Tag: Whoop 5.0

  • Whoop alternative: Open-source app kills expensive subscriptions

    Whoop alternative: Open-source app kills expensive subscriptions

    Key Takeaway

    – Goose is an open-source app that pulls health data from a Whoop 5.0 tracker entirely offline, bypassing the subscription.
    – It operates locally on iOS using SwiftUI for the interface and Rust for processing Bluetooth data packets.
    – The project is a raw, pre-alpha proof of concept with lag, iOS-only support, and no compatibility with older Whoop models.
    – An alternative is Google’s Fitbit Air, a subscription-light competitor to Whoop.


    Hardware subscription fatigue hits a boiling point

    Consumers are increasingly tired of buying a premium piece of technology, only to find that there own biometric data is locked behind a mandatory monthly paywall. We saw this friction recently when Oura Ring users began looking for subscription-free workarounds to access there data, and now the movement has arrived for screenless fitness trackers.

    Whoop’s business model under fire

    The primary target this time is Whoop. From it’s inception, the company has built its business model on the idea that the wearable is useless without an active subscription. If you stop paying the monthly fee, the device on your wrist essentially becomes a paperweight, leaving customers frustrated with there lack of control.

    An open-source challenger emerges

    However, an independent developer named Bennet is challenging that paradigm with an open-source project called Goose, which aims to see just how much utility can be squeezed out of the tracker without giving Whoop another dime. Announced recently on X, the project is a raw, pre-alpha proof of concept. It is far from a polished consumer application, but it successfully achieves the unthinkable: it pulls and displays health data directly from the wearable entirely offline.

    How the app bypasses the paywall

    I had a look at the GitHub files, and the app eliminates the need for external servers by operating as a local-first application. When the fitness band transmits data, the app uses standard Bluetooth connection protocols on your phone to intercept the raw data packets right out of the air, giving users back there own information without ongoing fees.

    Technical architecture and performance

    To handle this constant stream of data without melting your phone’s battery, the project uses a hybrid architecture. The user interface is built using SwiftUI, giving you a clean dashboard for tracking sleep, strain, and recovery metrics. Meanwhile, the heavy lifting of parsing and decoding those raw Bluetooth packets is handed off to a high-performance backend written in Rust. The two sides communicate locally on the device, ensuring your health data never leaves your phone, which is a big win for privacy.

    Limitations and current state

    Now, while the achievement is impressive, the project is still a developer’s playground rather than a viable alternative for the average user. Because the code is unoptimized, early builds suffer from quite a lot of processing lag. The app is also currently built exclusively for iOS devices, meaning Android users are locked out for the time being. There’s also no support for older hardware, and the app only works with the latest Whoop 5.0 model. If you don’t feel like trying out the app, Google recently launched Fitbit Air, a direct competitor to Whoop that doesn’t rely heavily on subscriptions. There’s also a Google Health premium subscription if you need more information.

    • Goose is an open-source project that bypasses Whoop’s subscription.
    • It uses Bluetooth to intercept data from the wearable directly.
    • The app is currently only available for iOS and Whoop 5.0.
    • Performance issues and processing lag are present in early builds.
    • Google’s Fitbit Air offers a subscription-free alternative.
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  • Tesla Engineers Create Most Accurate Fitness Tracker for Workouts

    Tesla Engineers Create Most Accurate Fitness Tracker for Workouts

    Key Takeaways

    1. Fort’s Whoop 5.0 fitness tracker can identify over 50 exercises automatically, providing detailed data without manual input.
    2. Users can log workouts effortlessly, as the device records sessions just by wearing it, utilizing heart rate and motion sensors.
    3. The tracker offers comprehensive monitoring, including cardio activities, sleep, and stress levels, while also illustrating weekly progress and muscle group stimulation.
    4. Weighing only 30 grams, the device is designed for all-day comfort and has a battery life of seven days.
    5. The Fort Fitness wristband will launch in Q3 2026, priced at US$289, initially available only in the USA.


