Refurbished Fitbit Smart Watch

Name: Refurbished Fitbit Smart Watch
Brand: Back Market
Price: 149 GBP
Availability: InStock
Rating: 4.18 (344 reviews)

The refurbished Fitbit Smart Watch delivers integrated fitness tracking and proper health insights. Get continuous heart-rate monitoring, active minutes tracking, and sleep analysis. Your wellness journey just got a whole lot smarter....

Compare devices

7 products

Trade in to get it for less

Today’s purchase could set you back a lot less when you trade in an old device at the same time.

Fitbit Sense 2 Bluetooth 40 mm - Black

(4)

Starting at

Refurbished price:£149.00

Versus £299.99 new

Fitbit Charge 5 Bluetooth 38 mm - Blue

(3)

Starting at

Refurbished price:£71.00

Versus £129.99 new

Fitbit Bluetooth 38 mm - Gold

(3)

Starting at

Refurbished price:£98.00

Versus £139.00 new

Fitbit Bluetooth 38 mm - Black

Starting at

Refurbished price:£100.00

Versus £139.00 new

Fitbit Versa 4 Bluetooth 40 mm - Pink

(8)

Starting at

Refurbished price:£110.00

Versus £211.06 new

Fitbit Sense 2 Bluetooth 40 mm - Gold

(4)

Starting at

Refurbished price:£149.00

Versus £269.99 new

Fitbit Sense 2 Bluetooth 40 mm - Grey

(1)

Starting at

Refurbished price:£260.00

Versus £269.99 new

General

I swapped my smartphone for a dumbphone for a week and was surprised by the result | Back Market

Writer and self-confessed phone addict Rhys Thomas ditches his iPhone 15 for a Nokia 2660 Flip dumbphone in the ultimate modern-day experiment. Read his story.

