Compatible Devices

Works with the wearable you already own.

Laso reads data from Apple Health, which means any wearable or health device that syncs to Apple Health works with Laso. No proprietary hardware. No extra accessories. Just the device on your wrist (or finger) and your iPhone.

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How the sync works

Apple Health acts as a central hub for health data on iPhone. Most wearables have companion apps that write heart rate, sleep, workouts, and other metrics directly into Apple Health. Laso reads from that hub.

1. Your wearable collects data

Heart rate, sleep stages, workouts, steps, and more are recorded by your device throughout the day and night.

2. Companion app syncs to Apple Health

Your device's companion app (Garmin Connect, Oura, WHOOP, etc.) writes health samples into Apple Health automatically.

3. Laso reads and analyzes

Laso pulls the data from Apple Health, builds your personal baselines, and generates your recovery score, strain, sleep analysis, and more.

Supported devices

If it syncs to Apple Health, it works with Laso. Here are the most popular devices organized by category.

Smartwatches

Apple Watch Garmin Polar COROS Suunto Huawei Watch Amazfit Xiaomi Smart Band TicWatch Casio G-Shock TAG Heuer Noise boAt Fire-Boltt

Smart Rings

Oura Ring Ultrahuman Ring Air RingConn Circular Ring

Performance

WHOOP Wahoo Biostrap Myzone Peloton

Health Devices

Withings Omron Renpho Dexcom Eight Sleep

What metrics each device provides

Apple Watch provides the most complete data because it writes natively to Apple Health. Other devices vary depending on what their companion app shares. Laso adapts to whatever data is available.

Metric Apple Watch Oura / Rings Garmin / Polar WHOOP
Heart rate Yes Yes Yes Yes
HRV Yes Yes Varies Yes
Sleep stages Yes Yes Varies Yes
Respiratory rate Yes Yes Limited Yes
Blood oxygen (SpO2) Yes Yes Varies Yes
Workouts Yes Limited Yes Yes
Steps and distance Yes Yes Yes Limited

"Varies" means the companion app may or may not write this data to Apple Health depending on the model and app version.

No wearable? iPhone works too.

Your iPhone has built-in sensors that track steps, walking distance, flights climbed, and general activity levels without any wearable at all. While a wearable gives Laso access to heart rate, HRV, and sleep data for the fullest analysis, iPhone on its own still provides useful activity and mobility insights. You can always add a wearable later and Laso will automatically pick up the additional data.

Frequently asked questions

What devices work with Laso?
Laso works with any device that syncs data to Apple Health on iPhone. This includes Apple Watch, Oura Ring, Garmin, WHOOP, Polar, COROS, Suunto, Withings, Dexcom, Ultrahuman Ring Air, RingConn, Amazfit, Xiaomi Smart Band, Huawei Watch, TicWatch, Biostrap, Myzone, Peloton, Omron, Renpho, Eight Sleep, and many more. If your wearable has a companion app that writes health data to Apple Health, Laso can read it.
Do I need an Apple Watch to use Laso?
No. Apple Watch provides the most complete data set because it writes natively to Apple Health, but Laso works with any wearable that syncs to Apple Health through a companion app. You can also use Laso with just an iPhone, which tracks steps, distance, and basic activity through its built-in sensors.
How do I connect my Garmin, Oura, or WHOOP to Laso?
Open your wearable's companion app (Garmin Connect, Oura, WHOOP, etc.) and enable Apple Health integration in its settings. Once the companion app writes data to Apple Health, Laso automatically reads it. There is no separate pairing step inside Laso. Just grant Laso permission to read Apple Health data and your metrics will appear.
What if my device is not listed?
If your device has a companion iOS app that can write to Apple Health, it will very likely work with Laso. Check your device's app settings for an Apple Health or HealthKit integration option. If you enable it and data appears in the Apple Health app, Laso will be able to read it. If your device does not support Apple Health at all, it will not work with Laso at this time.

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You already have the wearable. Laso does the rest.

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