--- product_id: 34007901 title: "Fitbit Flex 2, Black (US Version), 1 Count" brand: "fitbit" price: "€ 2.47" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.at/products/34007901-fitbit-flex-2-black-us-version-1-count store_origin: AT region: Austria --- # Auto workout & sleep tracking 5-day battery life Swim-proof & ocean-ready Fitbit Flex 2, Black (US Version), 1 Count **Brand:** fitbit **Price:** € 2.47 **Availability:** ❌ Out of Stock ## Summary > ⌚️ Flex your fitness, your way—sleek, smart, swim-ready! ## Quick Answers - **What is this?** Fitbit Flex 2, Black (US Version), 1 Count by fitbit - **How much does it cost?** € 2.47 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/34007901-fitbit-flex-2-black-us-version-1-count) ## 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 - • **Stay Connected, Hands-Free:** Get call & text alerts with unique vibrations and color-coded LEDs—never miss a moment. - • **Seamless Swim & Sweat Proof:** Dive into your fitness routine without missing a beat—track laps, calories, and distance even underwater. - • **SmartTrack Auto-Recognition:** Effortlessly log workouts with intelligent exercise detection—your personal trainer on your wrist. - • **Sleep Smarter, Wake Refreshed:** Automatic sleep analysis plus silent vibrating alarms for a gentle, personalized wake-up. - • **Ultra-Thin, Customizable Style:** Discreet tracker slips into bands, bangles, or pendants—fitness that fits your vibe. ## Overview The Fitbit Flex 2 is an ultra-thin, swim-proof fitness tracker that automatically monitors your daily activity, workouts, and sleep. Featuring SmartTrack technology, customizable wear options, and discreet LED notifications, it empowers busy professionals to stay connected and motivated—whether running, swimming, or powering through the workday. With up to 5 days of battery life and a sleek design, it’s the perfect blend of style and performance for the modern multitasker. ## Description Product Description Meet the all-new Fitbit Flex 2—a slim, swim-proof fitness wristband that’s ready to go wherever life takes you. The ultra-thin, removable tracker hides in bands, bangles and pendants, so you can wear it in a way that’s all your own. Automatic all-day activity and sleep tracking show you how your entire day adds up, and SmartTrack automatic exercise recognition records your exercises for you. The discreet progress display uses color-coded LED lights to keep you connected to calls, texts and Reminders to Move. Plus you don’t have to worry about getting it wet—whether you’re swimming in the pool or running in the rain. It’s the next generation model of our most iconic tracker. No fuss, all fun, and fit for every you. Manufacturer Contact Information Customers contact: support@fitbit.com Review: Highly recommend for you swimmers!!! Of course for runners too! - Ok, I am a longtime Fitbit user and was hoping the Fitbit2 would be a quantum improvement on an otherwise great product. After using it for a few weeks I can say that it certainly is. The core functions of the original Fitbit always served my running workout routine well. However I always wished I could use it in the pool. That said I was skeptical it would actually record my lap swim accurately. It worked great, better than hoped for. My first clue that this was a quantum improvement came after the first gym visit wearing the Fitbit2. It recognized that I was on a elliptical machine and recorded it promptly. For the swim, I set the pool length (finding how to do that was not easy though) and started in. I also set it to notify me when I passed my 45 minute first benchmark. I also used a watch and counter also to make things honest. At 45 minutes the band vibrated which I could feel in the water. After I found it had not only correctly timed the 1 hour swim, but had correctly calculated the distance and added to the Dashboard!! Wow, just what I needed!! I noticed a few concerns, but nothing that have kept me from being impressed. All and all, so far HIGHLY recommend. Pros: 1. Does all the original Fitbit did in a smaller more secure package 2. GREAT for swimming laps. No need to wear a separate swimming watch. 3. Update process was smooth 4. Better appearance and stronger clasp. Cons: 1. Seems to last about 5 days between charges, old one was 7. That may change as I stabilize my usage pattern. 2. Not simple to program swim mode. Seems simple after you figure it out but not immediately intuitive. 