The Gear Fit features a battery that can theoretically be changed, but requires you to dismantle the screen assembly to get to it.
The iFixit team are on a tear lately. After dismantling the Galaxy S5 and Gear 2, the team set its sights on the Gear Fit, Samsung’s first fitness tracker. The Gear Fit has a 1.84-inch curved AMOLED screen with a resolution of 432 x 128. It is powered by a 180 MHz ARM Cortex M4 CPU and connects to devices using Bluetooth 4.0 LE. The device comes with an accelerometer, a gyroscope, and a heart rate sensor and has a battery that lasts for three to four days.
The Gear Fit comes with an easily removable band and allows users to use customized bands for the device. The wrist-side of the device features the heart rate sensor along with the charging cradle that attaches to the back of the charger. The Gear Fit does not feature any screws, which means that accessing the innards requires the removal of the screen.
The screen is secured by adhesive, and the frame of the device is attached to the screen assembly. The motherboard itself is segmented into three sections to accommodate the curved nature of the device. Doing so has allowed Samsung to fit in a regular PCB and not a flexible one.
The motherboard revealed that the Gear Fit only has 16 MB flash memory, unlike the 4 GB storage that is present in the Gear 2 and Gear 2 Neo. The Cortex M4 CPU used in the device is manufactured by STMicroelectronics, while the Wi-Fi and Bluetooth 4.0 LE receiver is from Broadcom.
The 210 mAh battery is claimed to last two to three days on a single charge and is ensconced in a small plastic shroud. The battery can be changed out by the user, but the difficulty in getting to it means that the Gear Fit gets an overall score of 6 out of 10. However, the battery is the only thing that can be changed as all other interior hardware is soldered onto the motherboard.