notification icon To give you the best possible experience, this site uses cookies. Continuing to use means you agree to our use of cookies.

See our cookie policy for more information.

FITBIT Flex Activity and Sleep Wristband - Red
Click on the image to Zoom View main image
  • Tracks steps / distance / calories
  • Monitors sleep
  • Works with Fitbit app
  • Wireless syncing via Bluetooth and NFC
  • Rechargeable battery
Product Code: 145526
Save €40.00
Was €89.99
Out of stock

Sorry, this item is currently out of stock
Check back soon, or ask instore for details.

  • Product DetailsBack to top
  • Monitor your activity, sleep and general fitness with the Fitbit Flex Activity and Sleep Wristband. This smart black wristband boasts a whole host of clever technology that helps you to accurately monitor your activity throughout the day and night.

    Activity tracking made easy

    With the Fitbit Flex on your wrist, you will be able to monitor every moment of your day without effort. It records your steps, distance, number of active minutes and how many calories you've burned so you'll be able to track your fitness on a daily basis using the sensitive MEMS 3-axis accelerometer to accurately record your data.

    Each of the lights on the device represent 20% of your daily goal, so you can see your progress at a glance. You can choose between steps, calories or distance.

    The battery lasts up to approximately five days, so you can get plenty done before you'll need to recharge the device.

    Taking measurements while you're taking a snooze

    The Flex also helps you to monitor your sleep quality using the highly sensitive sensor. By wearing it at night it can monitor the quality of your sleep, so you can simply check on the app to see how long you slept and how many times you awoke during the night.

    This activity and sleep monitor can also help to wake you thanks to the internal vibration motor. When you set an alarm using the app, it will wake you with a silent alarm that can leave your partner to snooze in peace.

    Unbeatable design

    The Fitbit FB401-RD Flex is easy to wear on your wrist, so it won't disturb your daily activities and is water-resistant so you don't need to worry about protecting it.

    You can also change it to suit your style thanks to the range of coloured bands (sold separately).

    App-solutely brilliant

    You will be able to sync your Flex to your free Fitbit account to make the most of your activity tracking. The dashboard allows you to track your water consumption, weight and body mass by inputting your daily totals, and you can view graphs and charts of your daily activity, including your sleep. You'll also be able to track your calorie consumption and log your workouts.

    You'll be able to compete with friends using Fitbit, keeping you up to date with daily and weekly totals, and you can see how you've fared in the weekly stats email.

    You'll also earn badges for your daily, weekly and lifetime achievements, and you'll get achievements alerts sent to you to let you know when you've reached your goal.

    Your Fitbit Flex is also compatible with a number of other fitness apps, including My Fitness Pal and Endomondo, so you can combine data for a better view of your overall fitness.

    Wireless syncing

    It is simple to sync your device thanks to the Bluetooth technology. When you use the wireless sync dongle, your Flex will automatically connect to your PC or Mac when you are within 20 ft. It is also compatible with iOS devices and selected Android devices.

    It is also NFC-enabled, so you can use it with your NFC enabled Android device. Simply tap your device to launch the app to view your stats.

    Monitor your fitness and set your goals when you use the Fitbit Flex Activity and Sleep Wristband.
  • Technical InformationBack to top
    Activity tracker  
    LED indicator lights x 5  

    -Bluetooth 4.0
    Internal memory
    Up to 7 days of minute-by-minute data  
    Water resistant
    -up to 10 m
    App available
    App compatibility

    Other compatible apps
    Compatible with a range of apps including:
    -Lose It!
    -Map My Fitness
    -My Fitness Pal
    -Run Keeper
    -Spark People

    -Bluetooth 4.0
    Heart-rate monitor
    Calorie monitor

    -Calories burned
    -Quality of sleep

    -Active minutes
    -Calories burned
    -Distance traveled
    -Hours slept
    -Quality of sleep
    -Steps taken
    Other features

    -Sensitive MEMS 3-axis accelerometer
    -Vibration motor
    Battery type
    Lithium-polymer battery  
    Rechargeable battery
    Battery life
    Up to 5 days  
    Box contents

    -Fitbit Flex Activity and Sleep Wristband
    -Flex band, large
    -Flex band, small
    -Wireless dongle
    -Charging cable
    222 mm x 60 x 60 (L x W x D)  
    29 g  
    Manufacturer's guarantee
    1 year  
  • Customer ReviewBack to top
  • Sorry, there are no reviews yet.

  • Delivery Charges & ServicesBack to top

  • Delivery charge summary  

    Item type

    Delivery charge

    Delivery timeline

    Small items (such as sat navs, cameras, laptops etc.)

    €4.99 for entire order

    3-5 working days

    Large items (such as large TV, washing machines etc.)

    €19.99 for entire order

    Up to 5 working days


    Small items delivery

    ·       Small items – such as cameras, TVs under 39-inches, printers, software, data storage, tablets and laptops – are delivered by our courier partner, DPD.

    ·       DPD’s standard delivery times are between 9am and 6pm, Monday to Friday, excluding bank holidays.

    ·       We aim to have all items delivered within 3-5 working days, however, please allow 4-7 days for extended bank holiday periods such as Easter and Christmas.

    ·       For security reasons we do not deliver to Parcel Motels. 

    ·       Please note:  DPD are not authorised to collect your old products for WEEE recycling. However, simply visit your local Currys PC World store with your old product and a valid receipt and a member of staff will be happy to assist you.

    ·       Track your order: For small items please visit DPD’s website and track your order using your unique tracking code specified in your confirmation email.

    Large items delivery

    ·       Large products – such as TVs above 39-inches, washing machines and fridge freezers – are delivered by our KNOWHOW delivery team.  

    ·       KNOWHOW delivers five days a week – Tuesday to Saturday – between 8am and 6pm, anywhere in the Republic of Ireland with the exception of Donegal – where we deliver once a week – and island locations. 

    ·       The evening before your delivery is scheduled, a member of our KNOWHOW team will call you between 3pm and 6pm to advise you of your delivery time window. 

    ·       On the day of delivery our KNOWHOW driver will call you at least 30 minutes before arriving at the delivery address to give you an estimated time of arrival.  

    ·       Once we arrive at the delivery address, we will unbox your items and remove all packaging for recycling. We can also remove your old appliances for WEEE recycling free of charge.

    ·       If you would like us to install and demo your new appliance, our KNOWHOW installers can do this for a small fee.

    ·       Track your order: For large items, you can track your delivery through the KNOWHOW Track It portal. Simply insert your unique tracking code, specified in your confirmation email or instore receipt, and your telephone number.


    Product availability

    ·       Occasionally, we may offer the option of ordering an item in advance if it’s out of stock at the time but more stock is on its way. We will let you know in advance the date of expected delivery if this is the case.

    ·       Please note, if you purchase two or more products at the same time, the items may have different availabilities and methods of delivery, in which case you may receive your items separately.

    VAT and delays

    ·       Please be aware that we cannot offer VAT refunds to overseas customers ordering goods to be delivered to an Irish address. 

    ·       We always try to ensure that orders arrive on time, however sometimes delays occur during peak period, i.e. Christmas and Easter. If we become aware of any unexpected delays with your order we will let you know.


© DSG Retail Ireland Ltd, Unit 9A, The Park, Carrickmines, Dublin 18, Ireland
Incorporated in Ireland, a private company with issued shares. Registration Number 259460