Fitness AI Connector alternative: garmlink compared
Both let ChatGPT and Claude read your Garmin data. Fitness AI Connector goes through Garmin’s official Health API, but your data starts on the day you connect and new data can take up to 24 hours to arrive. garmlink signs in to Garmin as you instead, which is not an official partnership, and syncs your past history ahead of time, so an assistant can also answer about the months before you connected.
garmlink wrote this page, so it also says when Fitness AI Connector is the better choice. Fitness AI Connector’s column sums up its own public page as read on the date above; prices and features change, so check theirs before you choose.
Side by side
Fitness AI Connector
- Price
- A free licence, and a paid Basic licence.
- Assistants
- ChatGPT and Claude.
- Access to Garmin
- Garmin’s official Health API, through Garmin’s own sign-in page.
- Writes to Garmin
- Not that its page says: it describes reading.
- Worth knowing
- Your data starts on the day you connect, with no earlier history, and new data can take up to 24 hours to arrive.
garmlink
- Price
- Free.
- Assistants
- Claude (Free plan included), ChatGPT (developer mode, on paid plans), Perplexity (Pro and above), Le Chat and Grok; Gemini through custom apps in the Gemini app (US for now) or the Gemini CLI; and code tools such as Cursor, Codex, Claude Code and VS Code.
- Access to Garmin
- Your Garmin sign-in, used once: the password is never stored, and the access tokens are kept encrypted. Not a Garmin partner.
- Writes to Garmin
- No. It never posts to Garmin and never modifies your account.
- Worth knowing
- Your past data is synced ahead of time and kept up to date, so an assistant can answer over weeks and months, not only about today.
Choose Fitness AI Connector if
- You want Garmin’s official access, through Garmin’s own sign-in page, rather than a service that signs in as you.
- Data from the day you connect onwards is enough for your questions.
- You only use ChatGPT or Claude.
Choose garmlink if
- You want answers over the weeks and months before you connected, not only from that day on.
- You use another assistant: Perplexity, Le Chat, Grok, Gemini, or a code tool such as Cursor or VS Code.
- You want a written setup guide for your assistant: garmlink has one for each of twelve assistants and code tools.
Can you use both?
Usually, yes. An assistant can hold several connectors at once, and garmlink only reads: it changes nothing in your Garmin account, so you can keep Fitness AI Connector linked while you try it and compare the answers. The exception is Claude’s Free plan, which allows a single custom connector: there you swap one for the other, or move to a paid plan.
Every other way to link Garmin to an assistant, with where garmlink is weaker: Every way to connect Garmin. Going hosted? Pick your assistant and connect it.