--- product_id: 34007901 title: "Fitbit Flex 2, Black (US Version), 1 Count" brand: "fitbit" price: "£0.74" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/34007901-fitbit-flex-2-black-us-version-1-count store_origin: GB region: Great Britain --- # Auto workout & sleep tracking 5-day battery life Swim-proof & ocean-ready Fitbit Flex 2, Black (US Version), 1 Count **Brand:** fitbit **Price:** £0.74 **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?** £0.74 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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 ## 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 | #294,101 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #741 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 | 18.14 g | | 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:** 18.14 g - **Material:** Elastomer, Stainless Steel - **Product Dimensions:** 0.64"L x 0.35"W x 0.45"H - **Sensor Type:** Accelerometer - **Unit Count:** 1.0 Count ## 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. ## 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.co.uk/products/34007901-fitbit-flex-2-black-us-version-1-count](https://www.desertcart.co.uk/products/34007901-fitbit-flex-2-black-us-version-1-count) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-05-01*