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A $399 titanium ring that the brand says reads pulse and blood pressure with no cuff to calibrate it, and no subscription behind the data. It is a pre-order shipping October 2026, and the brand publishes no accuracy validation.
Price: $399 · Verified: 2026-08-14
A $399 titanium ring that the brand says reads pulse and blood pressure with no cuff to calibrate it, and no subscription behind the data. It is a pre-order shipping October 2026, and the brand publishes no accuracy validation.
Signal Ring is a titanium-outer, resin-inner ring from Vital Signals that the brand states tracks pulse and blood pressure, with no cuff needed to calibrate it. It is $399 one time and there is no subscription: the FAQ states plainly that the ring works without one and that the app and its features come with the purchase, and the store carries no subscription mechanism at all. The box holds the ring plus a charging case, and the brand rates battery at up to 5 days when using that case rather than quoting a ring-alone figure. Sizes run 5 to 13, it is usually worn on the index finger, it is IP68 rated, and it connects over Bluetooth LE to an iOS or Android phone. Shipping is US only. Warranty is one year.
The limits are real and worth stating first. This is a pre-order: the brand says shipping begins October 2026, so no units are in buyers' hands and there is no independent teardown yet. It is also not a general fitness ring. Vital Signals' own FAQ says it is not a general fitness tracker and that sleep, HRV, and respiratory rate will be added later, so it does not replace a sleep ring. Nothing on their site publishes accuracy evidence: across every page we crawled there is no FDA or 510(k) mention, no ISO 81060 or AAMI reference, no clinical study, and no mmHg error figure. The headline claims of the world's first calibration-free blood pressure wearable and blood-flow readings 4 to 5 times faster than other blood pressure trackers are the brand's own, unverifiable from anything they publish. Two more caveats: background readings need your phone in range, and the app collects height, weight, birth year, and sex assigned at birth to calibrate its algorithms and personalize readings. Returns run 30 days from delivery, refundable minus a $25 handling fee for the sizing kit.
It suits a buyer who specifically wants pulse and blood pressure trend data in ring form, is comfortable putting money down months ahead of delivery, and already has sleep and recovery covered by another device. Vital Signals describes Signal Ring as a wellness device for maintaining or encouraging a healthy lifestyle, not for diagnosing a condition or making the call a clinician makes, and that is the frame to keep. We will re-verify specs and price when the ring actually ships.
Buyers who want passive pulse and blood pressure trend data in a ring, pay once with no membership, and are comfortable pre-ordering ahead of an October 2026 ship date.
You want sleep, HRV, and readiness in the same ring, since the brand says those are not here yet, or you want published accuracy validation before you buy, since Vital Signals publishes none. Also skip if you ship outside the United States.
Specifications
Where this fits
Vital Signals Signal Ring cross-shops across several editorial surfaces on this site: the full brand catalog, the price band it qualifies for and the in-depth guides for its category.
Vital Signals Signal Ring - buyer FAQ
Does the Signal Ring need a subscription?
No. Signal states there is no subscription fee and that no subscription is required to access data and insights, so the app features come with the ring itself. The ring is currently set up to track pulse and blood pressure, with sleep, HRV and respiratory rate listed by Signal as coming later.
Does the Signal Ring need to be calibrated with a blood pressure cuff?
Signal says no, stating the ring never needs a cuff, including for calibration. The brand describes a high-speed optical sensor reading the pulse wave at the finger, rather than comparing each later reading against a stored cuff baseline. Signal describes it as a wellness device, not a diagnostic or medical device.
What sizes does the Signal Ring come in, and which finger do you wear it on?
Signal Ring is offered in sizes 5 to 13 and is usually worn on the index finger. A sizing kit is included with the order, and Signal says the kit ships right away, ahead of the ring itself. The ring has a titanium outer surface and a resin inner surface.
How long does the Signal Ring battery last, and is it waterproof?
Signal lists up to 5 days of use when using the included charging case. The ring is IP68 rated, which Signal describes as up to 30 minutes in 3 meters of water, plus resistance to rain and handwashing. It connects over Bluetooth LE and needs your phone nearby to sync readings.
When does the Signal Ring ship, and can I return it?
Signal lists shipping as expected to begin in October 2026, and orders ship within the United States only at this time. Preorders are fully refundable within 30 days of receiving the ring, minus a $25 non-refundable handling fee for the sizing kit. The ring carries a 1 year warranty.
Signal Ring - No-Subscription Blood Pressure Ring
$399 · Verified 2026-08-14
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