Suunto Flex Band: Everything We Know About the Leaked HR264

Published November 2, 2026 • By Harris Khan • 11 min read

Suunto looks like it is about to join the screenless band club. On 31 October 2026, photos of an unannounced device surfaced with "SUUNTO FLEX BAND" printed on the back of a small, dark sensor pod, and the regulatory filings behind it point to a launch sometime in the next few months. Suunto has not said a word yet, so this page is our best read of what has leaked, what it probably means, and whether it is worth holding off on a Whoop or a Polar Loop until we know more.

Disclosure: Fitcoin is our product. We are not affiliated with Whoop, Oura, Google, Fitbit, Garmin, Polar, Amazfit, Xiaomi, Samsung, Suunto, Apple, Huawei, Hume Health or any other brand named on this page. We do not sell trackers and we take no affiliate commission. Where Fitcoin appears, it is as the rewards and insights app that reads the data these devices and workouts write to Apple Health or Health Connect. Everything below is a wellness estimate for general fitness, not medical advice.

A quick word on how to read this. Everything below comes from leaked photos, regulatory databases and one anonymous source, not from Suunto. We have tried to be clear about which is which, and we will update this page as soon as there is an official product listing.

What the leaked photos show

The story started with Gadgets & Wearables, who reported on 31 October that a source had sent them photos of a Suunto device carrying the model number HR264, with the words SUUNTO FLEX BAND on the rear of the casing. They chose not to publish the images, but a second write-up the same day filled in the details: "Designed in Finland – Made in China" on the shell, a Suunto logo on a plain dark face, no screen, no obvious buttons, an optical sensor cluster underneath, four charging contacts, and a little puck charger on a USB-C cable marked CC270. Two fabric straps appeared alongside it, one light grey with a hook-and-loop closure and one black, with the sensor module sitting in a cradle rather than being built into the strap itself.

If that description sounds familiar, it is because it describes the same basic recipe as the Whoop, the Polar Loop and the Fitbit Air: a small sensor you wear all day and all night, with the data living in an app rather than on a wrist display. Earlier certification photos, taken before the Flex Band name was readable, put the module at roughly 44mm by 30mm, which is about the size you would expect for something that lives on a wrist or an upper arm. Those dimensions are estimates from a filing photo rather than an official spec, so give them a little room either way.

The paperwork, meanwhile, has been quietly piling up for weeks. Through October the HR264 appeared as a Suunto Bluetooth heart-rate monitor in Singapore's IMDA database, in a Russian declaration of conformity registered on 16 October 2026 and marked as serial production, in the UAE under equipment registration ER66304/26 issued 12 October 2026, and in South Korea. The UAE filing runs until 11 October 2029 and references the usual short-range radio standards, including EN 300 328. In every one of those databases the product is simply called a heart-rate monitor, which is a reminder that regulators describe the radio inside a device, not the marketing around it. The Flex Band name only became public when the photos did.

Why the €179 price matters more than it sounds

The one price we have, €179, comes from a single source speaking to one site, so treat it as a rumour rather than a list price. Even so, it tells us something useful about what Suunto is building.

A plain optical heart-rate strap, the kind you put on for a run and take off afterwards, does not cost €179. Polar, Wahoo and Garmin all sell that kind of sensor for far less. A price in Polar Loop territory only makes sense if the band is designed to stay on your body: tracking sleep, resting heart rate and some sort of recovery or readiness score inside the Suunto app, and perhaps feeding the AI coach Suunto has been rolling out to its watches. None of that is confirmed, but the price rumour is a strong hint about the direction, and it would be a sensible move for a brand whose watches already produce excellent training data.

It also puts the Flex Band in interesting company. The Polar Loop is $199.99 with no subscription and a solid sleep and recovery story in Polar Flow. Garmin's Cirqa band is also $199.99, with Body Battery and Training Readiness in Garmin Connect and no required fee. The Fitbit Air is $99.99 and leans more towards everyday health than sport. Whoop, of course, still charges by the year. If Suunto does come in around €179 without a mandatory subscription, it would land squarely in the "buy it once" camp, which is where most of the recent momentum in this category has been.

What we know so far, as of 2 November 2026

A Suunto device with the model number HR264 has radio approval in Singapore, Russia, the UAE and South Korea, listed as a heart-rate monitor. Photos reported on 31 October show production-looking hardware labelled Suunto Flex Band, with no display, an optical sensor, a four-pin puck charger and fabric straps. One source puts the price at €179 and the launch in late 2026. Suunto has not officially announced any of this.

