A traditional watch can look stylish, but it usually cannot track your heart rate, sleep quality or daily activity. Meanwhile, smartwatches often force users to sacrifice their favorite timepieces for health-tracking features. Now, a new wearable called HIYD aims to solve that problem.
HIYD is a tiny health-tracking sensor that attaches to the back of a traditional watch. It lets users monitor fitness and health metrics without replacing their favorite timepiece with a smartwatch. The device is particularly interesting for watch enthusiasts who want modern tracking features without changing their personal style.
The company plans to launch its next-generation HIYD sensor on Kickstarter in November 2026. However, the product is not yet available as a regular retail purchase.
HIYD Health Tracker Overview
HIYD is a compact wearable designed to add health-tracking capabilities to traditional watches. Instead of replacing the watch, it sits discreetly behind the watch case and collects biometric data.
The device uses a special microsuction attachment system. As a result, it does not require glue, magnets or adhesive strips to stay in place. Users can also move it between compatible watches.
The sensor connects to a smartphone app on iOS or Android. Through the app, users can view health metrics, track activity and review sleep information.
Another major advantage is its subscription-free approach. According to the company, users can access its tracking features without paying a recurring monthly fee.
HIYD Health Tracker Specifications
| Specification | Details |
|---|---|
| Product type | Wearable health-tracking sensor |
| Thickness | Approximately 2.7mm |
| Weight | 7 grams |
| Diameter | Approximately 32mm |
| Attachment | Microsuction technology |
| Heart rate | Supported |
| Heart-rate variability | Supported |
| Sleep tracking | Supported |
| Activity tracking | Steps, movement and workouts |
| Additional tracking | Blood oxygen and skin temperature |
| Smartphone compatibility | iOS and Android |
| Battery life | Approximately 4 days |
| Water resistance | IP67 listed for Gen 2 |
| Connectivity | Bluetooth Low Energy |
| Subscription | No monthly fee advertised |
| Launch platform | Kickstarter |
| Expected launch | November 2026 |
Specifications are based on the company’s current Gen 2 reservation information. Final specifications may change before the crowdfunding campaign.
How Does HIYD Work?
The most interesting part of HIYD is its attachment system.
Traditional fitness trackers use a wristband, while smart rings require users to wear another accessory. HIYD takes a different approach by placing the sensor behind a compatible watch.
Its microsuction surface uses tiny structures that create a secure grip against the watch caseback. This design avoids traditional adhesive and magnetic attachment methods.
Users can attach the sensor, wear their watch normally and sync the collected data with the companion app. They can also move the device between compatible watches when changing their style.
However, fit may depend on the shape and surface of the watch caseback. Buyers should check compatibility before purchasing.
Health and Fitness Tracking Features
HIYD focuses on several everyday health and fitness metrics.
- Heart-rate monitoring: Tracks heart-rate information throughout the day.
- Sleep tracking: Records sleep-related data and provides insights through the companion app.
- Heart-rate variability: Helps users review changes in HRV, a metric commonly used to understand recovery and physiological stress.
- Activity tracking: Records steps, movement and workouts.
- Blood oxygen monitoring: The Gen 2 reservation specifications list oxygen-saturation tracking.
- Skin temperature: The listed sensor package includes skin-temperature measurements.
- AI-powered insights: The company plans to use software to help users understand their sleep, meals, workouts and recovery patterns.
These features could make HIYD appealing to people who want a more complete picture of their daily activity without wearing a conventional fitness band.
However, health-tracking estimates are not a substitute for professional medical equipment or medical advice.
Design and Build Quality
HIYD’s biggest selling point is its discreet design.
The sensor measures approximately 2.7mm thick and weighs just 7 grams, according to the company’s main product page. Its compact construction allows it to sit behind a compatible watch without changing the watch’s familiar appearance.
The microsuction attachment also avoids glue and magnets. This is especially relevant for owners of mechanical watches who want to preserve their timepieces and avoid magnetic attachment systems.
The company also advertises an IP67 water-resistance rating for the Gen 2 device. Users should still follow the final product’s care instructions and avoid assuming that every water-related activity is supported.
HIYD App and AI Features
The companion app brings the collected information together in one place. Users can review activity, heart rate, sleep and other supported metrics through their smartphone.
HIYD also plans AI-assisted insights that connect daily habits with health and recovery trends. For example, the software could help users identify patterns between workout schedules, meal timing and sleep quality.
The company has also described nutrition-tracking features in its app plans. These features aim to make health information easier to understand instead of simply presenting a collection of numbers.
The quality of these insights will depend on the accuracy of the sensor, software development and the information available to the app. Their real-world performance will need to be evaluated after broader availability.
HIYD Health Tracker Price in Nepal
HIYD has not announced an official price for Nepal.
The company’s website lists an advertised $199 early-bird price, while its Gen 2 reservation page describes a $149 super-early-bird Kickstarter reward for eligible reservations. The reservation page also lists a $249 public campaign price and a $299 retail price.
The $10 reservation deposit is refundable, but it is not a product purchase or a credit toward the Kickstarter pledge. The discounted reward is subject to the company’s campaign conditions.
For reference, $199 is roughly NPR 27,000 before shipping, taxes and import costs. This is only a currency-conversion estimate, not an official Nepal retail price.
The final cost for Nepali buyers will depend on the campaign price, international shipping, applicable taxes and local availability.
HIYD Health Tracker Availability
HIYD plans to launch its Gen 2 sensor on Kickstarter in November 2026. The company is currently collecting early-access sign-ups and reservations through its official website.
The exact shipping schedule and final product specifications should be confirmed during the crowdfunding campaign. Kickstarter participation also differs from buying a finished product from a regular retailer.
Interested buyers can follow updates through the official HIYD website.
There is currently no confirmed official launch date or authorized retail availability for Nepal.
Frequently Asked Questions
HIYD is a compact biometric sensor designed to attach to the back of a compatible traditional watch, adding health and fitness tracking without requiring a smartwatch.
HIYD is designed for compatible traditional watches. Its microsuction system attaches to the caseback without glue or magnets, although compatibility may depend on the watch’s design and surface.
The advertised features include heart rate, heart-rate variability, sleep, steps, activity and workouts. Gen 2 specifications also list blood oxygen and skin-temperature tracking.
The company advertises HIYD without a monthly subscription fee.
The official Nepal price has not been announced. The advertised $199 early-bird price converts to roughly NPR 27,000 before shipping, taxes and import costs.
HIYD Gen 2 is planned for a Kickstarter launch in November 2026. The final shipping schedule should be confirmed through the campaign.
There is no confirmed official retail availability in Nepal yet. Interested buyers should check the company’s official website for launch and shipping updates.
Final Verdict
HIYD offers an interesting alternative to conventional smartwatches and fitness bands. Its compact design, microsuction attachment and subscription-free approach could appeal to people who love traditional watches but still want access to health and activity data.
The concept stands out because it adds technology without asking users to change their everyday style. However, buyers should wait for final specifications, independent performance testing and confirmed shipping details before making a purchase.
If HIYD delivers on its promises, it could offer a fresh approach to wearable technology for watch enthusiasts.
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