    Fort has introduced a new option to the Whoop 5.0 fitness tracker, aiming to capture strength training data with greater accuracy than its rivals. The company claims that this device can identify over 50 distinct exercises without the need for manual input. Instead of merely showing a higher heart rate, Fort is designed to display specific details, like the exact number of squats, push-ups, or sit-ups completed during a workout.

    Effortless Tracking

    To log a workout, users do not have to launch an app or hit any buttons; just wearing the Fort on your wrist allows it to automatically record every session. This wearable utilizes data from heart rate and motion sensors, which is processed through sophisticated algorithms. The smartphone application that comes with it not only tracks the number of repetitions for various exercises but also illustrates weekly progress and highlights muscle groups that may not be getting enough stimulation.

    Comprehensive Monitoring

    Fort is also capable of tracking cardio activities such as running and can monitor sleep and stress levels. At just 30 grams, the wristband is designed for all-day comfort, and its battery boasts a lifespan of seven days. Available in silver, black, or gold, the Fort can be paired with different wristbands to complement your style.

    Availability and Pricing

    The Fort Fitness wristband is set to launch in the third quarter of 2026, although initially, it will only be shipped within the USA. The price for this wearable is US$289. More details can be found on the company’s official site.

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  • Smartlet One: Apple Watch and Analog Watch in One Band

    Smartlet One: Apple Watch and Analog Watch in One Band

    Key Takeaways

    1. Smartlet One allows you to wear both an analog watch and a smartwatch on one wrist.
    2. The band is available in three styles: stainless steel (silver or black) and titanium (gray).
    3. It features a quick-release clasp for easy use and adjustable length with included tools.
    4. Pricing ranges from $416 to $713, depending on color and finish, with free shipping included.
    5. Compatible with various watches that have band widths from 18 mm to 24 mm, including popular brands like Apple, Garmin, and Fitbit.


    Smartlet One is a unique smartwatch band that can hold two watches at once: one on the top and one on the underside of your wrist. This design lets you wear both an analog watch and a smartwatch together, like an Apple Watch or a Whoop MG for fitness tracking, without giving up the classic look of a traditional watch.

    Band Options

    You can find the band in three different styles: stainless steel in silver or black, and titanium in gray. It features a nearly invisible quick-release clasp on the top link, allowing you to open it with just one move. You can adjust the length by adding or removing links with the included tool. The band weighs between 60 and 100 grams, depending on its material and length, which is somewhat heavy and will feel even heavier when you attach two watches. If you prefer, you can swap out the second watch for a regular clasp.

    Pricing and Compatibility

    You can purchase the Smartlet One directly from the manufacturer’s online store. The price ranges from $416 to $713, depending on the color and finish, and this includes all taxes, fees, and free shipping. This wristband is compatible with any watches that have standard band widths from 18 mm to 24 mm, including the Apple Watch, Whoop 5.0, Samsung Galaxy Watch, Google Pixel Watch, several models from Garmin, as well as the Fitbit Charge 5 and 6. Remember to specify the exact watch model when placing your order.

    Smartlet

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  • New Whoop Advanced Labs Feature Launching Worldwide Soon

    New Whoop Advanced Labs Feature Launching Worldwide Soon

    Key Takeaways

    1. Whoop Advanced Labs will launch globally, starting with limited availability for uploading past lab results in regions like Europe, the Middle East, and Asia by late 2025.
    2. The full Advanced Labs feature, including tests for 65 biomarkers, is expected to be available worldwide by 2026.
    3. Users in the US can currently book tests through the Whoop app at over 2,000 Quest Diagnostics labs, but international provider details are not yet confirmed.
    4. Uploading past lab results is free, while Advanced Lab tests will start at $199 in the US, with discounts for multiple tests; pricing for other regions is not yet revealed.
    5. The Advanced Labs feature will be available to all Whoop wearable users, including the Whoop 5.0 model.


