Google's Pixel Watch 4 has arrived with a sleeker design, better battery life, first-of-its-kind emergency satellite connectivity, and an AI-powered health coach, giving even the most established smartwatches a serious run for their money.

Samsung's Galaxy Watch 8, on the other hand, builds on more than a decade of experience, pairing advanced health metrics like Vascular Load and Antioxidant Index with seamless integration across Galaxy phones and the broader Samsung ecosystem.

As smartwatches (and now smart rings) evolve from nice-to-have phone companions into serious health tools with lifesaving safety features and advanced vitals tracking, both Google and Samsung are stepping up their game to earn a permanent spot on your wrist. And while we haven't tested the Pixel Watch 4 in the wild just yet, here's how it stacks up against the Galaxy Watch 8 -- at least on paper.

Both nail the basics

Each watch starts at $350 and comes in two sizes. The Pixel Watch, however, gets pricier at the top end, with the larger LTE version costing $70 more than the equivalent Galaxy Watch.

Memory, processing power, mobile payments and most core smart features are on par and best in class. They're both running the latest Wear OS 6 along with Google's game-changing Gemini voice assistant built-in right out of the gate. Though the Pixel Watch 4 has a slight edge because it can summon the assistant with just the raise of the wrist (no "Hey Google" needed). But the Galaxy Watch 8 does offer gesture control for other shortcuts.

Design, display, dimensions and durability

The Pixel Watch 4 sticks with its signature minimalist, round design. It comes in 41mm and 45mm sizes, with a rounded case and no visible frame. The screen curves outward in a seamless, bubble-like finish that gives it an all-screen look.

The Galaxy Watch 8, by contrast, embraces a bolder, more divisive design. Its circular display sits inside a wider squared-off base with softened edges, available in 40mm and 44mm options.

The Galaxy Watch's display makes content look crisper, but the Pixel's all-screen design and slightly larger dimensions gives it more usable screen real estate that's easier to see from every angle. And they both have an always-on display option. One advantage of the Galaxy Watch however, is that it's a couple grams lighter, making it more comfortable to wear, especially at night. 

Both come in silver and dark gray finishes, but only Google offers a gold option. Samsung's flex is the Galaxy Watch 8 Classic, a pricier sibling with a sleeker design and fan-favorite rotating bezel. They each have their own proprietary interchangeable band system with customizable options and standard durability (5ATM, IP68), meaning each should be able to stand water, dust and particles without any issue.

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Health and safety features

Both watches cover the basics: advanced heart rate, ECG, blood oxygen and temperature tracking. Samsung pushes further with skin analysis that tracks carotenoids (a key indicator of nutrition and overall health) and advanced heart metrics.

The Pixel Watch 4 may not measure antioxidant levels, but its overall health package is more robust and easier to understand thanks to the Fitbit app integration. It also has a new retroactive workout detection feature that registers your workout even if you forget to press start. Most importantly, it debuts an AI coach that helps decode all your health data and uses it to make personalized training plans. You can even ask questions like "Should I workout or sleep in an extra hour?", or " How do I improve my VO2 max?" 

The catch: We won't be able to test the Pixel 4's AI coach in the wild until October, and even then it'll launch in preview mode first. It's also tied to Fitbit Premium, which requires a $10/month subscription fee, though Pixel Watch 4 owners may get a free trial period. All of Samsung's health features and data are free. 

Safety is also a Pixel highlight. Both watches include fall detection and SOS alerts, but Google adds loss-of-pulse alerts, a safety check feature and emergency satellite connectivity that lets you send out a cry for help even when you're off the grid without phone or cell service in sight (LTE models only, free for two years).

Battery and charging

Google claims a 30-40-hour battery life for the Pixel Watch 4 (depending on size), while our real-world battery testing of the Galaxy Watch 8 (40mm) delivered 26-30 hours with always-on display active. That gives the Pixel a small edge on paper.

A clear win for the Pixel Watch is charging speed: It powers up to 50% in just 15 minutes on the new charging dock and reaches a full charge in about an hour. The Galaxy Watch takes around 80 minutes to fill and only hits 13% after 15 minutes.

Bottom line

If you're already in Samsung's ecosystem, you may not feel compelled to switch (unless you truly dislike the new design). But if you're health-focused and open to something new, the Pixel Watch 4's October health coach rollout could make it the one to watch. Check out the specs chart below for more on how the Pixel Watch 4 and Galaxy Watch 8 stack up against each other.