Product features

  • Built in GPS
  • Tracks steps, distance, calories and sleep
  • Water resistant up to 50m

Product description

Water-resistant tracker that is packed with features that helps guide and track your workouts.

The Fitbit Charge 4 has been specially designed to help push your limits to their absolute maximum. The sleek design has been made with fitness in mind, the Charge 4 is lightweight, comfortable and waterproof up to 50m. By monitoring your activities the Charge 4 helps you to get a clearer picture of your health and fitness, giving you all the information you need to hit your fitness goals.

With Automatic tracking, the Charge 4 detects what type of exercise you're doing so you can focus on getting a great workout. Daily sleep scores are provided when you wake up that track your light, deep and REM sleep stages giving you an accurate view of how well you have slept and tips to improve your sleeping routine.

Health & fitness: The Charge 4 comes with multiple ways to track your health and activities, with its 24/7 heart rate tracking you can keep a better log of calories burned as well as resting heart rates throughout your day. With real time pace and distance and all-day tracking , this unique fitness tracker tracks steps, distance, activity minutes, hours active and stationary time so you can get a full view of your days workouts.

Sleep tracking & score: Better understand your sleeping patterns with the automatic sleep tracking and silent alarms that provides you with detailed information on how long you have spent in light, deep and REM sleep and then gives you insights on how to improve your sleep.

Oxygen Saturation (SpO2) monitoring: The level of oxygen in your blood is a good indication of important changes in your fitness and wellness. This app tracks your Sp02 during the day and night and then creates a log showing you your weekly trends.

Features of Fitbit Charge 4

  • Daily sleep stages & sleep scores
  • 24/7 heart rate tracking
  • Personalised reminder function
  • Tracks steps, distance, calories burned, active minutes, hourly activity and stationary time
  • 20+ goal based exercise modes
  • Guided breathing sessions
  • Daily sleep scores with light, deep and REM patterns tracked
  • Reminds you to get active
  • Skin temperature measurements
  • Menstrual health tracking
  • Oxygen saturation (Sp02) monitoring
  • Real time pace and distance tracking
  • Specifications

    Sensors & Components
    • 3-axis accelerometer
    • Optical heart rate monitor
    • Red and infrared sensors for oxygen saturation (SpO2) monitoring
    • Device temperature sensor (skin temperature variation available in the Fitbit app)
    • Vibration motor
    • NFC
    • Altimeter
      • 25.5mm Greyscale Backlit OLED display
      • 100 x 160 px
      • Touchscreen
      Battery & Power
      • Battery life: Up to 7 days
      • Battery type: Lithium-polymer
      • Charge time (0-100%): Two hours
      • Radio transceiver: Bluetooth® 4.0
      • Saves 7 days of detailed motion and heart rate data, minute by minute
      • Saves daily totals for past 30 days
      • Measures heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times
      Water resistance
      • Water resistant to 50 meters.
      • After swimming or getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. We do not recommend wearing Fitbit Charge 4™ in a hot tub or sauna. Learn more.
      • This tracker includes a plastic resin case and the band includes a stainless steel buckle. The classic band is made of a flexible, durable material similar to that used in many sports watches. The woven band is made from a comfortable polyester.
      Environmental Requirements
      • Operating temperature: -20° C to 60° C
      • Maximum operating altitude: 28,000 ft
      • Syncing range: Up to 30 feet
        Certain features like smartphone notifications may require Android 7.0+.
      • Syncing to mobile devices requires Bluetooth LE and internet connection.
      • Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later.
      • Music control via Bluetooth LE on Android and iOS devices.
      Watch size
      • Small: Fits wrist 140 mm - 180 mm in circumference
      • Large: Fits wrist 180 mm - 220 mm in circumference
      • Watch screen size: 25.5mm
      • 35.8mm x 22.7mm x 12.5mm
    • What's included

      • Fitbit Charge 4
      • Classic wristbands (both small & large)
      • Charging cable
    • Suitable for

      • Adults
    • Warnings and cautions

      • Do not disassemble, puncture or damage the device or battery
      • Do not remove or try to remove the battery that the user cannot replace
      • Do not expose the battery to flames, explosions or other hazards
      • Do not use sharp objects to remove the battery
    • Materials

      This tracker includes a plastic resin case and the band includes a stainless steel buckle. The classic band is made of a flexible, durable material similar to that used in many sports watches. The woven band is made from a comfortable polyester.

      Our products may contain trace amounts of acrylates and methacrylates from adhesives used in those products but we work to ensure our products adhere to rigorous design specifications and meet extensive test requirements so as to minimum the potential for reaction to these adhesives.

    • Delivery and returns

      Click & Collect

      • Free on all orders over £20
      • £1.50 on orders up to £20
      • Delivered in 4-6 working days if ordered before 6pm Monday - 6pm Thursday
      • Delivered the following working Thursday if ordered after 6pm Thursday - 6pm Monday

      *Please note: If your chosen pharmacy is in the North West, North East, Yorkshire, the Isle of Man, Channel Islands or Scottish Highlands and Islands your order will take an additional working day to these delivery times. To find out if your pharmacy is impacted click here.

      Standard delivery

      • Free on orders over £35
      • £3.49 for orders up to £35
      • Delivered in 4-6 working days

      Express delivery

      • £4.99
      • Delivered Next Day if ordered before 8pm Monday to Friday
      • Delivered Monday if ordered after 8pm Friday - 12pm Sunday
      • Delivered Tuesday if ordered after 12pm on Sunday
      • Not available in the Channel Islands

      Pharmacy Medicines delivery

      Pharmacy Medicines will need to be signed for by someone aged 18 or over. If there isn't anyone in who can sign for your order, you can change your delivery date or redirect it to a local parcel shop using the courier's website or app.

      Unfortunately, your order can't be left in a safe place or with a neighbour. The courier will try to deliver three times before they return it to us.

      Purchasing in bulk/high unit volume

      Please note that when purchasing high unit volumes of single lines (10+ units) that delivery promotions are null and void.
      This is as a result of high volume orders not being able to be dispatched via our normal third party fulfilment.
      As a result for any excessive bulk orders of single lines we will be in touch regarding your order to discuss further delivery costs that will be incurred.


      If you're not completely satisfied with your order, you can return it to us within 28 days
      Find out more about our returns policy click here