If you've been looking to pick up a smartwatch, but want to use it for running or keeping track of workouts and such with Google Fit, the Sony Smartwatch 3 is perhaps your best option. And right now, Amazon is offering it for just $99 on a refurbished model. That's not a bad price, considering its normal price is closer to $300. The Sony Smartwatch 3 is one of the few Android Wear smartwatches to feature GPS and WiFi. So it's able to track your run and allow you to leave your phone at home. However, one of the disadvantages of the Smartwatch 3 is the band. It's proprietary, so while you can swap it out, you do have to buy one of Sony's other bands.
Since this is a refurbished unit that Amazon is selling for $99 (which does have Amazon Prime so you'll get free two-day shipping), Amazon is also offering a 30-day return policy. So if you don't like it, or something is wrong with it, etc., you can return it and get your money back, or exchange for another one. Pretty nice of Amazon there. Amazon does say that the product has been professionally tested and is working 100%, so there shouldn't be any issues at all.