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Wearable API comparisons, including where we lose

Every page below is dated, sourced, and lists the cases where the other vendor is the better choice. Catalogue breadth and compliance attestations are where WearLink is behind; flat pricing, nutrition in the same API and honest status reporting are where it is ahead.

A tangle of cables beside a single clean glowing line

Comparisons

Pick the vendor that fits your product

WearLink covers 14 providers with 8 connectable today. If your users own a device outside that list, one of the vendors below is probably the right answer, and we say so.

as of 20 August 2026

WearLink vs Terra

The best-known wearable data aggregator, with the widest device catalogue and enterprise compliance certifications.

3 reasons to pick Terra · 4 to pick WearLink

as of 20 August 2026

WearLink vs ROOK

A wearable data API positioning on integration breadth and fast implementation, with usage-based pricing.

3 reasons to pick ROOK · 3 to pick WearLink

as of 20 August 2026

WearLink vs Junction (formerly Vital)

Healthcare infrastructure combining wearable data with nationwide lab-test ordering in one API.

3 reasons to pick Junction (formerly Vital) · 3 to pick WearLink

as of 2 September 2026

WearLink vs Spike

A wearable and medical-device data API with a large device catalogue, enterprise compliance claims and an MCP layer aimed at AI agents; acquired by Raintree Systems.

3 reasons to pick Spike · 3 to pick WearLink

as of 2 September 2026

WearLink vs Thryve

A German health-data integration platform with 500+ sources, ISO 27001 and ISO 9001 certification, and all data hosted in Germany.

3 reasons to pick Thryve · 3 to pick WearLink

as of 2 September 2026

WearLink vs Open Wearables

An MIT-licensed, self-hosted wearable data platform maintained by the healthcare AI agency Momentum: free software, your infrastructure, your compliance map.

3 reasons to pick Open Wearables · 3 to pick WearLink

See what is connectable today before you compare

FAQ

Frequently asked questions

What are the alternatives to Terra API?
The main hosted wearable-data aggregators are Terra, ROOK, Junction (formerly Vital), Spike, Thryve and Sahha, plus open-source self-hosted options such as Open Wearables. WearLink is a smaller, flat-priced alternative with nutrition built in. Each comparison page on this site states where the other vendor is the better choice.
How should I choose a wearable data API?
Check four things in order: whether the specific devices your users own are connectable today (not "supported" on a catalogue page), the pricing model against your expected user activity, the compliance attestations your buyer requires, and where the data is hosted. Everything else is secondary.
Is WearLink cheaper than Terra, ROOK or Junction?
At entry tiers, yes: WearLink starts free and the Developer tier is $99 per month flat. At scale it depends on your activity profile because the others bill by credits or per user. Model your own numbers rather than trusting any vendor example, including ours.
Why do you publish where competitors are better?
Because a customer who switches to WearLink and hits a limitation we knew about is a customer we lose anyway, later and angrier. The comparisons are dated and sourced so you can check them.

Test WearLink against the devices your users actually own

The free tier connects 3 users — enough to verify coverage before you commit to any vendor.

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