---
product_id: 69633012
title: "Fitbit Flex Wireless Activity + Sleep Wristband, Slate"
brand: "fitbit"
price: "€ 200.36"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fitbit"
url: https://www.desertcart.ie/products/69633012-fitbit-flex-wireless-activity-sleep-wristband-slate
store_origin: IE
region: Ireland
---

# 1 ATM water resistance Bluetooth 4.0 wireless sync 7-10 days battery life Fitbit Flex Wireless Activity + Sleep Wristband, Slate

**Brand:** fitbit
**Price:** € 200.36
**Availability:** ✅ In Stock

## Summary

> ⌚ Track smarter, live better — don’t just keep up, lead the pack!

## Quick Answers

- **What is this?** Fitbit Flex Wireless Activity + Sleep Wristband, Slate by fitbit
- **How much does it cost?** € 200.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/69633012-fitbit-flex-wireless-activity-sleep-wristband-slate)

## Best For

- fitbit enthusiasts

## Why This Product

- Trusted fitbit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Battery:** Up to 10 days of uninterrupted tracking on a single charge—stay powered through your goals.
- • **Silent Vibrating Alarm:** Wake up refreshed without disturbing your partner, starting every day on the right foot.
- • **Splash-Proof Durability:** Sweat, rain, and splash resistant to keep up with your busiest days without missing a beat.
- • **Seamless Wireless Syncing:** Effortlessly connect to 150+ iOS, Android & Windows devices within 20 feet for real-time updates.
- • **All-Day Activity & Sleep Tracking:** Monitor steps, distance, calories, active minutes, and sleep quality to optimize your lifestyle.

## Overview

The Fitbit Flex Wireless Activity + Sleep Wristband is a sleek, lightweight fitness tracker that wirelessly syncs with over 150 leading smartphones and computers via Bluetooth 4.0. It tracks your daily steps, distance, calories burned, active minutes, and sleep quality, providing a comprehensive view of your health. Water-resistant up to 1 ATM, it withstands sweat and splashes, while its lithium-polymer battery offers up to 7-10 days of use per charge. The device features a silent vibrating alarm and LED progress indicators, making it an essential companion for busy professionals committed to optimizing their wellness.

## Description

Make fitness a lifestyle with Fitbit Flex—a slim, stylish device that tracks all-day activity like steps, distance, calories burned and active minutes. See how every day stacks up with LEDs that light up like a scoreboard as you get closer to your goal. Then wear it at night to measure your sleep quality and wake with a silent, vibrating alarm. Day or night, Flex fits comfortably around your wrist, is water-resistant, and has a 5-day battery life. It also syncs to computers and 150+ leading smartphones, so you can access your stats anywhere and see your progress in charts and graphs. FREQUENTLY ASKED QUESTIONSWhat mobile devices are supported for syncing?The Fitbit Flex can sync directly to select iOS and Android devices. IOS: iPhone 4S, iPhone 5, 5S, 5C, iPod Touch (5th gen.), iPad 3, iPad 4, iPad mini. Android: Samsung Galaxy Note 10.1, Samsung Galaxy Note II, Samsung Galaxy S III, Samsung Galaxy S4How do I charge my flex?Your tracker battery lasts for about 5 days. To charge it, remove the tracker from the band and place it in the charger until all 5 lights are solid.If you are having trouble, your tracker's charging contacts may be obstructed by microscopic dirt or debris that prevents them from making a good connection to the charger. Use hand sanitizer and a tissue or dampen a cotton swab with rubbing alcohol and carefully clean the charging contacts on your tracker. Do not submerge your tracker in water or use abrasive cleaners. Thoroughly dry your tracker before attempting to charge. Be sure to fully seat your tracker into the charger, with the charging contacts fully inserted into the charging cable enclosure.How do I reset my tracker?lf your tracker is not responding, it may be fixed by restarting.1. Plug your charging cable into the USB port and insert your tracker into the charging cable. 2. Insert a paperclip into the small pinhole on the back of the charger. 3. Press on the pinhole for 3-4 seconds. Your Flex will now be reset. Take your tracker out of the charger and insert it back into the wristband.Can the wristband irritate my skin?The Flex wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. It does not contain latex. The clasp is made of surgical-grade stainless steel and contains traces of nickel. As with any type of jewelry, some people may experience allergies. Numerous factors can cause an allergy, such as a nickel sensitivity, reactions to bacteria that can accumulate in watch wristbands or other wearable devices, a reaction between the wristband and your soap or perspiration, or an allergy to the material of the wristband. If you notice any signs of skin irritation or experience any discomfort, please discontinue use.

