Serious athletes who need to log long runs, don't delay. As part of its Presidents Day sale, Amazon is offering more than 50% off the Garmin Vivoactive 3.

Currently, the Garmin Vivoactive 3 is available for $99.99. That's $150 off and the lowest price to date for Garmin's excellent smartwatch.

With its always-on display, comprehensive fitness tracking, and up to 7 days of battery life, the Garmin Vivoactive 3 aims to set itself apart from Fitbit and Apple. In our review of the Garmin Vivoactive 3, we found a very fitness-focused smartwatch, giving it 4 stars out of 5.

We tested the device on multiple three-mile runs and found that the Vivoactive 3 latched onto the GPS signal in less than a minute and accurately tracked heart rate during exercise. the Vivoactive 3 uses a heart rate sensor to measure V02 max scores and can also monitor stress levels throughout the day. It can also monitor stress levels throughout the day.

Like Fitbit and Apple, Garmin has an app store for its smartwatches. However, while Garmin's Connect IQ store claims to have over 1,600 apps, there are few big-name apps that are not fitness-related, which would be one complaint about this watch.

At its current price of $99, however, it is a great bargain that is hard to pass up.