Wear OS
codai for Wear OS is a standalone AI assistant for your watch. Install it from Google Play, sign in with a code or from your phone, ask by voice, follow sessions, approve scheduled tasks and record voice notes.
codai for Wear OS is a standalone watch app: it talks to codai directly over Wi-Fi or LTE, so it keeps working when your phone is out of reach. Wear OS 3 or newer (Galaxy Watch 4 and later, Pixel Watch, and other Wear OS 3+ watches). It uses the same codai model and the same account as every other client.
Install
The watch app ships under the same Play listing as the phone (ro.codai.phone), on its own Wear OS track. Open the Play Store on the watch and search for codai, or open codai on Google Play on your phone and pick your watch under Install on more devices. Play updates it with the phone app.
Sign in
You never type a password on the watch.
- With a code: the watch shows a short code and an address. On any device, open
auth.codai.ro/device, sign in and enter the code. The watch signs in by itself within a few seconds. - Open on phone: tap Open on phone. Your paired Android phone opens the approval screen of the codai phone app — tap Approve. This needs the codai phone app signed in on that phone.
Each watch gets its own key, named after the watch model in Account → Devices, where you can revoke it at any time.
Voice & chat
Tap Ask codai and speak, or switch to the keyboard. The answer streams in as it is written; scroll with the crown or the bezel. New chat starts over. Dictation uses the watch's own speech recognizer — codai receives only the recognised text, never audio.
Sessions
The Sessions screen lists your running codai sessions on your desktop and your phone, with their state.
- View: open a session to read its latest steps and the current answer.
- Control: pause, resume or stop it from the watch.
- Answer: when a session stops for a question (an ask card), answer it with the offered choices or by voice.
- Stop: stopping from the watch is the same as stopping on the device that runs it — the session ends cleanly and keeps its history.
Notifications
When a session needs you or finishes, the watch shows a short notification. Answer an ask straight from the notification, or tap it to open the session. Notifications follow the watch's Do Not Disturb and bedtime modes.
Tile, complication and assistant
- Tile: swipe to your tiles, + → codai. One tap starts a question.
- Complication: long-press the watch face → Customize → a complication slot → codai.
- Assistant shortcut (Galaxy Watch): Settings → Advanced features → Customize keys → Double press → codai. If your watch offers it, you can also make codai the assistant: Settings → Apps → Default apps → Digital assistant → codai.
Battery saver
Settings → Battery saver keeps the watch quiet: sessions refresh only while you look at them, there is no background polling, and animations are reduced. Notifications still arrive — they are pushed, not polled.
Settings
Battery saver, notification preferences, language (follows the watch), the signed-in account, the app version, and Sign out. Signing out revokes the watch's key on the server and deletes it from the watch.
Privacy
The watch stores only your codai key (encrypted with a key held in the watch's secure hardware) and a random device id; nothing is included in cloud backups. It sends your prompts and session actions to ai.codai.ro, and a push token so sessions can notify you. No location, contacts, health or sensor data. See the privacy policy.
Troubleshooting
| Symptom | Fix |
|---|---|
| "The code expired" | Tap Retry for a new code — codes are valid for a few minutes. |
| "Phone not reachable" after Open on phone | The phone is not paired or the codai phone app is not signed in. Use the code instead. |
| No sessions listed | Sessions appear only while a codai desktop or phone app runs them and is online with the same account. |
| No notifications | Check Settings → Notifications → codai on the watch, Do Not Disturb, and that battery saver in the system is not blocking the app. |
| Sideload fails with a signature error | A debug build is installed — uninstall codai from the watch, then install again. |
Last updated:
Android
codai for Android is an AI assistant and agent for your phone. Install it from Google Play or as an APK, sign in, grant permissions, record and transcribe, create with Studio, schedule tasks and control your desktop.
VS Code
The codai extension for VS Code mirrors your GitHub Copilot Chat sessions to your watch, phone and desktop, so you can approve tools and answer questions from anywhere. Plus @codai in chat.