Google's new Fitbit Air enters the screenless tracker market as a direct rival to Whoop. Weighing just 5.2 g and measuring 34.9 × 17 × 8.3 mm, the pill‑shaped band slips onto three interchangeable straps. Priced below comparable premium devices, it pairs with the freshly rebranded Google Health app, which replaces the legacy Fitbit experience.

The Air shares its sensor suite with the Inspire 3 but drops the display, saving a gram. Battery life averages seven days, draining roughly 15 % daily, half of Whoop’s advertised two‑week runtime. Fast magnetic charging tops out at 58 % after five minutes, so a brief plug‑in restores enough juice for another full day of tracking.

All interaction occurs through the Google Health interface, where the Gemini‑powered AI Coach delivers real‑time readiness scores and occasionally scolds users for overexertion. The app’s swipeable dashboard presents cardio load, steps, sleep and heart‑rate metrics in glanceable rings and bars. By bundling thin hardware with aggressive AI, Google aims to capture health‑focused consumers who previously gravitated toward Whoop’s ecosystem.

Whoop’s latest funding round valued the company at $10 billion, underscoring investor appetite for data‑rich wearables. Google’s entry could pressure subscription models, as the Air ships without a mandatory fee. Early adopters will decide whether the AI‑driven insights justify swapping a proven Whoop for a slimmer, cheaper alternative.