    Whoop Advanced Labs is set to launch globally soon. This new feature, which connects to lab test results for various biomarkers, was first introduced in the US back in September 2025.

    Global Expansion Plans

    Recently, some Whoop users shared on Reddit that they received an email from the company indicating that Advanced Labs will soon be available in areas like Europe, the Middle East, and Asia. However, it seems that the initial rollout will be somewhat limited. Whoop has indicated that, at first, users outside the US will only be able to upload their previous lab results to Advanced Labs. These results could come from tests measuring vitamin D levels or cholesterol, among other things. This feature is expected to launch later in 2025; one user on Reddit mentioned that when they inquired with Whoop’s AI assistant, it hinted at a November release.

    Features and Benefits

    The comprehensive Advanced Labs feature, which includes specialized tests for 65 different biomarkers and reports reviewed by clinicians, is slated to be available worldwide in 2026. These biomarkers encompass a variety of health indicators, such as hormones, heart health, sleep quality, inflammation, nutrients, and cognitive performance. In the US, users can currently book tests at over 2,000 Quest Diagnostics labs through the Whoop app. However, it’s still unknown which providers will be utilized in other regions. The results are designed to assist users in enhancing their health and wellness by recommending daily habits, with suggestions to retest to track their progress.

    Pricing and Availability

    While uploading past test results comes at no cost, the Advanced Lab tests begin at $199 in the US, with discounts available for purchasing multiple tests. Pricing details for other regions have not yet been disclosed. It is uncertain when exactly the Whoop Advanced Labs upload feature will begin its global rollout and how many individuals on the waitlist will have early access. This feature should be accessible for all Whoop wearable users, including the Whoop 5.0 (currently priced at $359.00 on Amazon).

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  • Rogbid Fitness Band Launches: Affordable with 40-Day Battery Life

    Rogbid Fitness Band Launches: Affordable with 40-Day Battery Life

    Key Takeaways

    1. The Rogbid Halo Band is a lightweight, screenless fitness tracker weighing only 22 grams, designed for easy use.
    2. It monitors key health metrics including heart rate, blood oxygen levels, blood pressure, and sleep patterns, and offers various sport modes.
    3. The device features an IP68 waterproof rating and impressive battery life of up to 40 days.
    4. Priced at $49.99, the Halo Band comes with four interchangeable straps in different colors made from nylon and silicone.
    5. The Halo Band is a cost-effective alternative to competitors like Whoop, Oura Ring, and Biostrap EVO, focusing on essential health metrics without subscription fees.


    Rogbid has recently launched its latest screenless fitness tracker named the Halo Band. This lightweight device weighs a mere 22 grams (including the silicone strap and head) and features a sleek design. It keeps a constant watch on heart rate, blood oxygen levels (SpO2), blood pressure, and sleep patterns, and offers various sport modes. The app that comes with it allows runners to track their GPS routes. With an IP68 waterproof rating, this gadget also boasts an impressive battery life of up to 40 days. The price for the Halo Band is set at $49.99, which includes four interchangeable straps made from nylon and silicone in different colors.

    Looking at the Competition

    When analyzing the Halo Band, it’s essential to compare it with other screenless fitness devices instead of typical smartwatches that come with screens. For instance, the Whoop band (particularly the Whoop 5.0) delivers in-depth workout and recovery information and can be worn on the wrist or bicep. However, it comes with a recurring subscription that can tally up to about $480 over a two-year span. There are also other well-known screenless alternatives like the Oura Ring, which is currently priced at $349 on Amazon. This ring monitors a broad range of biometric data while maintaining a compact design but usually costs around $350-400, along with a monthly subscription fee. Another option, Biostrap EVO, offers clinical-grade sensor data and long-term wellness tracking for approximately $200 without needing a subscription.

    A Cost-Effective Choice

    In contrast with these options, the Rogbid Halo Band sacrifices some advanced medical or recovery-oriented features to provide a budget-friendly price, straightforward use, and extensive battery life. This makes it a great fit for users who specifically want essential health metrics and exercise tracking without the hassle, expense, or reliance on subscriptions that many competitors have.

