Fitbit OS 4.1 Update With New Sleep Fitbit OS 4.1: Fitbit smartwatch users FitBit Versa OS 4.1 Update. Major Fitbit OS 4.1 Walkthrough and Review Announcing Fitbit OS SDK 4.1Fitbit OS 4.1 Update to Bring Enhanced Fitbit Versa 2 Receives 4.1.1 Firmware Fitbit update adds color always-on Upcoming Versa update offers a glimpse Fitbit OS 4.1 Is Coming On December 3 OS 4.1 brings a slew of upgrades Fitbit OS 4.1: Always-on display, new Fitbit OS 4.1.1 Firmware Update Fitbit OS Update for Versa 2, Ionic bricked Ionic watches after recent updateFitbit announces OS 4.1 update for its FitbitOS 4.1 announced along with new
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