3. The way the device inserts into the band requires bending the band. This concerns me that band breakage such as with the Fitbit1 may become a problem again. Review: Tiny, rugged, basic, and excellent! - This summer my fiance requested a Fitbit. One night there was a sale too good to pass up, so I quickly did as much research as I could and weighed it with what my fiance wanted in a fitness band. I got her the Alta back in late June and she loved it! After having it for a week or two and really getting acquainted with it, she started showing me all the stuff it tracked in the app and I was seriously impressed. As a longtime Samsung Gear Fit user, I saw the Fitbit app blew the Gear Fit's out of the water. When I originally got my Gear Fit I wanted something that tracked my heart rate and steps but also could show me time, texts, and notifications from certain apps, as I missed wearing an actual watch, but wanted some tech too. While I still wanted a watch, I decided to get myself the smallest, cheapest Fitbit so I too could utilize the app, and I am thrilled with this little guy. So these days I still wear my Gear Fit on my watch arm and the Flex 2 on my other wrist. It works for me and I am very happy. The thing I love about the Flex 2 is its size. It is so small! My one main problem with the Gear Fit was that it was just a bit too big to sleep with on, as it would cause my arm to really fall asleep badly, so I could never utilize the sleep function of the watch. Even the Alta my fiance has is too big for her (causes the same problem on her as my Samsung does with me) but this Flex 2 poses no such problem with me, so I have been really happy that I can now track my sleep. It has given me some serious insight into how I spend my sleeping hours. Overall, I lover this thing! The app is superb, the Fitbit is tiny, water resistant, and holds a good charge. The band is nice too. The next smartwatch I get will be more aesthetically pleasing and less fitness based because I've got this little Flex 2 that tracks all the fitness type stuff I need. ## Features - Track steps, distance, calories burned and active minutes. LED display lights up to show progress toward your daily goal - Ultra-thin, removable tracker hides in bands, pendants and bangles - Swim proof for tracking, swimming, life proof for wear in the ocean, shower, pool and beyond - SmartTrack automatically recognizes select workouts and records them to your Fitbit app - Get call and text notifications on your wrist with unique vibration patterns and color-coded LED lights - Automatically track how long and how well you sleep, and set a silent alarm to wake with a small vibration - Fitbit does not guarantee the quality or authenticity of products purchased from non authorized resellers on desertcart, and they are not eligible for warranty/replacement ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01KH2PV4U | | ASIN | B01KH2PV4U | | Batteries | 1 CR2 batteries required. (included) | | Battery Average Life | 5 Hour | | Battery Description | Lithium-Ion | | Best Sellers Rank | #390,533 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,040 in Activity & Fitness Trackers | | Brand Name | Fitbit | | Color | Black | | Compatible Devices | Smartphones, Tablets, Desktops | | Customer Reviews | 4.0 4.0 out of 5 stars (5,294) | | Date First Available | August 16, 2016 | | Department | womens | | Global Trade Identification Number | 00810351028888 | | Is Discontinued By Manufacturer | No | | Item Dimensions L x W x H | 0.64"L x 0.35"W x 0.45"H | | Item Weight | 0.04 Pounds | | Item model number | FB403BK | | Manufacturer | Fitbit Inc | | Manufacturer | Fitbit Inc | | Manufacturer Contact Information | Customers contact: support@fitbit.com | | Manufacturer Part Number | FB403BK | | Material Type | Elastomer, Stainless Steel | | Model Number | FB403BK | | Product Dimensions | 10 x 0.45 x 0.37 inches; 0.64 ounces | | Sensor Type | Accelerometer | | Size | 1 Count (Pack of 1) | | UPC | 810351028888 | | Unit Count | 1.0 Count | ## Product Details - **Battery Description:** Lithium-Ion - **Battery Life:** 5 Hour - **Brand:** Fitbit - **Color:** Black - **Compatible Devices:** Smartphones, Tablets, Desktops - **Item Weight:** 0.04 Pounds - **Material:** Elastomer, Stainless Steel - **Product Dimensions:** 0.64"L x 0.35"W x 0.45"H - **Sensor Type:** Accelerometer - **UPC:** 810351028888 ## Images ![Fitbit Flex 2, Black (US Version), 1 Count - Image 1](https://m.media-amazon.com/images/I/512XgdrRevL.jpg) ![Fitbit Flex 2, Black (US Version), 1 Count - Image 2](https://m.media-amazon.com/images/I/51u9KUCDoZL.jpg) ![Fitbit Flex 2, Black (US Version), 1 Count - Image 3](https://m.media-amazon.com/images/I/51OYN+G+xnL.jpg) ![Fitbit Flex 2, Black (US Version), 1 Count - Image 4](https://m.media-amazon.com/images/I/51eWBnoMsNL.jpg) ![Fitbit Flex 2, Black (US Version), 1 Count - Image 5](https://m.media-amazon.com/images/I/61IDr+JzUjL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Does it come with charger or do you have to buy separately?** A: It comes with a charger. I have not been able to buy it separately. You have to buy a whole new Flex 2. **Q: Will this recognize activity from stationary cycling?