Apple Watch Series 9 Impresses But Hints at Bigger Changes Ahead

Three months into living with the Apple Watch Series 9, the picture is clear: it's a capable device that does what it promises, but it doesn't feel like the leap forward you might hope for at $399.

The Series 9 remains the best smartwatch for iPhone owners, no question. The interface is snappy and intuitive, the health monitoring suite is comprehensive, and it integrates seamlessly with the rest of Apple's ecosystem. If you're choosing between the Series 9 and the cheaper $249 Apple Watch SE, the difference is real—you get ECG monitoring, blood oxygen readings, and skin temperature sensing that the SE lacks. For someone genuinely concerned with tracking their health, those features matter. But here's the thing: the Series 9 feels almost identical to the Series 8 in daily use. If you own a Series 7 or Series 8 already, there's no urgent reason to upgrade.

Two of the Series 9's most interesting features didn't even arrive until after launch. Siri's ability to answer health questions rolled out in December, months after the watch hit stores, and it's genuinely useful—you can ask how many steps you've taken this week, how you slept last night, or what your average walking heart rate is, and get answers without digging through menus. But the feature also exposes Apple's limitations. Siri couldn't tell the reviewer what their most active day was this week. It can't suggest a bedtime based on activity and sleep patterns because Apple Watch doesn't offer sleep coaching the way Garmin and Oura do. The data is processed on the watch itself for privacy, which means Siri can only look back about a week. It's a promising start that hints at what could be, but it's not there yet.

Double Tap—the ability to control your watch by tapping your thumb and index finger together—is similarly intriguing and similarly incomplete. You can scroll through widgets, dismiss notifications, answer calls, play music, and capture photos with your iPhone's camera app. The gesture is responsive, but it doesn't feel natural yet. After three months, the reviewer still finds themselves consciously thinking about the motion rather than doing it instinctively. It's the kind of feature that might become second nature eventually, but right now it feels like a party trick rather than a genuine improvement to how you interact with the device. A colleague found it helpful and accurate, so mileage varies—but the consensus is that it's early days.

Where the Series 9 really falls short is in making sense of the health data it collects. Yes, it monitors ECG, heart rate, blood oxygen, temperature, sleep, and workouts. But competitors like Garmin and Fitbit do something Apple doesn't: they synthesize that data into actionable insights. They'll tell you whether you're ready for a hard workout or need recovery. They offer sleep scoring and coaching. Fitbit is launching an AI-powered program called Fitbit Labs in 2024 specifically to connect the dots between data points. Apple can nudge you to stand up and move, but it can't tell you that you slept poorly last night and should wind down earlier tonight. That gap is widening.

Battery life is another weak point. The Series 9 lasts one to two days depending on use—about average for its price range, but nowhere near the multi-day endurance of Garmin watches or the four-day battery of an Oura ring. After a day with 30 to 40 minutes of exercise, an outdoor walk, and overnight sleep tracking, the Series 9 had 35 percent battery left at morning. It charges quickly—35 to 92 percent in 30 minutes—but that's not the same as not needing to charge every night. For someone serious about sleep tracking, that's a real problem. You can't track sleep and activity without potentially sacrificing one or the other the next day.

What emerges from three months of use is a device that's doing its job competently but not transformatively. The Series 9 isn't a big leap over the Series 8, and the new features hint at where Apple wants to go without quite getting there. Siri's health knowledge and Double Tap suggest that future Apple Watches will be more ambient, more intuitive, less dependent on conscious interaction. But that future isn't here yet. For now, the Series 9 is a solid choice if you need a smartwatch and use an iPhone—just don't expect it to feel like a major upgrade, and don't expect it to match what Garmin and Oura are already doing with health data analysis and battery life.