Garmin has entered the screen-free tracker market with the CIRQA, a band with no display, one button and the option to wear it on your wrist or upper arm. The Quantified Scientist got an early sample, put a detailed list of technical questions to Garmin, and ran a first day of heart-rate tests. Here’s what we know so far — and what still needs proving.
- ›Garmin’s first screen-free wearable — one button, everything else in the app.
- ›Uses the Elevate V4 sensor, the same generation as cheaper Forerunners.
- ›Wearable on wrist or upper arm, with algorithms that adjust to the location you select.
- ›Broadcasts heart rate over ANT+ and Bluetooth — usable as an external sensor.
- ›Early data: indoor cycling near-perfect, running mixed, lifting weak — on one day, on the wrist.
What Garmin confirmed about the hardware
Ahead of the first tests, Garmin answered a detailed technical questionnaire. The specifics matter more than usual here, because a screen-free band lives or dies on how it behaves in the background:
| Feature | What Garmin says |
|---|---|
| Sensor | Elevate V4 optical sensor plus a skin-temperature sensor — the same generation used in cheaper Forerunner models |
| Battery | Up to 10 days, depending on use (pulse oximetry can cost a couple of days) |
| Wear location | Wrist or upper arm — you select it in Garmin Connect, and the algorithms adjust (including sleep) |
| Heart-rate broadcast | ANT+ and Bluetooth, to Garmin and non-Garmin devices |
| Controls | A physical button, assignable to any of 80+ activity profiles |
| Auto-detection | Activities of 15 minutes or more; the classification personalises to you over several weeks |
| Sleep algorithm | Essentially the same one Garmin watches use, tuned slightly per wear location |
First heart-rate results
Tested against an ECG chest strap on day one, worn on the wrist:
| Exercise | First-day result | Reading |
|---|---|---|
| Indoor cycling | Near perfect | Tracked the reference closely throughout |
| Running | Mixed | Caught the dips well, but produced some false high peaks and lag |
| Weightlifting | Misses peaks | Expected on the wrist — one double-heart-rate artifact |
The pattern is familiar: easy, steady indoor efforts are near-perfect, while running showed occasional false peaks (readings around 170 bpm during efforts that weren’t all-out) and some lag. Notably, it did catch the dips in heart rate during intervals, which is where many devices fail. Wrist-worn lifting results were weak, as they are for essentially every device.
These first tests and Garmin’s technical answers come from The Quantified Scientist (Rob, a post-doctoral scientist), who compared the CIRQA against a Polar H10 ECG chest strap on day one. The device was on loan from Garmin, which he discloses. We summarise and add context. Watch the full video → (The Quantified Scientist on YouTube).
The interesting part: it can replace or complement a watch
The CIRQA’s most useful trait may be flexibility. Because it broadcasts heart rate over both ANT+ and Bluetooth, it can act as an external heart-rate sensor for a watch or gym equipment — and worn on the upper arm, that’s a placement that generally reads more accurately than the wrist.
Garmin’s own suggested use case is telling: wear the CIRQA all day and overnight, then switch to a Forerunner for workouts where you need GPS, a display and guidance. Just remember Connect prioritises rather than merges — so your primary wearable setting decides which device’s data counts.
What we still don’t know
The open questions are the ones that decide whether it’s worth buying: how it performs on the upper arm (likely better), whether the running artifacts persist across repeated sessions, how good its sleep staging is in practice, and whether the personalised activity detection genuinely improves over the weeks Garmin says it needs.
While you wait, compare 36 current models by battery, sensors and price in our free Smartwatch Finder →, or read our Fitbit Air review — the other screen-free tracker worth knowing about.
Frequently asked questions
Does the Garmin CIRQA have a screen?
No — it’s Garmin’s first screen-free wearable. It has a single physical button, and everything else lives in the Garmin Connect app.
Can you wear it on your upper arm?
Yes, with an armband. You have to tell the app where you’re wearing it — it doesn’t detect this automatically — and Garmin then adjusts its algorithms, including sleep staging. Rep counting and wheelchair pushes are the two features that don’t work on the arm.
What happens if you also wear a Garmin watch?
Garmin Connect does not merge the two. It uses whichever you set as your primary wearable to break ties for overlapping data like sleep, steps and Body Battery.
Does it need an internet connection?
No. In early testing it kept working offline — a practical advantage over some cloud-dependent rivals.
Sources
First tests and manufacturer answers: The Quantified Scientist — Garmin CIRQA first tests. Preliminary data from one day of use. Context added by Smartwatch Trends. See our research process.