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  • Polar Loop: Track Health & Fitness Without Display or Subscription

    Polar Loop: Track Health & Fitness Without Display or Subscription

    Key Takeaways

    1. Smart wristbands like Whoop 5.0 and Polar Loop have no display, reducing distractions and increasing comfort and battery life.
    2. The Polar Loop is lightweight (29 grams) and has a battery life of up to eight days without a subscription for features.
    3. It tracks heart rate, activity, sleep patterns, steps, distance, and calories burned, providing insights into sleep quality.
    4. The wristband automatically detects workouts, tracks heart rate in real-time, and assesses workout intensity based on fitness level.
    5. The Polar Loop is available for pre-order at $199.99, with shipping starting on September 10, and additional colored wristbands for $29.99 each.


    Smart wristbands, like the Whoop 5.0, are gaining traction as they lack a display, which means fewer distractions compared to smartwatches. The absence of a screen also leads to greater comfort during wear and extends battery life. In this light, Polar has introduced an exciting new competitor to Whoop called the Loop.

    Lightweight and Feature-Rich

    The Polar Loop weighs only 29 grams and boasts a battery life of up to eight days. Notably, all features are accessible without the need for a subscription. This wristband continuously tracks heart rate, activity, and sleep patterns, offering insights on how restful your last night’s sleep was. Additionally, it counts steps, as well as calculates distance and calories burned.

    Smart Workout Detection

    Polar Loop is crafted to automatically recognize when a workout begins, track your heart rate in real-time, and assess the intensity of the workout according to your fitness level. Users can easily access all collected data through the associated smartphone app. Polar claims that the wristband can endure temperatures ranging from -20°C to +50°C, is water-resistant, and can even be used while swimming.

    Pre-Order Now!

    You can pre-order the Polar Loop from the manufacturer’s online store for $199.99, with shipping anticipated to start on September 10. There are also additional wristbands in various colors available for only $29.99 each.

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  • Polar Hints at Whoop Alternative as Garmin Sleep Tracker Rumors Rise

    Polar Hints at Whoop Alternative as Garmin Sleep Tracker Rumors Rise

    Key Takeaways

    1. Garmin is rumored to be developing a competitor to Whoop 5.0, but it appears to be just an arm-worn device.
    2. Polar is making significant advancements to launch a true competitor to Whoop fitness trackers.
    3. Polar released a ‘pre-teaser’ image showcasing the strap of its upcoming wearable, which has a fabric texture similar to Whoop 5.0.
    4. The new Polar device might not have a display, as indicated by the removal of the word ‘watch’ in the teaser.
    5. Polar is expected to announce the new device globally on September 3, potentially featuring the latest Elixir sensor.


    In the past few weeks, rumors have surfaced that Garmin might be working on a competitor to the Whoop 5.0, following the launch of the Forerunner 570 and Forerunner 970 this spring. Sadly, it now looks like this potential product is just a device worn on the arm. On the other hand, Polar seems to be making strong moves to present a real competitor to the popular Whoop fitness trackers.

    Teaser Image Release

    Currently, Polar has uploaded one image on its website that it calls a ‘pre-teaser’. From what we understand, Polar hasn’t yet showcased the main part of its upcoming wearable. The image mainly highlights the strap, which appears to have a fabric texture akin to that of the Whoop 5.0. Notably, it seems that Polar’s device uses loop systems instead of velcro, unlike the bands offered by Whoop.

    Display-less Design

    Interestingly, Polar’s decision to cross out the word ‘watch’ in its teaser hints that the new device might lack a screen entirely. While the company hasn’t disclosed any details about the specifications yet, sources like the5krunner anticipate that Polar is likely to include its latest Elixir sensor, which is also part of the Polar Grit X2 series (currently priced at $884.95 on Amazon). Polar is set to fully announce the new device on September 3 worldwide.

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