If you're in the Apple ecosystem, there's no question an Apple Watch is the best smartwatch to pair with your iPhone. For Android users, the choice isn't so cut and dried. Your best candidates are the Galaxy Watch6 and the Pixel Watch 2, but only the latter is currently available at a record-low price from Amazon (according to price-tracking tools).
Right now, you can get the LTE Google Pixel Watch 2 for $319.99 on Amazon after an $80 discount—the best I've seen since its release in 2023.
As the name implies, the Pixel Watch 2 is the second iteration in the Pixel line of smartwatches. The major improvements over its predecessor include much longer battery life—up to 33 hours, according to PCMag's "excellent" review. Even with the always on display activated, the battery will still last a whole day.
The Pixel Watch 2 launched after Google acquired Fitbit, and the smartwatch includes fitness features like an accelerometer, GPS, a blood oxygen monitor, a heart rate monitor, a temperature sensor, a pedometer, and others. (While many Fitbit features are free, some require a subscription to Fitbit Premium, which costs $79.99/year.)
The LTE version allows you to leave your phone behind while still being able to take calls or play music from your phone. As our review notes, however, the watchband is one-size-fits-all, so keep that in mind if you're not "averaged-size."