expected to lead to increased motivation.1. If you enjoy it, you'll naturally continue doing it, so I recommend a wearable activity tracker. Please note that you cannot view the data without a smartphone, so if you do not have a smartphone, you will essentially be unable to use it.
Conclusion Wearable activity monitors may motivate you to exercise and increase your step count (activity level).
References
- Hannan, A.L., Harders, M.P., Hing, W. et al. Impact of wearable physical activity monitoring devices with exercise prescription or advice in the maintenance phase of cardiac rehabilitation: systematic review and meta-analysis. BMC Sports Sci Med Rehabil 11, 14 (2019). https://doi.org/10.1186/s13102-019-0126-8