Review: Nice product. Tracks everything. Wakes me up without disturbing my wife
Review: SUMMARY: This device will not do anything for you, but it will help you make good decisions about what you need to do yourself. Fitness is hard work. If I had to sum up what this device is doing for me, it is this. It is keeping me utterly honest about everything. I cannot lie to myself about how many calories I'm burning. It won't let me. Just knowing there is a record motivates me to make sure it is a good one. It's the same effect one gets if they know they are being graded. ﻿ ****** THE LONG VERSION I have been using the fitbit flex for five days now and I have fewer pounds and great fitting pants already, so it would be hard to regret my purchase. I went ahead and set my fitbit up to integrate with MyFitnessPal as soon as I set it up, so I have no idea how it works without it. Setting it up was a breeze. Go here: http://www.myfitnesspal.com/apps/show/fitbit and follow the instructions. Once it is set up it gives you a warning that you should only enter your food on MFP to avoid double entries. I have entered everything I eat on MFP, and the info magically finds it's way to my fitbit dashboard, and there have been no problems whatsoever. Entering exercise is a little more complicated. Once you've done the integration, your MFP exercise entries will require one extra step--the start time of your exercise. My entries consist mostly of running and swimming. Technically, I don't need to enter the runs, since the pedometer takes care of them just fine, but when I do enter a run, the two apps manage it well. MFP gives the start time and duration of the run to fitbit, and fitbit takes that info and does some calculations that take the pedometer data into account, and comes up with a number of calories burned. I have run into one snag...if I edit the start time of my entry in MFP after I've already logged it, it causes the exercise to log twice on fitbit and I have to go into fitbit and manually remove the double entry. Sometimes I'm lazy and I don't enter the runs in MFP and I just let fitbit use the pedometer data exclusively....I've not taken a close enough look at the difference to comment on it, but it seems to work well either way as far as calorie counting. I just prefer knowing the speed and duration of specific intervals and that data is lost if I don't enter it into MFP. I take the flex off when I swim laps, since I have a watch that counts my laps and distances for me and wearing both would be cumbersome. I enter my swims manually into MFP, and fitbit automatically calculates it all. I've had no problems. You'll have a new thing in your MFP display too. Your exercise log will have a "fitbit calorie adjustment" entry. For whatever reason, fitbit lets me eat just a little less than fitness pal does, so the math is obviously a little different on the two programs. If you are tall and have abnormally long legs like me, you may have to adjust fitbit's default stride settings. Their website can tell you how. The biggest lifestyle change for me has been brought about by the in-your-face awareness of just how sedentary sitting at a computer is. On days when I work at my desk, 6PM rolls around and I've only got maybe 500 steps logged. I'll hit the gym to do my 3 mile jog, and still be no where near the 10 thousand step goal that is the default setting for the fitbit, so I end up walking on the treadmill until I get there. I find myself going on long walks after my swim too. Maybe I'm crazy, but I can't stand to go to bed without meeting my step goals first, even if I've logged a long swim, but whatever the reasons, it is working, and fast. I am losing weight again after stalling out for quite a while. I mentioned only having 500 steps after a day at my desk. Yesterday I had my first day away from my desk...shopping, a little yardwork, housework, just getting all the little things that need done around the house...at 5pm I had logged 8000 steps and was almost to my goal. I mention this because I think this is what makes the fitbit worthwhile. It quantifies how sedentary your life is on a given day and then tells you exactly what you need to do to make up for it. And I know, if you are a desk worker like me, that 10,000 steps is going to seem a bit ridiculous after a day at the office, but trust me, if you can make yourself make up for it, you will be blown away by the results. I hesitate to put the numbers down for my weight loss over the last 5 days, because I have frankly lost weight faster than I should and I don't want to invite trolls or create unrealistic expectations...everyone is different. I am eating more than 2000 calories a day (within the recommendations of the app set at medium plan intensity), I'm not starving myself, and yes, my legs were pretty tired the first few days, but I promise, I feel great. I'll be at my goal of 145 in a couple of weeks at this rate. The fitbit didn't lose that weight for me...I worked my butt off all by myself, but fitbit helped me figure out what I needed to be doing. **** I know this review is getting long, but I wanted to mention a couple of other things. I LOVE the sleep monitoring. I have random bouts of insomnia, and I sometimes wake up repeatedly all night, and this thing has done a brilliant job of measuring how much time I've actually spent sleeping vs. how much time I've been in bed. And that number of hours of actual sleep correlates almost perfectly to how I feel, mentally, through the day. The default sensitivity is perfect for me...though I have seen it isn't so much for other people. It is easy to turn it on for naps too. Just tap it five times when you lay down, and again when you get up. You can fix it manually in the website if you forget...it will still have the movement data regardless of whether you tap it or not, it just needs to know when you were sleeping to fix it all. It accidentally goes into sleep mode here and there...once when I was using a hammer drill, once when I was using a hammer, and once when I was shaking a bottle of cat antibiotics to mix it, but when that happens, you know because it vibrates, and if you tap it five times right away to bring it out of sleep mode, it won't mess up your data.

