Oura
The sleep tracker you forget you're wearing.
What they're known for
A titanium ring with research-grade sleep staging, HRV, and temperature — data without a screen.
The Oura Ring Gen 4 is the strongest argument that sleep trackers shouldn't have screens. A titanium ring running research-grade sleep staging, HRV, heart rate, blood oxygen, and skin temperature, with a battery that lasts most of a week. Nothing buzzes, nothing glows, nothing comes to bed with you except the data.
The readiness score is the habit loop that makes it stick: last night's decisions show up as this morning's number, and the feedback quietly reshapes behavior. For people who want the signal without wearing a computer, this is the category answer — and the wearable most likely to still be on in a year.
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