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

I tested Pixel Watch 4 battery use for GPS, calling, streaming over Wi-Fi or LTE, and other tools, to help you decide whether you need the 41mm or 45mm.