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    Garmin Instinct 3 45 mm

    Smartwatch
    Attachment system
    QuickFit 22

    The Garmin Instinct 3 (45 mm) takes its own 22 mm Instinct 3 bands on a watch pin, or Garmin QuickFit 22 bands once a compatible watch pin is fitted.

    ✓ Matches the manufacturer's specifications
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    Strap and attachment

    Lug width
    22 mm
    Attachment type
    Proprietary connector
    Attachment system
    Instinct 3 band with watch pin; Garmin QuickFit 22 compatible via a compatible watch pin
    Compatible bands
    Garmin Instinct 3 45 mm 22 mm bands (watch pin), or QuickFit 22 bands after fitting a compatible watch pin

    The watch

    Brand
    Garmin
    Collection
    Instinct
    Model
    Instinct 3 45 mm
    Version
    45 mm (AMOLED and Solar); 50 mm = QuickFit 26
    Type
    Smartwatch
    Case size
    45 mm

    Story

    History

    Garmin launched the original Instinct on 11 October 2018 as a rugged outdoor GPS watch. It was built to the MIL-STD-810G military standard and water-rated to 100 m.

    The Instinct 2 followed on 9 February 2022 with a 45 mm case, plus a smaller 40 mm Instinct 2S.

    The Instinct 3 series (January 2025) added an AMOLED option for the first time in the line. It came in AMOLED and Solar versions, each in 45 mm and 50 mm, and every model has a built-in flashlight.

    What it brought to the industry

    Some 45 mm Instinct 2 Solar models offered unlimited battery life in smartwatch mode, with about 3 hours a day in sunlight. Garmin called this a new battery life standard for the brand.

    Other versions

    ReferenceWhat is differentStrap size
    Instinct 3 AMOLED 50 mmInstinct 3 AMOLED 50 mmLarger 50 mm case with an AMOLED displayNot verified
    Instinct 3 Solar 45 mm / 50 mmInstinct 3 SolarSolar-charging display instead of AMOLED. The 50 mm gets more than five times the GPS battery life of the Instinct 2 Solar when solar chargingNot verified
    Instinct 2Instinct 2Previous generation (2022), 45 mm, with Solar and non-solar modelsNot verified
    Instinct 2SInstinct 2SPrevious generation, smaller 40 mm caseNot verified
    Instinct (2018)InstinctFirst generation, with a fibre-reinforced polymer case and MIL-STD-810G ratingNot verified

    Questions

    How does the strap attach on the Garmin Instinct 3 45 mm?

    Proprietary connector. System: Instinct 3 band with watch pin.

    Which bands fit the Garmin Instinct 3 45 mm?

    Garmin Instinct 3 45 mm 22 mm bands (watch pin), or QuickFit 22 bands after fitting a compatible watch pin

    More from Garmin

    All Garmin lug widths

    Help

    What is lug width?

    The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

    Measure it in 30 seconds

    1. Take the strap off, or look at the back of it: many straps print their width.
    2. Measure the inside gap between the lugs with a caliper or a millimetre ruler.
    3. Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

    Strap, quick release or system?

    Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.

    Where this comes from

    Garmin, Garmin Newsroom, Garmin Singapore.