Fitbit
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Fitbit Flex 2, Black (US Version), 1 Count
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Fitbit Flex 2, Black (US Version), 1 Count
Meet the all-new Fitbit Flex 2—a slim, swim-proof fitness wristband that’s ready to go wherever life takes you.
Fitbit Flex 2, Black (US Version), 1 Count
Item #: 17656784

Fitbit Flex 2, Black (US Version), 1 Count

86% of respondents would recommend this to a friend

Item #: 17656784
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Meet the all-new Fitbit Flex 2—a slim, swim-proof fitness wristband that’s ready to go wherever life takes you.
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What Stands Out

Swim-proof Design
The Fitbit Flex 2 is water-resistant, allowing users to track activities while swimming, which sets it apart from competitors that may require removal during water activities.
Slim Profile
With its sleek and unobtrusive design, the Flex 2 complements any style, making it suitable for users seeking a fashionable fitness tracker without compromising on performance.
SmartTrack Technology
This innovative feature automatically recognizes and records various exercises, providing users with accurate activity data and insights, ensuring they never miss a workout's contribution to their fitness goals.

Product Details

Get the Fitbit Flex 2, a waterproof fitness wristband with automatic activity tracking & exercise recognition. Stay connected on the go. Shop now on Ubuy Taiwan!
  • Tracks steps, distance, calories burned, and active minutes with LED display for progress monitoring
  • Ultra-thin, removable tracker hides in bands, pendants, and bangles
  • Swim-proof design suitable for tracking activities in water and can be worn in the shower, pool, and ocean
  • SmartTrack feature automatically recognizes select workouts and records them to the Fitbit app
  • Receives call and text notifications with unique vibration patterns and color-coded LED lights
  • Automatic tracking of sleep duration and quality, with a silent alarm feature
Package Weight1 Pound

Who Should Buy?

Suitable For
  • Fitness Enthusiasts

    Ideal for users seeking a slim, stylish fitness tracker to monitor daily activity, sleep patterns, and progress.

  • Casual Wearers

    Perfect for those who prefer a more understated design that seamlessly fits with everyday attire and lifestyle.

  • Goal-Oriented Individuals

    Great for users looking to set and track fitness goals with reminders, encouraging a more active lifestyle.

Not Suitable For
  • Serious Athletes

    May not provide advanced metrics required by professional athletes for training and performance analysis.

Product Description

Fitbit Flex 2, Black (US Version), 1 Count

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Customer Questions & Answers

  • Question: What features does the Fitbit Flex 2 offer for tracking fitness?

    Answer: The Fitbit Flex 2 is equipped with a variety of features to help track your fitness levels, including all-day step tracking, distance traveled, and calories burned. Its slim and stylish design makes it perfect for both workouts and daily wear. Additionally, it has a smart track feature that automatically recognizes and records activities such as running, biking, and swimming, making it easier to log workouts without manual input.
  • Question: Is the Fitbit Flex 2 water-resistant?

    Answer: Yes, the Fitbit Flex 2 is water-resistant up to 50 meters, which means you can wear it while swimming or showering without worry. This feature allows users to track swimming sessions accurately through the app, making it an excellent companion for all water-based activities. Whether you're diving into a pool or getting caught in the rain, the Flex 2 is designed to handle it.
  • Question: Can the Fitbit Flex 2 monitor sleep patterns?

    Answer: Absolutely! The Fitbit Flex 2 has a sleep tracking feature that monitors the duration and quality of your sleep. It records your sleep patterns, including periods of light and deep sleep. This information can help you improve your sleep habits and overall well-being, as you can analyze your nightly routines and make necessary adjustments to enhance sleep quality.
  • Question: How does the Fitbit Flex 2 sync with my smartphone?

    Answer: The Fitbit Flex 2 pairs with your smartphone via Bluetooth, allowing you to sync data automatically to the Fitbit app. This app gives you insights into your fitness statistics, sleep trends, and goal progress. To connect, simply download the Fitbit app, register or log in, and follow the prompts to connect your device, making it convenient to keep track of your fitness journey effortlessly.
  • Question: What type of notifications does the Fitbit Flex 2 support?

    Answer: The Fitbit Flex 2 provides light vibration alerts for calls, texts, and calendar events from your smartphone. Although it does not display the content directly, you can achieve a nice balance between connectivity and focus by receiving discreet notifications. This can be especially useful during workouts or meetings, ensuring you stay connected without distractions.
  • Question: Can I customize the look of my Fitbit Flex 2?

    Answer: Yes, the Fitbit Flex 2 is highly customizable with a variety of accessory bands available in different colors and materials, such as silicone, metal, and leather. This allows users to adapt the wristband to fit different occasions, from casual to formal settings. Personalizing your Flex 2 not only reflects your style but also enhances its comfort during your daily activities.
  • Question: What is the battery life of the Fitbit Flex 2?

    Answer: The Fitbit Flex 2 boasts an impressive battery life of up to five days on a single charge. This longevity allows you to monitor your activities without the hassle of frequent recharging. You can simply charge it overnight, ensuring it’s ready for a full cycle of using it the next day or over the weekend for extended fitness tracking.
  • Question: Is the Fitbit Flex 2 compatible with both iOS and Android?

    Answer: Yes, the Fitbit Flex 2 is compatible with both iOS and Android devices. The Fitbit app is available on both platforms, allowing users to track their fitness data and receive notifications seamlessly. This cross-compatibility ensures that you can maintain your health and fitness goals regardless of which smartphone you use.
  • Question: Does the Fitbit Flex 2 come with a heart rate monitor?

    Answer: No, the Fitbit Flex 2 does not include a built-in heart rate monitor. However, it primarily focuses on step tracking, sleep monitoring, and general activity levels. For those looking specifically to track heart rate, Fitbit offers other devices with that feature. The Flex 2 is ideal for users who prefer a minimalist approach to fitness tracking and do not require heart rate information.
  • Question: Where can I buy Fitbit Flex 2, Black US Version, 1 Count?

    Answer: You can purchase the Fitbit Flex 2, Black US Version, 1 Count at Ubuy. They offer a wide selection of electronics and fitness devices, ensuring you get the original product with reliable service. Check their website for availability and options to make your purchase.

Fitbit Activity & Fitness Trackers Editorial Review

Fitbit Flex 2, Black (US Version), 1 Count is an exceptional fitness tracker designed with enhanced features tailored for active lifestyles. This updated model allows users to swim worry-free, accurately tracking lap distances and times, a significant upgrade praised by many users. Its petite design makes it comfortable enough for continuous wear, including during sleep, without the bulkiness felt in other models. Users noted the app's intuitive interface, adding to the product's appeal, while some found initial setup for swimming features slightly challenging. Overall, it stands out for its reliable tracking of various activities, including gym routines and swimming, making it a fantastic choice for fitness enthusiasts.

Customer Reviews & Ratings

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Pros

  • Great for swimming laps without needing a separate watch
  • Smaller and more secure design than previous models
  • Smooth update process enhances functionality
  • Accurate tracking of distance and swim times
  • Comfortable for sleep tracking without bulkiness

Cons

  • Initial setup for swim mode can be unintuitive

Platform Trust & Buyer Confidence

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4.2/5 9250 + reviews
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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
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Features & Benefits

  • 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.

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