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Smart rings

10 products · augments continuous sensing · 7 with sourced capabilities

A ring is the smallest place to put a sensor and the only one people keep on overnight. That is the whole argument: finger-based sensing gets continuous data through sleep, which is where most of the interesting physiology happens. The trade-off is equally simple — a ring has almost no surface for a display or a speaker, so everything it knows has to be read somewhere else.

Products
10
Makers
5
Published price
$50–$379
With an image
10
Makers RingConn 3 Therabody 3 Circular 2 Ultrahuman 1 Oura 1

What is counted here

Rings with sensors that record at least one physiological signal continuously and ship with software to read it.

What is not

Rings that only track steps through a phone, jewellery with an NFC chip and no sensing, and discontinued models whose maker no longer publishes a product page.

A product belongs to exactly one category. Where a device could sit in two, we file it by what it does most of the time — and say so on its page.

How to choose between them

  1. 1

    Check the subscription. Several rings are cheap to buy and expensive to keep, because the data lives behind a monthly fee.

  2. 2

    Size matters more than features: a ring that does not fit the finger you will wear it on measures badly or not at all.

  3. 3

    Sleep staging is the capability most worth verifying — it is where manufacturers differ most and where marketing is loudest.

Apps that work with smart rings

All apps →

Head-to-head in this category

Questions this category raises

Do smart rings need a subscription?
Some do for the full feature set. The price on each product page is the hardware price as published; it does not include a subscription unless the maker states it.
Can a ring measure blood pressure?
Some claim it. Blood pressure is a regulated measurement in most markets, so treat the claim as a claim — the product page shows the sentence it is based on.

Other things a human can augment

Sorted by what the device augments, not by what it costs. Every product card links to the maker's page; every claim on a product page links to the sentence it came from. Catalogue state: 10 published products in Smart Rings, last read 31 Oct 2026.