I can not see major differnce in price between them
- https://www.amazon.com/Garmin-Forerunner-Smartwatch-Advanced-Dynamics/dp/B07QLVHBLF

- https://www.amazon.com/Garmin-Swimming-Smartwatch-Underwater-Distance/dp/B07XHLF7TV

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I'm not sure if these are the right ones, Also I was thinking about apple watch but I've an android device, I just need a general watch for daily life with good pool swimming features