Whoop
Garmin has filed a US trademark for a wearable device named CIRQA, which tracks physiological data and recovery metrics similar to Whoop bands. The filing, submitted in February and spotted by Gadgets & Wearables, describes measuring physical parameters, bio-signals, stress recovery, alertness, and performance. This follows a January store page leak reported by Android Authority.
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Top tennis players Carlos Alcaraz, Jannik Sinner and Aryna Sabalenka were instructed to remove their Whoop fitness trackers during the 2026 Australian Open. The devices, approved for ATP and WTA tours, remain banned at Grand Slams amid ongoing debates over player welfare and data rules. Tournament organizers are in discussions to potentially allow them in the future.