Customer reviews for Refurbished Fitbit Smart Watch

Overall rating

344 verified reviews

Rating details

Shipping
4.5/5
Packaging
4.4/5
Overall performance
4/5
Appearance
4.2/5

Reviews

Fran M.
Verified purchase
Reviewed 26/04/2026, United Kingdom.
The first one delivered wouldn’t connect so I asked for a replacement. No problem it was delivered within 2 days. Connected and not been off my wrist since. Great product and customer service. I buy from your company often and will continue as very affordable tech and saving the planet. Very pleased with the item.
Smart Watch Fitbit HR GPS Sense - Black
Smart Watch Fitbit HR GPS Sense - Black
See item
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
15/04/2026
Kimberley M.
Verified purchase
Reviewed 01/04/2026, United Kingdom.
Received it basically in new condition. It has worked flawlessly and saves me nearly £80, the charge 6 is my first fitbit so I can't compare the value against the other models, however I haven't had any issues or complaints with it.
Smart Watch HR Fitbit Charge 6 - Silver
Smart Watch HR Fitbit Charge 6 - Silver
See item
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
20/03/2026
Antony R.
Verified purchase
Reviewed 14/04/2024, United Kingdom.
My old Fitbit Blaze gave up so bought this Versa 3 refurbished and it’s perfect for me, I only need the basic functions from a smartwatch and this fits the bill perfectly, arrived on time and condition is excellent, well done Back Market
Smart Watch Fitbit HR GPS Versa 3 - Black
Smart Watch Fitbit HR GPS Versa 3 - Black
See item
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
31/03/2024
Jason O.
Verified purchase
Reviewed 14/07/2025, United Kingdom.
the watch is for my mother who suffers occasional Atrial fibrillation. so far it is monitoring her heart and will be useful to show the doctors. no complaints 👌
Fitbit Sense 2 Bluetooth 40 mm - Black
Fitbit Sense 2 Bluetooth 40 mm - Black
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
03/07/2025
Tracey P.
Verified purchase
Reviewed 21/06/2026, United Kingdom.
Excellen
Smart Watch GPS Fitbit Versa 4 Fitness - Blue
Smart Watch GPS Fitbit Versa 4 Fitness - Blue
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
06/06/2026
Bethan H.
Verified purchase
Reviewed 17/11/2024, United Kingdom.
The condition was great. This was my second time trying to buy a secondhand Fitbit. The first from a different vender didn't go so well, so I was pleased that back market had assurances of the watch being unlocked and guaranteed. Really happy with the purchase.
Fitbit Sense 2 Bluetooth 40 mm - Gold
Fitbit Sense 2 Bluetooth 40 mm - Gold
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
02/11/2024
Anna S.
Verified purchase
Reviewed 17/12/2025, United Kingdom.
I've had this for about a month now and it has been working fine. It has a good battery life (if you just use it as a watch it lasts several days, less obviously if you track a run with GPS). No issues syncing with my phone (also bought on here). It was marked as "good" condition but looks brand new. Only slight problem is that it appears Fitbits have different strap lengths and the one it came with is too long. But I still have the one from my old Fitbit (which died) so just using that. Very pleased.
Smart Watch Fitbit GPS Charge 5 - Blue
Smart Watch Fitbit GPS Charge 5 - Blue
See item
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
17/11/2025
Egils G.
Verified purchase
Reviewed 29/09/2025, United Kingdom.
Great device. Looks and feels like brand new!
Smart Watch Fitbit GPS Versa 4 - Black
Smart Watch Fitbit GPS Versa 4 - Black
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
16/09/2025
Helen J.
Verified purchase
Reviewed 19/06/2025, United Kingdom.
Bought a fit bit vests 2 at a quarter of its price new. Very happy with the face of it Only a few scuffs around of the outside of the face. Nothing that affects the screen. Getting used to all the features. Doesn’t seem to connect to email which is a shame, but I don’t think this version supports that, my bad. Supplied with new strap and charger. Charge only lasts about 2-3 days though. Happy with purchase and would definitely use Back Market again. Clear update emails on order and arrive 2 days earlier than specified.
Smart Watch Fitbit HR Versa 2 - Pink
Smart Watch Fitbit HR Versa 2 - Pink
See item
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
04/06/2025
Michelle W.
Verified purchase
Reviewed 15/05/2025, United Kingdom.
Excellent watch came with charger , packed great no damage to box or item …. Very pleased I purchased an iPhone 14 around 4months ago and still going great no problems whatsoever….. will continue to buy off here for any future devices , excellent site and service ⭐️⭐️⭐️⭐️⭐️
Smart Watch Fitbit HR GPS Sense - White
Smart Watch Fitbit HR GPS Sense - White
See item
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
09/05/2025

Read our guides

Our recent comparisons

Comparison
HP EliteBook 840 G8 14" vs Lenovo ThinkPad T480 14" comparison

Searches so popular you can't sit with them

Apple Watch Ultra DJI Drone AirTag Accessories Garmin Watches Apple Watch series 9 Amazfit Baby monitors Apple Watch Series 3 Apple Watch Series 8

The Fitbit smartwatch range brings comprehensive health tracking and fitness insights to your wrist with Google's trusted wellness platform. Choosing a refurbished Fitbit smartwatch means accessing advanced health metrics and community motivation whilst making a more sustainable choice. Find the smartwatch that turns daily activity into actionable health insights.

What are the key features of Fitbit Smartwatches?

AMOLED displays: bright, vibrant screens with always-on options for quick glances
Advanced health tracking: continuous heart rate monitoring, ECG, SpO2, and skin temperature sensors
Active Zone Minutes: personalised intensity tracking that adapts to your fitness level
Built-in GPS: accurate route tracking for outdoor runs, cycling, and walks
Sleep tracking: detailed sleep stages analysis with Sleep Score and personalised insights
Stress management: EDA sensor and guided breathing sessions for mindfulness
Water resistant to 50m: suitable for swimming with automatic swim tracking
Google integration: Google Maps, Google Wallet, and Google Assistant on select models
Compatible with Android and iOS: works with Android 9.0+ and iOS 15+ via Fitbit app
Fitbit Premium: optional subscription for advanced insights, guided programmes, and mindfulness content

What are the differences between a refurbished and a used Fitbit Smartwatch?

