What are the top 10 wearable APIs to consider in 2026?

The top wearable APIs to consider in 2026 are ROOK, Google Health Connect, Apple HealthKit, Garmin Health, the WHOOP API, Polar AccessLink, Samsung Health, the Withings API, the Oura API and Suunto. Single-ecosystem APIs fit products whose users share one device brand. ROOK fits products whose users rely on different wearables, because it connects 72 data sources and more than 500 devices through one integration with standardized data.

Wearables are part of everyday life for millions of people. Watches, rings and other devices collect data on activity, sleep, heart rate, recovery and other signals that give context about users’ behavior and health.

For companies, the challenge is turning wearable data into information they can use in their products.

Wearable APIs solve that problem.

Some wearable APIs connect directly with a specific device or ecosystem. Others, like ROOK, work with multiple data sources through a single integration.

The right wearable API depends on what you want to build, which devices your users rely on, and how much work your team wants to spend maintaining each connection.

Here are ten wearable APIs to consider in 2026.

ROOK is our top choice for companies that need to integrate data from multiple wearables. While many alternatives on this list work with a single ecosystem, ROOK connects 72 data sources and more than 500 devices through a single integration, so your team does not treat every wearable as a separate project. ROOK aggregates and transforms data into consistent models regardless of where it comes from.

One integration: connect multiple supported sources without building every connection from scratch.

Standardized data: Work with information organized into consistent data models.

Less maintenance: Reduce the work involved in managing different integrations.

More choice for your users: Support different wearable ecosystems within your product.

More focus on your product: Spend more time creating experiences with the data and less time connecting it.

Integration maintenance matters more as a company grows.

If your product works with one source today but your users later need Garmin Connect, Oura, WHOOP, Polar or other devices, maintaining every integration separately becomes a burden for your team.

ROOK is designed to simplify that process; the guide on how to integrate data from multiple wearables explains the approach.

ROOK is a strong option for products that need to:

Best for: Digital health, fitness, insurance, corporate wellness, research, and other data-driven products that need to work with wearable data at scale.

Google Health Connect makes it easier for Android apps to share health and fitness data with user permission.

Rather than belonging to a single wearable brand, it works as a connection point between compatible apps and services within Android.

This can allow an application to work with different types of information, such as activity, sleep, or heart rate data, when that information is available through Health Connect.

Part of the Android ecosystem

Supports different types of health and fitness data

Users remain in control of permissions

Can bring together information from multiple compatible apps

Health Connect does not necessarily replace integrations with every wearable brand. The data available depends on the devices and applications that support and share information with Health Connect.

Best for: Android applications that want to access health and fitness data available through Health Connect.

Apple HealthKit allows applications to work with health and fitness data available within the Apple ecosystem. The information can come from Apple Watch, iPhone, and other apps or devices connected to Apple Health, always with the user’s authorization.

Deep integration with the Apple ecosystem

Access to a broad range of health data categories

User-controlled permissions

Especially relevant for iOS applications

HealthKit is closely tied to the Apple ecosystem. If your product also needs to support users on other platforms or wearable brands, you will likely need additional integration options.

Best for: Applications primarily focused on Apple Watch, iPhone, and Apple Health users.

Garmin is one of the most recognized brands in sports, physical activity, and performance. Its developer solutions allow authorized companies to work with information from Garmin devices, which can include data related to activity, sleep, workouts, and other metrics.

Strong presence in sports and training

Relevant activity and performance data

Broad device ecosystem

A good option for products serving active users

If your product needs to support other brands, Garmin will be one of several integrations your team needs to consider.

Best for: Sports, physical activity, and performance products with a significant Garmin user base.

WHOOP has positioned itself strongly around sleep, recovery, strain, and performance. Its API allows authorized applications to work with information generated within the WHOOP ecosystem.

Strong focus on sleep and recovery

Relevant information for training

A good fit for performance-related experiences

Recognized ecosystem among highly active users

The data is tied to WHOOP users. If you want to provide a similar experience to people using other devices, you will need to add more data sources.

Best for: Applications focused on recovery, sleep, training, and performance.

Polar has a long history in sports technology, training, and heart rate monitoring. Polar AccessLink allows authorized applications to work with data from Polar devices.

Strong focus on training and activity

Established brand in sports

Useful information for performance products

Especially relevant for Polar device users

Like other manufacturer APIs, it is primarily designed around its own ecosystem.

Best for: Sports and training products serving Polar users.

Samsung has a significant ecosystem of connected devices, particularly through Galaxy Watch and Samsung Health. Its developer tools allow compatible experiences to incorporate different types of health and activity information.

Strong presence within the Android ecosystem

Relevant for Galaxy Watch users

Multiple categories of health and activity data

Integration with Samsung products and services

It is particularly useful for products with Samsung users, but it does not represent the full range of Android wearables available in the market.

Best for: Applications with a significant audience of Samsung and Galaxy Watch users.

Withings offers something different within the connected device market. In addition to wearables, its ecosystem includes products such as scales, blood pressure monitors, and other devices that generate health-related data.

Multiple types of connected devices

Weight and body composition data

Activity and sleep information

Useful for products that need more than traditional smartwatch data

Its main value is within the Withings ecosystem. To work with other brands, you will need to expand your integration strategy.

Best for: Products that want to combine activity information with body measurements and other data from connected devices.

Oura Ring is especially known for its focus on sleep, recovery, activity, and readiness. The Oura API allows authorized applications to use information from the Oura ecosystem.

Useful for understanding trends over time

An alternative to the traditional smartwatch format

Relevant for products focused on rest and behavior

Its usefulness depends on users being part of the Oura ecosystem. To reach a broader audience using different devices, additional sources will be needed.

Best for: Products focused on sleep, recovery, and health trends.

Suunto has a strong presence in sports, training, and outdoor activities. Its developer tools allow compatible services to work with information from Suunto devices.

Strong focus on sports and outdoor activities

Relevant training data

Established ecosystem among athletes and endurance sports users

Useful for activity and performance products

Suunto is especially relevant when your users already rely on its devices. For a more diverse audience, you will need to combine it with other data sources.

Best for: Sports and performance applications serving Suunto users.

ROOK differs from single-ecosystem APIs in the problem it solves. If your product is focused on one ecosystem, a direct integration with Apple, Garmin, Oura, WHOOP or another provider may be enough.

But when your users rely on different devices, maintaining a separate integration for each source can quickly increase the workload for your team. ROOK simplifies this process by connecting multiple wearable data sources through a single integration and transforming the information into consistent, usable data.

When choosing a wearable API, consider three main factors:

Which devices your users rely on: If they use different wearables, a multi-source solution can offer more flexibility.

What data your product actually needs: Focus on the information that brings real value to the experience.

How much maintenance you want to manage: Multiple direct integrations also mean more changes and ongoing maintenance over time.

It is also important to provide a clear consent experience so users understand what data they are sharing and how it is used.

The best wearable API depends on your product. Apple HealthKit, Google Health Connect, Garmin, WHOOP, Polar, Oura and other platforms are good choices when you work with a specific ecosystem.

However, if your company needs multiple wearable data sources, ROOK is our top choice for 2026.

With ROOK, teams can:

Devices and user preferences keep changing, so a wearable data strategy should not depend on a single ecosystem.

ROOK helps companies connect, standardize and act on data from different wearable sources through a single integration. For a developer-focused view, read the best wearable APIs for developers.

To see ROOK’s data models, try the ROOK sandbox portal, or talk to the ROOK team.