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What you need

This teardown is not a repair guide. To repair your OnePlus Watch, use our service manual.

  1. OnePlus Watch Teardown, OnePlus Watch Teardown: step 1, image 1 of 1
    • This Watch doesn't tick, but it does have some other nifty specs and features:

    • 1.39-inch display with 454 × 454 resolution

    • 4 GB internal storage

    • Wi-Fi, Bluetooth 5.0, and built-in GPS

    • IP68 ingress protection, rated for water resistance of up to 50 meters (5 ATM)

    • Accelerometer, gyro, barometer, compass, heart rate, SpO2

    • Running on a custom RTOS (Real-Time Operating System)

  2. OnePlus Watch Teardown: step 2, image 1 of 3 OnePlus Watch Teardown: step 2, image 2 of 3 OnePlus Watch Teardown: step 2, image 3 of 3
    Tool used on this step:
    Pro Tech Toolkit
    $74.95
    Buy
    • Come teardown time, there's no hiding from our ProTech Toolkit—not in a box, and not with a fox. We do rather like this foxy red box, though.

    • But before we start tooling around—let's compare! At left: the Galaxy Watch3, with its rotating dial wheel and tactile buttons. And at right: the Huawei Watch GT2e, with its electronic "rotating" touch-bezel and low-profile buttons (similar to the OnePlus Watch's).

    • Around back, the OnePlus Watch packs fairly standard equipment heart rate + SpO2 (blood oxygen saturation) sensors—no fancy ECG, like in the Galaxy Watch3 or Apple Watch Series 6.

  3. OnePlus Watch Teardown: step 3, image 1 of 3 OnePlus Watch Teardown: step 3, image 2 of 3 OnePlus Watch Teardown: step 3, image 3 of 3
    • Standard spring bar pins hold the fluoroelastomer straps in place, so we easily dispatch those, along with four Torx screws on the back of the watch.

    • Our first peek inside reveals a back cover carrying a Li-ion battery and a few other notable travelers.

    • A single metal bracket covers the hidden cable connectors, which we'll remove to get a closer view.

  4. OnePlus Watch Teardown: step 4, image 1 of 3 OnePlus Watch Teardown: step 4, image 2 of 3 OnePlus Watch Teardown: step 4, image 3 of 3
    • All together, this back cover is home to a tiny speaker and linear actuator, a microphone, a barometric sensor, and the heart rate and SpO2 sensors. Most of those parts live on the same flex cable octopus, which is not removable.

    • The only replaceable part in the bunch is the loudspeaker—if you trust the reading on the other side of the "not removable" battery. Which... we don't. It seemed perfectly removable to us!

    • The power cell delivers 1.59 Wh (410 mAh @ 3.87 V). That puts it above the Galaxy Watch3 (1.3 Wh) and the Apple Watch Series 6 44 mm (1.17 Wh). Only the Xiaomi Mi Watch from 2021 provides more juice with 1.62 Wh.

    • What’s that, a TÜV sign on a battery? We don't recall seeing this in any other smartwatch. But it’s not uncommon to see certification from TÜV for mobile electronics.

  5. OnePlus Watch Teardown: step 5, image 1 of 3 OnePlus Watch Teardown: step 5, image 2 of 3 OnePlus Watch Teardown: step 5, image 3 of 3
    • Moving on—only a few Phillips screws hold the motherboard in place, which does not seem to have anything mounted on this side.

    • So let’s pop off those remaining display and button connectors, and then go for the brainnnnnnnns.

  6. OnePlus Watch Teardown: step 6, image 1 of 3 OnePlus Watch Teardown: step 6, image 2 of 3 OnePlus Watch Teardown: step 6, image 3 of 3
  7. OnePlus Watch Teardown: step 7, image 1 of 2 OnePlus Watch Teardown: step 7, image 2 of 2
    • Chips, continued:

    • Texas Instruments BQ25618 1.5 A li-ion battery charger

    • CellWise CW2015 Battery Fuel Gauge

    • Cirrus Logic CS47L15 audio codec

    • Awinic AW8896CSR class-D audio amplifier

    • STMicroelectronics LSM6DSOX 3-axis accelerometer/gyroscope

    • Geomagnetic Sensor (likely)

  8. OnePlus Watch Teardown: step 8, image 1 of 3 OnePlus Watch Teardown: step 8, image 2 of 3 OnePlus Watch Teardown: step 8, image 3 of 3
    Tool used on this step:
    iFlex Opening Tool
    $11.99
    Buy
    • With the motherboard out and this intricate button liner removed, we focus on the last part—the screen.

    • We apply some heat and flex our cutting skills until we can finally slice that show-off… off.

    • This screen offers a resolution of 454 × 454 pixels, which results in a density of 326 ppi across its 1.39 inches. And although the thin lines in the dark ring around the display might suggest some sort of digital rotating bezel, there is no such function.

  9. OnePlus Watch Teardown: step 9, image 1 of 1
    • With that, our teardown is over. Where did the time go? We seem to have lost track.

    • Please feel free to admire this timepiece's pieces. And while we work on reassembling it, here are some repairability observations for you to ponder.

  10. Final Thoughts
    • The opening procedure is straightforward and glueless.
    • Only two common screw types are used throughout the watch.
    • Some finicky metal brackets and a few overlapping cables complicate repairs.
    • The battery itself is easily accessible, but connects to the motherboard via the sensor flex assembly.
    • The sensor flex assembly is non-removable and fixed to the back cover.
    • The display is difficult to remove and requires heat and special prying tools.
    Repairability Score
    5
    Repairability 5 out of 10
    (10 is easiest to repair)

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