The Fitbit Air ($99.99) and Inspire 3 ($99.95) are priced almost identically but solve very different problems. The Air is screenless by design — it's a passive 24/7 tracker for people who want health data in an app without notifications, glances, or wrist distractions, paired with Google's new AI Health Coach. The Inspire 3 has a 0.81″ color AMOLED screen, shows smart notifications, gives you a Smart Wake vibrating alarm, has 10-day battery vs 7, and works with the classic Fitbit app. Pick the Air if you're Whoop-curious or notification-fatigued. Pick the Inspire 3 if you want to see your stats on your wrist.

No. The Fitbit Air is screenless by design. It has a single status LED that responds to a firm double-tap: white means the device is working and the battery is between 20-100%, red means low battery. All of your data, insights, and coaching live in the Google Health app on your phone. If you want a screen, the Fitbit Inspire 3 has a 0.81″ color AMOLED display at a nearly identical price.

Google has not published GPS specifications for the Fitbit Air. Distance is calculated from motion data captured by the 3-axis accelerometer and gyroscope. For mapped routes, real-time pace tracking, and outdoor run/cycle accuracy, the Fitbit Charge 6 has built-in GPS + GLONASS.

No. The Fitbit Air does not have an ECG sensor. It does monitor your heart rhythm passively while you're still or sleeping and looks out for signs of atrial fibrillation (AFib) using the optical heart rate sensor. For on-demand ECG readings, the Fitbit Charge 6 or Fitbit Sense 2 are the only current Fitbit devices that offer it.

Up to 7 days on a single charge. A full charge from 0-100% takes about 90 minutes. The quick-charge feature gives you a full day of battery from just 5 minutes on the cable — useful if you forgot to charge before bed. For comparison: Inspire 3 lasts up to 10 days, Charge 6 lasts up to 7 days, Versa 4 and Sense 2 last up to 6 days each.

Google Health Premium ($9.99/month or $99/year) unlocks Google Health Coach — an AI coach built with Gemini that delivers adaptive fitness plans, personalized sleep insights, proactive health guidance, a workout library, and mindfulness sessions. The Fitbit Air includes 3 months of Premium free. You don't need Premium to use core features — base tracking (heart rate, steps, sleep stages, SpO2, HRV, breathing rate, activity) is included with the device. Premium is what powers the AI coaching layer.

No. The Fitbit Air requires the new Google Health app — not the classic Fitbit app. Existing Fitbit users will need to download Google Health and create or sign in with a Google Account. The new app is compatible with iOS 16.4+ and Android 11+. The Google Health app starts rolling out alongside the Air, and you can pair both a Fitbit Air and a Google Pixel Watch to the same account if you own both.

The Fitbit Air is water resistant to 50 meters (5 ATM) — safe for swimming, showering, and rain. Google recommends drying the band after water exposure for skin comfort. Not designed for scuba, hot tubs, or high-velocity water sports. The Special Edition Stephen Curry band adds a water-resistant coating engineered for high-intensity, sweaty workouts.

The Fitbit Air housing weighs just 5.2 grams. With the standard textile band, it's about 12 grams total. The Inspire 3 is about 20 grams with its band, the Charge 6 is about 31 grams, and the Versa 4 is about 37 grams. That makes the Air roughly 40% lighter than the Inspire 3 and 60% lighter than the Charge 6 — the lightest, smallest tracker Fitbit has ever made. You can wear it 24/7, including during sleep, without noticing it's there.

The standard Fitbit Air comes in four colors, each with a different stainless steel buckle finish: Obsidian (matte black SS), Berry (polished champagne gold SS), Lavender (polished silver SS), and Fog (polished silver SS). There's also a Special Edition co-designed with Stephen Curry: Rye band with pyrite stainless steel buckle, featuring a water-resistant coating and raised interior print engineered for airflow during high-intensity workouts. Additional accessory bands are available in active silicone and elevated modern styles.