Garmin Cirqa tracks overnight health. Catching the workout is the gamble

Garmin Cirqa is a $199 fabric strap over a plastic puck, with no screen and one ridged button on the side. Whoop still wants a subscription for a similar idea. Fitbit Air does it for $99 and almost disappears on the wrist. Garmin dumped its watch health stack onto a band you own, then asked you to read Garmin Connect in the morning.

The button is the tell. Screenless rivals mostly pretend you never need to start anything. After a month of testers wearing Cirqa next to Whoop 5.0, Fitbit Air, Polar Loop and Amazfit Helio, that switch looks less like a flourish and more like a workaround. Overnight health holds. Catching the workout still wants a press.

Cirqa did not get a new health engine. It inherited Body Battery, Training Readiness, HRV status, nightly skin temperature, sleep stages and a Health Status view that compares your vitals with your own baseline. It skipped ECG and a barometer, so there is no medically certified AFib check and no stair count. Garmin's older Elevate Gen 4 sensor sits in the puck.

Rob, the researcher behind The Quantified Scientist, ran early nights against a Polar H10 chest strap and an EEG headset. Nighttime heart rate and HRV followed the strap closely enough that he called the overnight tracking quite good. Deep sleep agreed with the EEG reference 77 percent of the time, among the best he has seen. REM was the weak cell at 46 percent, with Cirqa often logging none of it in the first half of the night. Indoor cycling later correlated 0.99 with the chest strap; mixed running landed at 0.93. Wrist-based lifting still fell apart under tension.

Dan Bracaglia at Tom's Guide wore Cirqa for more than two weeks, including a stretch with Fitbit Air on the other wrist. One ordinary night produced almost the same duration and score: 7 hours 2 minutes and 82 on Garmin, 6:45 and 83 on Fitbit, resting heart rate 60 versus 61. Garmin then added restless movements, respiratory rate, Body Battery charge and a skin-temperature delta that Air did not show. Cirqa also talks to Natural Cycles; Fitbit Air still does not.

Matt Evans at TechRadar, after a week of 24-hour wear, said most people looking for a simple screenless tracker "will be just fine getting the Cirqa."

Ray Maker of DC Rainmaker spent 30 days on the band, sometimes with a second Cirqa on his bicep. He is blunt about launch quality: "This is, by far, the buggiest launch of a Garmin product in years."

The damaging failure is automatic workout detection. Garmin only steps the optical sensor into high-fidelity mode when it thinks you are exercising. Whoop and Fitbit keep a full-day stream, so you can stretch or create a workout later and the heart-rate curve is still there. Cirqa does not. Miss the detection and that hour of HR is gone. Maker described a three-hour ride split into Unknown, Hike and Gravel Ride, with a longest stop of three or four minutes. Whoop logged the same ride as one activity, to the minute. Two weeks earlier Cirqa missed a 60-minute ride of reasonable intensity entirely.

On his YouTube review, DesFit put it more mildly: Cirqa relies more on manually recording a workout than on automatic detection. Press the side button, or start from the app, and most of the hole closes. Maker's wrap is the same point: if you start every workout yourself, "these issues won't likely impact you." That is a strange sentence to write about a device sold as something you forget you are wearing. The product, he added, "should have baked in the oven longer."

Garmin rates Cirqa at up to 10 days. Pulse Ox is off by default, and turning it on for sleep is how Health Status gets blood-oxygen data. DesFit charged two pods together and wore both around the clock, with a couple of hours of workouts a day. The unit with sleep SpO2 hit a low-battery warning at five days, on track for about five and a half. The unit with SpO2 off used about half as much power, which lands on Garmin's brochure number. That 10-day claim, he said, assumes no SpO2 and 30 minutes of activity. Restless sleep plus Pulse Ox restarts the measurement; his nights burned 8 to 10 percent, Maker's quieter ones 1 to 3 percent.

Maker's month of screenshots sat around 20 percent drain per day. Realistic average with sleep Pulse Ox on: five to seven days. "Don't expect 10 days of battery life here on Cirqa." Whoop, on the same tester, still delivered its 14 days. Tom's Guide had the opposite week: ten days straight, workouts included, 20 percent remaining. A still sleeper with SpO2 off gets the spec sheet. A tosser who wants overnight oxygen data does not.

Whoop still rents the hardware. Cirqa you keep. Core metrics sit on free Garmin Connect; Connect+ is $6.99 a month for coaching extras Maker did not enable. Extra straps start around $50. Fitbit Air is half the price and smaller. Cirqa is the middle: twice Air's cost, none of Whoop's mandatory dues, and Garmin's deeper training metrics if you actually capture the sessions.

Maker does not buy the idea that this is only for existing Garmin owners. In the video he said it is for anyone who wants 24/7 health and workout tracking. Then he put his Fenix back on, because he wants a flashlight and the time at night and does not touch his phone until morning. DesFit liked sleeping with the puck more than a watch. Bracaglia placed it between Air and Whoop.

The overnight data is already worth the wrist space. The fantasy where you never start a workout is not. Garmin shipped a sensor pack that still needs a press.