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    Fitbit Charge band sizes

    Smartwatch line4 references

    Band systems by model

    Fitbit Charge: the band size or band system of each model, with 4 references listed.

    Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size. Report an error

    4 Fitbit Charge references

    FAQ

    Which bands fit the Fitbit Charge?

    It depends on the generation and case size. Charge 6: Charge bands.

    Do Charge 3 or Charge 4 bands fit the Charge 5 or Charge 6?

    No. The Charge 5 introduced new pins and a new proprietary band system, so Charge 3 and Charge 4 bands do not fit. Google gives separate band instructions for Charge 2 to 4 and for Charge 5 and 6.

    What sizes do the Charge 2 bands come in?

    Three: small fits 5.5 to 6.7 inch wrists, large 6.7 to 8.1 inches and extra large 8.1 to 9.3 inches. Fitbit notes accessory bands may vary slightly.

    How do I remove and attach a Charge 5 or Charge 6 band?

    Turn the tracker over, press the flat latch button toward the band with a fingernail and pull the band away. To attach, press the band into the tracker until it clicks; the buckle band goes on top.

    Will my Charge 6 bands fit the Fitbit Edge?

    No. The Edge uses an all-new snap-in band mechanism, so previous Fitbit and Pixel Watch bands cannot be reused.

    The story of the Fitbit Charge

    The Charge arrived the year Fitbit recalled its previous band, the Force, after 9,900 reports of skin irritation. Its heart-rate sibling, the Charge HR, was the best-selling fitness tracker in the US from April to September 2015.

    79%share of Fitbit revenue from the Charge, Charge HR and Surge in Q3 2015
    150 minutesweekly Active Zone Minutes goal introduced with the Charge 4
    20%weight saved by the aluminium Charge 3 over the steel Charge 2
    9.3 incheslargest wrist covered by the Charge 2's extra large band

    Chapters

    1. 2023 to 2026
      Google moves onto the wrist

      The Charge 6, open for pre-order from 28 September 2023, brought back a haptic button and added Google Maps and Google Wallet, plus heart rate streaming to Peloton and NordicTrack machines. When Google ended Fitbit smartwatches in 2024, the Charge was one of three Fitbit ranges it kept. In October 2026 its successor, long rumoured as the Charge 7, arrived under a new name: Fitbit Edge.

    2. 2021 to 2022
      Colour, and a heart check

      The Charge 5 launched in September 2021 at $179.95 with a colour AMOLED screen and no physical button. Its small colour screen and seven-day battery carried over unchanged to the next generation, which shows how settled the formula had become.

    3. 2020
      GPS on a band

      The Charge 4 arrived on 15 April 2020 at the same $149.95 and finally carried its own GPS, so runners could leave the phone at home. It introduced Active Zone Minutes, a heart-rate goal of 150 minutes a week, along with Fitbit Pay and Spotify controls.

    4. 2018 to 2019
      Lighter, and ready to swim

      Announced in August 2018, the Charge 3 traded stainless steel for aluminium, about 20% lighter, and gained a touchscreen 40% larger than before. It was waterproof enough to track pool swims. Its SpO2 sensor was non-functional at launch, and Fitbit gave no timeline for enabling it.

    5. 2016 to 2017
      Breathe, then change the band

      The Charge 2 reached stores worldwide on 26 September 2016 at $149.95, built to succeed what Fitbit called its best-selling wristband. It estimated cardio fitness from VO2 max, guided two or five minute breathing sessions and let owners swap bands and clock faces. It ranked number one on Amazon.com in fitness and heart rate monitor categories.

    6. 2014 to 2015
      Out of a recall

      The first Charge counted steps, floors and sleep and showed caller ID from a nearby phone. In early 2015 Fitbit added the Charge HR at $149.95, reading heart rate from the wrist at the cost of two days of battery. By the third quarter of 2015, the Charge, Charge HR and Surge together brought in 79% of Fitbit's revenue.

    Worn by

    Queen CamillaHistory2021

    Photographed from 2020 to 2022 with a rose gold Fitbit Charge on a grey band, including at the Commonwealth Day service in Westminster Abbey in March 2022. Hello! and Fit&Well identified it as a Charge 3 from photos.

    Will SmithScreen2021

    While rebuilding his fitness in 2021, the actor used a Charge 4 to track calories, exercise and steps, before Fitbit signed him to lead workouts on its Premium service.

    Sara HallSport2017

    The US marathoner, sponsored by Fitbit, wore a Charge 2 on her Women's Running cover in 2017 and called it her go-to tracker when not running for pace.

    Moments

    2026. In 2026 Google gave the successor to the Charge 6 a new name, the Fitbit Edge, with a Pixel Watch style body and a 1.34-inch screen.

    2026. With the Fitbit Edge launch on 12 October 2026, Google said it was discontinuing the Charge line, leaving the 2023 Charge 6 as its last model.

    2024. After a firmware update released on 21 December 2023, more than 100 Charge 5 owners reported batteries draining in hours or dead trackers; it echoed a wave of complaints in July 2023. Google told the BBC the update was not the cause.

    2023. The Charge 6 could stream its heart rate to Peloton bikes, NordicTrack machines and Tonal, and Fitbit claimed its sensor was 60% more accurate than the Charge 5's.

    2016. At the Charge 2 launch, IDC counted Fitbit as holder of more than a quarter of the worldwide wearables market, with basic trackers growing nearly 49% in a year while smart wearables shrank.

    2015. NPD Group ranked the Charge HR the best-selling fitness tracker in the US from April to September 2015, ahead of rivals including Garmin.

    Generations and strap changes

    1. 2023
      Charge 6

      Announced September 28, 2023 with the Charge 5 form factor, a returning haptic button and a new heart rate sensor.

      Uses the same band connector as the Charge 5, so Charge 5 bands are fully compatible.

    2. 2021
      Charge 5

      Released in September 2021 with a 1.04 inch color display and built-in GPS.

    3. 2020
      Charge 4

      Almost identical in design to the Charge 3, with a plastic resin case instead of aluminium.

      Charge 3 bands fit the Charge 4.

    4. 2018
      Charge 3

      A redesigned, swim-proof tracker with an inductive button instead of a physical one; introduced in October 2018.

      Wareable says Charge 2 and Charge 3 bands are not interchangeable.

    5. 2016
      Charge 2

      Bigger display and slimmer design, plus continuous heart rate carried over from the Charge HR.

      First Charge with removable bands, released by squeezing two metal prongs under the band.

    6. 2014
      Fitbit Charge

      The first Charge band arrived about a year after the Flex, two years before the Charge 2.

    About Fitbit

    Founded in 2007 in San Francisco, California, United States.

    Ambassadors include Andrew Wiggins, Will Smith The Fitbit story

    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.