** A: I don't think any one of these people really answered your question. It is not going to recognize that you are cycling and it will just run up your step count. I find this to be a problem because I am not taking any steps when I am riding my bike and don't want that counted as walking. **Q: do you have to have the app or a phone** A: If your phone is not compatible with the device (as mine was not compatible) then you MUST purchase a dongle to go with this particular tracker as it is not included in the purchase of the Fitbit Flex 2. With a dongle plugged into your computer, you pull up the Fitbit icon on your computer and tell it to sync if it has not synced in a while....but it will sync from time to time on its own. If your phone does work with the tracker, then you just download the app and you are set to go. **Q: Does this fitness tracker touch the skin? If so has anyone with a nickel allergy worn it for a substantial amount of time?** A: I have a severe nickel allergy -- rash, swelling, blisters. But the Fitbit Flex 2 band doesn't irritate my skin at all, even though I've been wearing it 24/7 since I got it. Granted, only the two little posts that secure the band (not the tracker itself) have any metal that touches my skin, but usually that would be enough to set my wrist on fire. When I researched before buying, the only official word I could get from Fitbit said the clasp is surgical grade stainless steel, which by definition shouldn't have any nickel in/on it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Highly recommend for you swimmers!!! Of course for runners too! *by S***S on October 15, 2016* Ok, I am a longtime Fitbit user and was hoping the Fitbit2 would be a quantum improvement on an otherwise great product. After using it for a few weeks I can say that it certainly is. The core functions of the original Fitbit always served my running workout routine well. However I always wished I could use it in the pool. That said I was skeptical it would actually record my lap swim accurately. It worked great, better than hoped for. My first clue that this was a quantum improvement came after the first gym visit wearing the Fitbit2. It recognized that I was on a elliptical machine and recorded it promptly. For the swim, I set the pool length (finding how to do that was not easy though) and started in. I also set it to notify me when I passed my 45 minute first benchmark. I also used a watch and counter also to make things honest. At 45 minutes the band vibrated which I could feel in the water. After I found it had not only correctly timed the 1 hour swim, but had correctly calculated the distance and added to the Dashboard!! Wow, just what I needed!! I noticed a few concerns, but nothing that have kept me from being impressed. All and all, so far HIGHLY recommend. Pros: 1. Does all the original Fitbit did in a smaller more secure package 2. GREAT for swimming laps. No need to wear a separate swimming watch. 3. Update process was smooth 4. Better appearance and stronger clasp. Cons: 1. Seems to last about 5 days between charges, old one was 7. That may change as I stabilize my usage pattern. 2. Not simple to program swim mode. Seems simple after you figure it out but not immediately intuitive. 3. The way the device inserts into the band requires bending the band. This concerns me that band breakage such as with the Fitbit1 may become a problem again. ### ⭐⭐⭐⭐⭐ Tiny, rugged, basic, and excellent! *by N***Z on October 2, 2017* This summer my fiance requested a Fitbit. One night there was a sale too good to pass up, so I quickly did as much research as I could and weighed it with what my fiance wanted in a fitness band. I got her the Alta back in late June and she loved it! After having it for a week or two and really getting acquainted with it, she started showing me all the stuff it tracked in the app and I was seriously impressed. As a longtime Samsung Gear Fit user, I saw the Fitbit app blew the Gear Fit's out of the water. When I originally got my Gear Fit I wanted something that tracked my heart rate and steps but also could show me time, texts, and notifications from certain apps, as I missed wearing an actual watch, but wanted some tech too. While I still wanted a watch, I decided to get myself the smallest, cheapest Fitbit so I too could utilize the app, and I am thrilled with this little guy. So these days I still wear my Gear Fit on my watch arm and the Flex 2 on my other wrist. It works for me and I am very happy. The thing I love about the Flex 2 is its size. It is so small! My one main problem with the Gear Fit was that it was just a bit too big to sleep with on, as it would cause my arm to really fall asleep badly, so I could never utilize the sleep function of the watch. Even the Alta my fiance has is too big for her (causes the same problem on her