If you own an Android, the Samsung Galaxy Watch 5 is an appealing compatible smartwatch to have on hand. It's currently $300, or $30 cheaper than its list price. The Galaxy Watch 5 is the improved version of the Galaxy Watch 4 and offers a bigger battery, heart rate sensors, along with other sensors. But its newest feature is the infrared-based skin temperature reading, which has become common with other wearables as a way to monitor your health.