WearablesOriginal source ↗

CAIBI ASSESSMENT

ESP32 Smartwatch

An open ESP32 smartwatch with a 3D-printed case, notifications, media controls and reprogrammable firmware.

CAIBI VERDICTBUILD FOR THE EXPERIENCE

It is compelling as an open wearable and learning platform, not as the easiest route to a polished smartwatch.

Build with AI See the build I built this

AI CAN HELP

Useful work to hand to AI

Firmware work
UI changes
Bluetooth debugging

AI CAN'T DO

The physical boundary

Assemble the small electronics cleanly enough for a wearable
Print and finish a case that fits the hardware and your wrist
Solve real battery, thickness and comfort compromises
Wear-test the finished watch and verify reliability in daily use

BUILD WITH AI

Start with the project, not a blank prompt.

The CAIBI build pack gives an AI assistant the source, the known constraints, the useful AI work and the physical boundary. It is designed to help you move faster without pretending the AI has built the thing for you.

Preview the full build brief

I want to build ESP32 Smartwatch.

Source project: https://github.com/Bellafaire/ESP32-Smart-Watch

Use the source as the authority. Do not invent parts, dimensions, prices or capabilities that are not published.

AI can help with: Firmware work, UI changes, Bluetooth debugging.
AI cannot physically do: Assemble the small electronics cleanly enough for a wearable, Print and finish a case that fits the hardware and your wrist, Solve real battery, thickness and comfort compromises, Wear-test the finished watch and verify reliability in daily use.
Tools and capabilities involved: 3D printer, Soldering.
CAIBI's main concern: Wearables punish bulk, poor battery life and rough assembly. The last 20% of mechanical and power work dominates the finished result.

Start by checking the source, confirming the current parts and build instructions, then give me a staged plan. Clearly separate source facts from your suggestions. Stop and ask me to verify anything that depends on physical fit, wiring, calibration or safety.

THE BUILD

How it actually comes together

Check the source ↗

YOU

Choose the hardware version

Use the current published hardware route rather than mixing files and firmware from older versions.

YOU

Produce the electronics

Source or fabricate the required electronics and complete the fine assembly needed for a wearable form factor.

YOU

Print and fit the case

Print the FreeCAD based enclosure and confirm screen, connector and control fit before treating the assembly as finished.

AI + YOU

Flash the firmware

Install the matching firmware and libraries. AI can help with firmware changes and dependency issues.

YOU

Pair and test

Test notifications, media controls, battery behaviour, wake functions and physical wearability with the compatible companion app.

AI + YOU

Customise carefully

Modify UI and firmware once the baseline works. On a wearable, every extra feature competes with battery life, responsiveness and enclosure space.

WHAT YOU NEED

Key components

ESP32 based watch electronics
Display and supporting components from the project hardware design
3D printed FreeCAD case
USB charging and serial connection
Android companion app for supported firmware versions

AFTER THE FIRST BUILD

Ways to take it further

Custom apps and UIDifferent firmware behaviourCase modificationsAlternative watch faces

OTHER WAYS TO GET THERE

You do not have to follow one route.

ORIGINAL BUILDFollow the creator route

Use the published source, files and instructions as the baseline.

↗AI ASSISTEDUse the CAIBI build pack

Start from the source with prompts that keep the AI inside the verified build information.

→OUTSOURCE PARTGet fabrication done for you

You do not necessarily need to own every capability. This build uses 3D printer, Soldering.

→ALTERNATIVE PROJECTImageGenCam

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MADE BY PEOPLE

Real builds belong here.

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When people submit completed builds, this section can link to their build notes, repo, printable files, shop or finished version. CAIBI does not take payment or insert itself into the sale.

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SOURCE · CAIBI · BUILDERS

What supports the verdict

SOURCEBellafaire

Source available

The watch uses an ESP32 and a 3D printed FreeCAD case.
The source describes notifications, media controls and a reprogrammable firmware platform.
The source states that only the V3 firmware is in active development and that companion app compatibility depends on firmware generation.

Open source ↗

CAIBIBUILD FOR THE EXPERIENCE

It is compelling as an open wearable and learning platform, not as the easiest route to a polished smartwatch.

Evidence: Moderate
Biggest challenge: Wearables punish bulk, poor battery life and rough assembly. The last 20% of mechanical and power work dominates the finished result.

BUILDERSNo published reports yet

Actual time, cost, changes and outcomes from reviewed builds will appear here.

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BUILT IT?

Tell us what actually happened.

Your result can improve the assessment and, if you choose, link people to your public build or listing.

What worked and what changed
Actual time and cost
Public build or repo link
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