as my Samsung does with me) but this Flex 2 poses no such problem with me, so I have been really happy that I can now track my sleep. It has given me some serious insight into how I spend my sleeping hours. Overall, I lover this thing! The app is superb, the Fitbit is tiny, water resistant, and holds a good charge. The band is nice too. The next smartwatch I get will be more aesthetically pleasing and less fitness based because I've got this little Flex 2 that tracks all the fitness type stuff I need. ### ⭐⭐⭐⭐ Review for SWIMMERS *by R***E on October 29, 2016* I'm writing this review specifically for swimmers who are considering this device since it's the only swim-able (or at least swim certified) Fitbit available. I've had my Flex 2 for about two weeks now. I'm coming from the Charge HR, so the features I'm leaving behind are the HR monitor and Altimeter (for stairs flight counting). I can live without both of these in favor of swim tracking. I never found the HR monitor to be accurate enough for anything other than resting HR anyway... Before you hit the pool, be sure to configure the following three settings. You only need to do this once I've read that some people had trouble finding the settings They're all located within your "Account" screen. My instructions below are for a Samsung Galaxy S7. I'm not sure how much different it is on iOS but I suspect you can find everything you need from the Account screen.: 1) Set Auto-recognize time: This is the amount of time you need to perform the activity in order for it to recognize: Account --> Settings (gear wheel in upper right) --> Exercise --> Swimming. I set auto-recognize to 10 mins (this is the lowest it will accept) 2) Set the pool length in yards or meters: Account --> Settings (gear wheel in upper right) --> Swim Settings (at the bottom). 3) Choose whether you'd like to view your swim distance in Yards or Meters (I align this with my pool length, so if the pool is 25 meters long, you probably want to display your units in Meters) Account --> Settings (gear wheel in upper right) --> Units --> Swim That's it. Now you're ready to hit the pool, and the device will automatically recognize your swimming. Here's the pros and cons I've found related to swim tracking: Pros: 1) Distance / # of laps is 100% accurate. If you think about it, this isn't so tough for Fitbit to get right. Once it recognizes that you're swimming, the difference in movement when you reach the end of the pool (either flip turn or simply turning around) are very easy to distinguish, so the device accurately tracks your number of laps. I've swam with it 3 times now and each time, the result was 100% accurate. If you're looking for a device that will accurately track your # of laps, I'm convinced that this one works flawlessly (note: I haven't tried it with multiple different strokes in the same swim). 2) You don't necessarily have to swim for 10 consecutive minutes in order for it to recognize your activity. This morning I was swimming sets of 250m on the 6 minute mark. This means I would swim a 250 in approx 5 mins, then rest for 1 minute and start again. I did this for 30 mins, so 5 sets of 250 with a one minute break in between. The device accurately recognized my 30 minute / 1,250M swim even though I never swam consistently for 10 mins at any point in time. Con: My main complaint (and reason for only 4 stars) is because the data available to me after my swim is extremely limited. I can see total distance (in laps and meters) and total duration, however the chart only shows calories per minute. As others have commented, the calorie tracker is a complete guess, so I'm not really interested in the calorie count. What I would like to see is my lap times so I can analyze how my pace is over the course of my swim. This data is available because my tracker knows the exact duration of each lap, but for some reason Fitbit does not make this information available to me. The only data available is Calories, "Impact" on my day (Calories and # Active Minutes), and overall number of lengths and distance. Once Fitbit adds a Pace screen (showing individual lap times and also a chart with this information), I will boost my rating to 5 stars! ## Frequently Bought Together - Fitbit Flex 2, Black (US Version), 1 Count - EXMRAT Compatible with Fitbit Flex 2 Charger Cable (2Pack, 30cm/1ft), USB Charger Charging Cable for Fitbit Flex 2 (Black, 2Pack) - LEEFOX Compatible with Fit bit Flex 2 Band, Replacement for Flex 2 Accessories Silicon Wristbands w/Fastener Clasp Fitness Strap for Original Flex 2, No Tracker --- ## 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.at/products/34007901-fitbit-flex-2-black-us-version-1-count](https://www.desertcart.at/products/34007901-fitbit-flex-2-black-us-version-1-count) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-26*