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All-day battery life is based on 18 hours with the following use: 90 time checks, 90 notifications, 45 minutes of app use, and a 30-minute workout with music playback from Apple Watch via Bluetooth, over the course of 18 hours.
The company claims it can perform for up to five days on a single charge, theoretically trouncing the Apple Watchâs two-day average. Unlike the Apple Watch, however, the Blaze doesn't support any third-party apps, making it less smartwatch, more smart fitness tracker.