There are a few good Fitbit competitors on Amazon, depending on your needs. For general fitness tracking, the Garmin Vivoactive 4 is a great option. It has a similar feature set to the Fitbit Versa 2 and is available at a similar price point. If you're looking for something more specific to running, the Garmin Forerunner 245 is a great choice. It's more expensive than the Vivoactive 4 but has a lot more features designed specifically for runners. And if you're looking for a smartwatch with more general functionality, the Apple Watch Series 5 is a great option. It's more expensive than the other two options, but it has a lot more features and is compatible with a wider range of apps.