A used smartwatch is resold without professional inspection or guaranteed functionality. By contrast, a refurbished Fitbit smartwatch from Back Market has been thoroughly tested by trusted refurbishers according to our Quality Charter. Each watch undergoes comprehensive checks covering the display, buttons, health sensors, GPS accuracy, haptic feedback, and water resistance seals.

All our products come with a minimum 12-month warranty and a 30-day return period. You receive reliable technology that integrates seamlessly into your daily routine whilst reducing electronic waste. Choosing refurbished means accessing Fitbit's health ecosystem with confidence and peace of mind.

Who are Fitbit Smartwatches best for?

Fitbit smartwatches suit users seeking comprehensive health insights and community motivation:

Health-focused individuals: detailed metrics for heart health, sleep quality, and stress management appeal to those prioritising wellness
Fitness enthusiasts: Active Zone Minutes and personalised intensity tracking help optimise workout effectiveness
Former Fitbit users: seamless transition from Fitbit trackers to full smartwatch functionality whilst keeping historical data
Multi-platform users: strong compatibility with both Android and iOS offers flexibility across ecosystems
Community-motivated exercisers: Fitbit's social features, challenges, and leaderboards provide accountability and encouragement

Which Fitbit smartwatch should you choose?

Fitbit's smartwatch lineup offers models at different capability levels since Google's acquisition. The Fitbit Versa series provides balanced smartwatch features with comprehensive health tracking, built-in GPS, music storage, and Amazon Alexa integration. The Versa 4 delivers core fitness and health metrics with improved heart rate accuracy and Active Zone Minutes tracking, suitable for everyday users wanting reliable tracking without excessive complexity.

The Fitbit Sense series targets health-conscious users with advanced sensors including ECG, EDA (electrodermal activity) for stress tracking, and skin temperature monitoring. The Sense 2 offers the most comprehensive health insights in Fitbit's range, ideal for users wanting detailed cardiovascular and stress management data. Both Sense models include all Versa features plus these additional health sensors.

The Google Pixel Watch (which uses Fitbit's health platform) represents Google's premium smartwatch offering, combining Wear OS functionality with Fitbit health tracking. It suits users wanting deeper Google ecosystem integration alongside Fitbit's wellness features. If you prioritise health insights and stress management, the Sense series justifies its positioning. For balanced everyday tracking with smartwatch conveniences, the Versa series offers excellent value. Those invested in Google services should consider the Pixel Watch for unified ecosystem integration.

Buy a refurbished Fitbit Smartwatch at the best price on Back Market

Back Market offers refurbished Fitbit smartwatches at competitive prices without sacrificing quality. Each watch is tested and verified by trusted refurbishers, complete with a minimum 12-month warranty. You'll benefit from excellent value on Google's wellness platform whilst supporting a more circular economy.

Our professional refurbishers conduct rigorous quality checks, examining everything from display quality to sensor accuracy and haptic response. Choose from different cosmetic grades (Pristine, Excellent, Good) depending on your budget and aesthetic preferences. With fast delivery, secure payment, and responsive customer service, buying refurbished Fitbit technology has never been more straightforward.

What are Active Zone Minutes on Fitbit Smartwatches?

Active Zone Minutes is Fitbit's personalised activity metric that measures time spent in different heart rate zones during exercise. Instead of simply counting steps or exercise duration, Active Zone Minutes awards credit based on exercise intensity relative to your personal fitness level. You earn one minute for moderate activity and double minutes for vigorous activity. The WHO recommends 150 Active Zone Minutes per week for optimal health. This metric adapts as your fitness improves, ensuring your goals remain challenging yet achievable. It's particularly useful for tracking different types of exercise—a gentle walk and intense run both contribute meaningfully based on their intensity for your fitness level.

