The wearable industry has spent ten years convincing the world to put a computer on its wrist. It has succeeded. The Apple Watch is the best-selling watch in history by any sensible measure. Garmin has a market cap larger than most luxury watchmakers. Oura has redefined what a ring is for. The wrist is colonised. The ear is mostly colonised. The finger is next.
The question for the next decade is not whether more people will wear wearables. It is what those wearables will do for them, and, increasingly, what form they will take. The watch is not going away. But it is probably not going to be the dominant form factor of 2035. Here is how we think the next phase plays out.
Phase 1: Counting (2012 to roughly 2018)
The early wearable industry was a counting industry. Steps, calories, floors climbed, minutes of exercise. The Fitbit era. The job was motivational: make an invisible part of your daily behaviour visible, and behaviour changes.
It was a useful phase. A generation of users learned that they walked less than they thought, slept worse than they thought, and sat more than they thought. The counting gave them a feedback loop. Some of them changed.
Phase 2: Health monitoring (2018 to now)
Sometime around the Apple Watch Series 4, the category shifted. ECG on the wrist, atrial fibrillation detection, blood oxygen saturation, sleep stages, skin temperature, blood pressure. The wearable stopped being a pedometer and started being a diagnostic tool.
This phase is where we still are. It is an extraordinary engineering achievement and a genuine public health contribution. People have been hospitalised because their Apple Watch flagged an arrhythmia. People have been diagnosed with sleep apnoea because their Oura kept flagging respiratory dips. Real medical value comes out of this phase, and it will keep coming.
Phase 3: Prediction (now to roughly 2030)
The next step is the one the industry is starting to take: not just monitoring but predicting. Your wearable knows enough about your resting heart rate, your HRV, your skin temperature, your respiratory rate, and your sleep architecture to see patterns before you feel them. You are getting ill, and your ring knows it three days before your throat does. You are overtraining, and your watch flagged it a week ago.
Prediction is where the category earns its next decade. It is also where the hardest ethical questions arrive. A device that knows you are about to be ill is a powerful thing. A device that tells your insurer you are about to be ill is a different, more unsettling thing. The industry has not really started that conversation yet. It will have to.
What comes after the watch
The watch is the dominant wearable of 2026 because it is the form factor that successfully absorbed the first three phases of the category. It has a screen when you need one, sensors in a useful place, and cultural precedent for being on your body. It does not follow that it will dominate the next three phases.
There are already credible successors being worn by millions of people. The ring has its own momentum, especially for sleep and passive health. The earbud is an underappreciated contender; it sits in an extraordinary sensor location, and its owners put it on without thinking about it. Smart glasses, finally, are becoming genuinely usable: Ray-Ban Meta's product category is being taken seriously, and the next generation will do more.
Beyond these, there are form factors that are still mostly in research but plausibly near consumer shelves: patches that read glucose continuously without a needle, smart fabrics that track posture, rings that read blood pressure by pulse wave analysis, earbuds that double as clinical-grade cardiac monitors. Most of these will not ship. A few will, and a few will be very significant when they do.
The long-term pattern: ambient, distributed, invisible
The trend across all of these form factors is the same. Wearables are getting smaller, more specialised, and less visible. The dominant wearable of 2035 is probably not a single device but a quiet federation of them: a ring that owns sleep, earbuds that own hearing and cardiac, glasses that own interface, maybe a patch that owns glucose, and a phone or watch that aggregates the lot.
This is the shift from wearable technology as a product category to wearable technology as infrastructure. You will not think about which wearable to put on in the morning any more than you think about which wifi router is behind your walls. The sensors will be there, collecting, interpreting, predicting. The only question will be what you want to do with the output.
Why this is probably fine
There is a reasonable anxiety that all of this will produce a world where every body is constantly measured and every measurement is commercially exploited. That is a real risk, and the industry should be honest about it. But the alternative view, which we find more persuasive, is that health information has been unequally distributed for the entire history of medicine, and wearables are the first technology class that puts serious diagnostic capability in the hands of ordinary people at a price most of them can afford.
The category is still early. It will still make mistakes. But the trajectory, from counting to monitoring to prediction to ambient infrastructure, is genuinely one of the most interesting stories in consumer technology. The watch got it started. What comes after the watch will finish the job.