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A couple more Torx screws and some connectors hold down the green motherboard.

The board doesn't come out alone, though! The battery hitches a ride, lightly adhered to its underside.

The battery is a 1.02 Wh (266 mAh @ 3.85 V) cell, slightly less potent than the 1.17 Wh pack from the Apple Watch Series 6 and a far cry from the 2.16 Wh cell in the Xiaomi Watch.

Despite the intense opening procedure, we're getting the Sense that this Fitbit is considerably less complex than any Apple Watch. That's good for these repairs—battery, board, and screen are all accessible within a few steps! (Even if the first one is a doozy.)