Do Fitbit Smartwatches work with iPhone?

Yes, Fitbit smartwatches are compatible with iPhones running iOS 15 or later through the Fitbit app. You can receive notifications, track workouts, monitor health metrics, sync data, and access Fitbit Premium content on your iPhone. The core Fitbit experience works well with iOS, including health tracking, sleep analysis, and Active Zone Minutes. However, some features may be limited compared to Android pairing, such as quick reply options for notifications (Android only) and certain third-party app integrations. Google Assistant and Google Wallet functionality on newer models also works with iOS. Overall, iPhone users get a robust Fitbit experience with only minor limitations.

What is the EDA sensor on Fitbit Sense smartwatches?

The EDA (electrodermal activity) sensor on Fitbit Sense watches measures tiny electrical changes on your skin that indicate stress responses. To use it, place your palm over the watch face for a guided session. The sensor detects variations in sweat gland activity, which correlates with your body's stress response. After each session, the watch provides an EDA Scan score showing how many EDA responses were detected—fewer responses generally indicate a calmer state. Combined with mood logging and mindfulness exercises, this helps you understand your stress patterns and practice stress management techniques. It's particularly useful for identifying how different activities, times of day, or situations affect your stress levels.

Can you track swimming with Fitbit Smartwatches?

Yes, Fitbit smartwatches are water-resistant to 50 metres (5ATM rating) and include dedicated swimming modes. The watches automatically track pool swimming, monitoring laps, duration, and calories burned. Some models also support open water swimming tracking using GPS. After swimming, especially in chlorinated or salt water, rinse the watch thoroughly with fresh water and dry it carefully. Pay particular attention to the charging contacts and sensors to maintain optimal performance. Whilst the watches handle swimming and showering reliably, they're not designed for high-pressure water activities like diving, water skiing, or hot water bathing.

Are refurbished Fitbit Smartwatches covered by warranty?

Yes, all refurbished Fitbit smartwatches on Back Market come with a minimum 12-month warranty. This warranty covers functional defects in essential components including the display, buttons, heart rate monitor, ECG sensor (where applicable), EDA sensor (on Sense models), GPS, SpO2 sensor, haptic motor, and water resistance seals. You also benefit from a 30-day return period if the watch doesn't meet your expectations. Our customer service team is available to assist with any questions about your refurbished Fitbit smartwatch.

Choose location

Suggested searches

Popular searches

Refurbished Fitbit Smart Watch

Trade in to get it for less

Fitbit Sense 2 Bluetooth 40 mm - Black

Fitbit Charge 5 Bluetooth 38 mm - Blue

Fitbit Bluetooth 38 mm - Gold

Fitbit Bluetooth 38 mm - Black

Fitbit Versa 4 Bluetooth 40 mm - Pink

Fitbit Sense 2 Bluetooth 40 mm - Gold

Fitbit Sense 2 Bluetooth 40 mm - Grey

I swapped my smartphone for a dumbphone for a week and was surprised by the result | Back Market

Reviews

Reviews

Fran M.

Kimberley M.

Antony R.

Jason O.

Tracey P.

Bethan H.

Anna S.

Egils G.

Helen J.

Michelle W.

Read our guides

Some proof that refurbished electronics reduce the negative impact of tech on the planet | Back Market

Buying your teen's first phone? Here’s how to keep them safe | Back Market

Childhood is too short to be spent on a smartphone | Back Market

New vs. Refurbished: The Environmental Impact of the Tech Industry | Back Market

The Home Office Guide | Back Market

Best Smartwatches: Apple vs Garmin vs Fitbit | Back Market

Our recent comparisons

HP EliteBook 840 G8 14" vs Lenovo ThinkPad T480 14" comparison