Garmin CIRQA vs Apple Watch Ultra 3: Which Should You Buy?

Overview

These two devices are not really competitors in any traditional sense. The Garmin CIRQA is a screenless recovery band built for athletes who want continuous physiological monitoring around the clock, with no GPS and no display. The Apple Watch Ultra 3 is a full-featured flagship sports watch with multi-band GPS, a large OLED display, and serious triathlon credentials. Comparing them matters only because some athletes may be deciding whether to add a dedicated recovery tracker or invest in a premium all-in-one watch.

Specs at a glance

Display: CIRQA has none; Ultra 3 has a large always-on LTPO OLED
GPS: CIRQA has no onboard GPS; Ultra 3 has multi-band dual-frequency GNSS
Sensors: Both use wrist optical PPG for heart rate and HRV (blood volume via LED light), SpO2, and skin temperature; Ultra 3 also includes a barometric altimeter
Battery life: CIRQA battery life unconfirmed; Ultra 3 is adequate for training but not confirmed for full ultra-endurance events beyond Half Ironman in full GPS mode
Water resistance: CIRQA unconfirmed; Ultra 3 rated for open-water swimming and diving
Weight: CIRQA is a slim band (unconfirmed weight); Ultra 3 is a heavier titanium case
Price tier: CIRQA is expected at a competitive hardware price plus ongoing subscription; Ultra 3 is premium upfront cost, no mandatory subscription
Ecosystem: CIRQA integrates natively with Garmin Connect+; Ultra 3 requires the Apple ecosystem

GPS and tracking accuracy

The CIRQA has no GPS. Full stop. It is a recovery monitor, not a training watch, so route tracking and distance measurement are off the table unless paired with a separate device.

The Apple Watch Ultra 3 offers multi-band dual-frequency GNSS, which is the current high standard for wrist GPS. In independent testing across a 10-mile London course run against four watches including the Garmin Forerunner 965, the Ultra 3 showed inconsistencies in specific segments, with the FR965 edging it out in accuracy. That result puts the Ultra 3 in the very good but not flawless category for GPS performance. For most training and racing up to Half Ironman distance, it is more than capable. For technical trail or ultra-distance events, dedicated Garmin hardware may still have the edge.

Battery life

The CIRQA has no confirmed battery figures at time of writing. Given its screenless, low-power design and always-on monitoring focus, it should last multiple days between charges, similar to Whoop 5.0 and comparable recovery bands, but this is not yet verified by independent testing.

The Apple Watch Ultra 3 delivers enough battery for most training sessions and endurance races up to Half Ironman distance in full GPS mode. It is not suited for multi-day ultra events without recharging. For daily training use, battery is not a limiting factor. For 24-hour or longer races, it is.

For athletes: who wins?

Running: Apple Watch Ultra 3. Multi-band GPS, pace and distance tracking, solid heart rate data via PPG optical sensor on the wrist. The CIRQA cannot track a run.
Trail and outdoor adventure: Apple Watch Ultra 3. Barometric altimeter, rugged titanium build, dive-rated water resistance, multi-band GNSS. The CIRQA brings none of these.
Triathlon: Apple Watch Ultra 3. Multi-sport tracking, open-water swim rating, and proven performance up to Half Ironman. The CIRQA is not a triathlon tool.
Recovery monitoring: CIRQA, conditionally. Its entire purpose is 24/7 recovery and physiological tracking for athletes who already own a GPS watch. If you are in the Garmin ecosystem and want dedicated recovery data without wearing your main watch all night, the CIRQA is built for that. The Ultra 3 offers recovery metrics too, but as a secondary function of a full sports watch.

Verdict

For most athletes, the Apple Watch Ultra 3 is the clear buy. It tracks your training, handles triathlon up to Half Ironman, offers solid GPS accuracy, and does recovery monitoring on top of everything else. The CIRQA is not a replacement for a sports watch and should not be evaluated as one. The CIRQA makes sense only as a companion device for athletes already using a Garmin watch who want dedicated, screenless recovery tracking and are willing to pay an ongoing subscription for it. Buy the Ultra 3 if you want one device that does it all and you live in the Apple ecosystem. Consider the CIRQA only if you already have a Garmin training watch and want to obsess over recovery data without wearing that watch to bed.