Google says the Pixel Watch 4 should last 'up to 40 hours,' so I took the 45mm model through real-world battery tests, exploring dual-band GPS, cellular, streaming, and more. You're not ready for how

Google promises the Pixel Watch 4 will last 30 or 40 hours per charge, depending on the size you pick. I put my Pixel Watch 4 45mm LTE through several rounds of battery tests over the past month, so I can tell you before you pay extra for size or cellular how long the Watch 4 really lasts, particularly for demanding tasks like music streaming or GPS workouts.

Long story short, anyone upgrading from a Pixel Watch 1 or 2 is going to be pleasantly shocked by how much extra power they're getting.

I touched on battery life in my Google Pixel Watch 4 review, but I didn't dive into specific use cases like phone calls or cellular streaming. The table below breaks down what to expect from a Pixel Watch 4 45mm.

(Since I didn't have a 41mm model to test, we can only assume that it would last about