## Features

- One syncs automatically and wirelessly to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology. Syncing to computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range: 20 feet. Call notifications via Bluetooth 4.0
- Water Resistance: Charge has been tested up to 1 ATM meaning it is sweat, rain and splash proof. However, the device is not swim proof. We also recommend taking Charge off before showering because, as with any wearable device, it’s best for your skin if the band stays dry and clean
- Warning: Do not use if you have a pacemaker or other internal, or implanted medical device. Not intended for use by children under 13. Always consult your physician. Slippery when wet
- We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours. Battery life: up to 7 - 10 days. Battery type: Lithium-polymer
- Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BGO0QEO |
| ASIN  | B00BGO0QEO |
| Batteries  | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | 544,267 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 24,497 in Sports Electronics & Gadgets |
| Brand | Fitbit |
| Customer Reviews | 4.1 4.1 out of 5 stars (4,255) |
| Customer reviews | 4.1 4.1 out of 5 stars (4,255) |
| Date First Available | 6 May 2013 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Department  | womens |
| Is discontinued by manufacturer  | No |
| Item model number  | FB401SL |
| Manufacturer  | Fitbit |
| Product Dimensions  | 1.52 x 0.95 x 20.83 cm; 11.34 g |
| Units | 1 Count |

## Images

![Fitbit Flex Wireless Activity + Sleep Wristband, Slate - Image 1](https://m.media-amazon.com/images/I/51qrk3-c-lL.jpg)
![Fitbit Flex Wireless Activity + Sleep Wristband, Slate - Image 2](https://m.media-amazon.com/images/I/61Xd7Kp6Z3L.jpg)
![Fitbit Flex Wireless Activity + Sleep Wristband, Slate - Image 3](https://m.media-amazon.com/images/I/61Q3Lf5oEVL.jpg)
![Fitbit Flex Wireless Activity + Sleep Wristband, Slate - Image 4](https://m.media-amazon.com/images/I/61rptPSEvzL.jpg)
![Fitbit Flex Wireless Activity + Sleep Wristband, Slate - Image 5](https://m.media-amazon.com/images/I/91zoPy4bcEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***N on 14 May 2016*

