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I turned my smartwatch into my own 'Feishu Recording Bean'

Originally I wanted to buy portable AI devices like the Feishu Recording Bean or OPPO Heart Ball. Then I thought: I already have a smartwatch. Can I use it instead? So I followed Codex through our chat and built a small tool called 'Wanji'.

Summary

Review the results before exploring further

I originally wanted to buy portable AI devices like the Feishu Voice Bean or OPPO Heart Ball, but then thought: I already have a smartwatch. Can I use it instead? So I followed Codex through our chat and built a small tool called 'Wanji': lift your wrist to record when needed, with pause and screen-off recording support; upload recordings directly to your computer via mobile hotspot upon leaving home; automatically convert audio to text and distinguish speakers. The subsequent analysis and case study can be handled by my existing Hermes tool. I encountered several pitfalls along the way, such as 'upload' being misrecognized as 'board up', and buttons behaving unexpectedly.

Our Take

Three things to consider about this case

Why it matters
First, run a small, verifiable task, recording the outcome, manual modifications, and maintenance effort.
Who it suits
Suitable for reference by those who already have similar needs and can verify effectiveness through small tasks.
What to check first
The achievements mentioned in the summary belong to the author's self-report; distinguish between revenue and profit, and consider costs, man-hours, and reproduction conditions.
Our Suggestions / Try This
Who it suits
Independent developers and those needing to improve workflows
What to try first
Select a small task with clear boundaries and create a minimum viable version that can be handed over for others to try.
What to measure
Record task completion rate, number of manual corrections, and whether users reuse the service.
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What should you ask before trying this?

  • What specific need does this practice solve for you?
  • How should the minimum viable test be accepted, and how much time needs to be invested?
  • Which steps still require human processing and continuous maintenance?
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