What a Suunto band would need to get right

Suunto has built its reputation on the outdoors: barometric altitude, route navigation and serious training tools for people who run, hike and ride in places where a phone signal is optional. Its customers are not typically shopping for a sleep score. So the interesting question is not whether Suunto can make a recovery band, it is what problem that band solves for someone who already owns a Suunto watch.

There are a few obvious ones. A big GPS watch is not something most people want to sleep in, so a small band that handles the night and hands the workout back to the watch in the morning makes sense. The same goes for the gym, where a watch gets in the way under a barbell and wrist-based heart rate struggles with grip. If the Flex Band can be worn on the wrist for sleep and moved to the upper arm for hard sessions, the way Polar now allows with its new sport armband, and if it produces a recovery reading you can see without paying monthly, it would slot very neatly into the life of an existing Suunto owner. That is the version we hope they have built.

What we cannot tell you yet is battery life, weight, whether there is any GPS, and whether any features sit behind Suunto's paid coaching tier. A module this size could plausibly run for a week on a charge, or considerably less if it samples heart rate continuously and stores workouts locally. The photos show an optical sensor and charging contacts, and that is the full extent of the confirmed sensor list. Blood oxygen, skin temperature and ECG are all possible but unproven, so if you see a roundup listing them as features, know that it is guessing too.

Should you wait for it?

If you are already settled in Suunto's app and you were about to buy a Whoop mainly for sleep and recovery, waiting a little while seems reasonable. The regulatory trail is far enough along, with serial production declared, live radio certificates in several countries and hardware carrying a retail name, that a launch in the next few months looks more likely than not. A late-November or December release would fit the source's timing, and CES in January is the usual landing spot if a fourth-quarter plan slips a little. Companies do sometimes certify products and then sit on them, but the pattern here looks like a product that is close.

If you need a screenless tracker for a training block that starts now, there is no reason to put your plans on hold for a rumour. The Polar Loop, the Garmin Cirqa and the Fitbit Air are finished products with return windows and real reviews. The same goes if you were hoping for a ring, because nothing in the HR264 photos suggests one; Garmin's own unannounced Cirqa ring is a separate rumour with its own paperwork. And if the €179 price only appeals because you assumed there would be no monthly fee, keep in mind that Suunto's app currently has a free tier and a paid AI coach on the watch side, and nobody yet knows which side of that line the band will sit on.

We will update this page as soon as Suunto publishes an official listing. In the meantime, if you want to see how the bands that already exist stack up, our guides to Whoop alternatives and fitness trackers without a subscription cover the current field in detail.

Sources: Gadgets & Wearables' 31 October 2026 report and the same-day photo write-up, October regulatory listings in Singapore, Russia, the UAE and South Korea, and Suunto's public site, which did not list a Flex Band when we checked on 2 November 2026. The €179 price and late-2026 launch window are from an unnamed source and have not been confirmed by Suunto. We will test the band once it is on sale.

More on screenless bands: Polar Loop review, Fitbit Air review, Garmin Cirqa band review, screenless tracker vs smartwatch.

Frequently asked questions

Is the Suunto Flex Band real?

Almost certainly, yes. A Suunto device with the model number HR264 has radio approval in several countries, and photos reported on 31 October 2026 show production hardware labelled Suunto Flex Band. Suunto itself has not announced it yet, so details like features, price and date are still unofficial.

How much will the Suunto Flex Band cost?

One source told Gadgets & Wearables to expect around €179. That has not been confirmed by Suunto. If it holds, the band would sit in the same price bracket as the Polar Loop and Garmin Cirqa band, which both cost $199.99 without a subscription.

When does the Suunto Flex Band launch?

The same source pointed to late 2026, most likely November or December. Nothing on Suunto's website confirms a date yet, and a slip to CES in January 2027 would not be unusual for a product at this stage.

Will it need a subscription?

We do not know yet. Suunto's watch app has a free tier and a paid AI coaching option, and Suunto has not said which features the Flex Band will need. Most recent screenless bands from Polar, Garmin and Fitbit work without a required subscription, so there is reason to hope Suunto follows suit.

Should I wait for it instead of buying a Whoop?

If you already use Suunto's app and you are not in a hurry, waiting a couple of months is sensible. If you need a screenless band now, the Polar Loop, Garmin Cirqa and Fitbit Air are all available today with return policies, and all three work without a monthly fee.


About the author: Harris Khan is the co-founder and CTO of Fitcoin, a UK fitness-rewards and health-insights app that reads Apple Health and Health Connect.