Nice product. Tracks everything. Wakes me up without disturbing my wife

### ⭐⭐⭐⭐⭐ Review
*by S***N on 25 May 2013*

SUMMARY: This device will not do anything for you, but it will help you make good decisions about what you need to do yourself. Fitness is hard work. If I had to sum up what this device is doing for me, it is this. It is keeping me utterly honest about everything. I cannot lie to myself about how many calories I'm burning. It won't let me. Just knowing there is a record motivates me to make sure it is a good one. It's the same effect one gets if they know they are being graded. ﻿ ****** THE LONG VERSION I have been using the fitbit flex for five days now and I have fewer pounds and great fitting pants already, so it would be hard to regret my purchase. I went ahead and set my fitbit up to integrate with MyFitnessPal as soon as I set it up, so I have no idea how it works without it. Setting it up was a breeze. Go here: http://www.myfitnesspal.com/apps/show/fitbit and follow the instructions. Once it is set up it gives you a warning that you should only enter your food on MFP to avoid double entries. I have entered everything I eat on MFP, and the info magically finds it's way to my fitbit dashboard, and there have been no problems whatsoever. Entering exercise is a little more complicated. Once you've done the integration, your MFP exercise entries will require one extra step--the start time of your exercise. My entries consist mostly of running and swimming. Technically, I don't need to enter the runs, since the pedometer takes care of them just fine, but when I do enter a run, the two apps manage it well. MFP gives the start time and duration of the run to fitbit, and fitbit takes that info and does some calculations that take the pedometer data into account, and comes up with a number of calories burned. I have run into one snag...if I edit the start time of my entry in MFP after I've already logged it, it causes the exercise to log twice on fitbit and I have to go into fitbit and manually remove the double entry. Sometimes I'm lazy and I don't enter the runs in MFP and I just let fitbit use the pedometer data exclusively....I've not taken a close enough look at the difference to comment on it, but it seems to work well either way as far as calorie counting. I just prefer knowing the speed and duration of specific intervals and that data is lost if I don't enter it into MFP. I take the flex off when I swim laps, since I have a watch that counts my laps and distances for me and wearing both would be cumbersome. I enter my swims manually into MFP, and fitbit automatically calculates it all. I've had no problems. You'll have a new thing in your MFP display too. Your exercise log will have a "fitbit calorie adjustment" entry. For whatever reason, fitbit lets me eat just a little less than fitness pal does, so the math is obviously a little different on the two programs. If you are tall and have abnormally long legs like me, you may have to adjust fitbit's default stride settings. Their website can tell you how. The biggest lifestyle change for me has been brought about by the in-your-face awareness of just how sedentary sitting at a computer is. On days when I work at my desk, 6PM rolls around and I've only got maybe 500 steps logged. I'll hit the gym to do my 3 mile jog, and still be no where near the 10 thousand step goal that is the default setting for the fitbit, so I end up walking on the treadmill until I get there. I find myself going on long walks after my swim too. Maybe I'm crazy, but I can't stand to go to bed without meeting my step goals first, even if I've logged a long swim, but whatever the reasons, it is working, and fast. I am losing weight again after stalling out for quite a while. I mentioned only having 500 steps after a day at my desk. Yesterday I had my first day away from my desk...shopping, a little yardwork, housework, just getting all the little things that need done around the house...at 5pm I had logged 8000 steps and was almost to my goal. I mention this because I think this is what makes the fitbit worthwhile. It quantifies how sedentary your life is on a given day and then tells you exactly what you need to do to make up for it. And I know, if you are a desk worker like me, that 10,000 steps is going to seem a bit ridiculous after a day at the office, but trust me, if you can make yourself make up for it, you will be blown away by the results. I hesitate to put the numbers down for my weight loss over the last 5 days, because I have frankly lost weight faster than I should and I don't want to invite trolls or create unrealistic expectations...everyone is different. I am eating more than 2000 calories a day (within the recommendations of the app set at medium plan intensity), I'm not starving myself, and yes, my legs were pretty tired the first few days, but I promise, I feel great. I'll be at my goal of 145 in a couple of weeks at this rate. The fitbit didn't lose that weight for me...I worked my butt off all by myself, but fitbit helped me figure out what I needed to be doing. **** I know this review is getting long, but I wanted to mention a couple of other things. I LOVE the sleep monitoring. I have random bouts of insomnia, and I sometimes wake up repeatedly all night, and this thing has done a brilliant job of measuring how much time I've actually spent sleeping vs. how much time I've been in bed. And that number of hours of actual sleep correlates almost perfectly to how I feel, mentally, through the day. The default sensitivity is perfect for me...though I have seen it isn't so much for other people. It is easy to turn it on for naps too. Just tap it five times when you lay down, and again when you get up. You can fix it manually in the website if you forget...it will still have the movement data regardless of whether you tap it or not, it just needs to know when you were sleeping to fix it all. It accidentally goes into sleep mode here and there...once when I was using a hammer drill, once when I was using a hammer, and once when I was shaking a bottle of cat antibiotics to mix it, but when that happens, you know because it vibrates, and if you tap it five times right away to bring it out of sleep mode, it won't mess up your data.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 1 March 2016*

This is my 2nd FitBit unit (the earlier one won't charge, battery lost its juice within a year). Keeps track of number of steps taken in a day and motivates to walk more.

## Frequently Bought Together

- Fitbit Flex Wireless Activity + Sleep Wristband, Slate, Small/Large
- Fitbit Inspire 3 Health &-Fitness-Tracker with Stress Management, Workout Intensity, Sleep Tracking, 24/7 Heart Rate and more, Midnight Zen/Black One Size (S & L Bands Included)
- Fitbit Aria Air Smart Scale, Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/69633012-fitbit-flex-wireless-activity-sleep-wristband-slate](https://www.desertcart.ie/products/69633012-fitbit-flex-wireless-activity-sleep-wristband-slate)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-04*