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sqfmi/Watchy

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Watchy - An Open Source E-Ink Smartwatch observed · 2026-09-29

github.com/sqfmi/Watchy · homepage · C · MIT (permissive) observed · 2026-09-29

Health v2 · maintenance only

36/100

  • Activity 29
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2538
  • days_rel: 433
  • days_push: 428
  • n_releases_24m: 1

Full methodology

Adoption not part of the score

2840 stars · 427 forks observed · 2026-09-29

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Watchy is a fully open-source E-Ink smartwatch built on ESP32, accompanied by an Arduino library for developing custom watch faces and firmware. It combines open hardware design with a C/C++ software library for the Arduino ecosystem.

Use cases

  • build a custom e-ink smartwatch
  • develop custom watch faces for Watchy
  • program an ESP32 wearable with Arduino
  • create a low-power e-paper display project
  • experiment with BLE-connected wearable firmware
  • learn embedded development on open-source hardware

When to choose

  • you want a hackable, fully open-source smartwatch platform
  • you prefer Arduino-based ESP32 development for wearables
  • you need an ultra-low-power e-paper display device
  • you want to customize watch faces and watch firmware yourself

When to avoid

  • you need a polished consumer smartwatch with app ecosystem out of the box
  • you require color displays or high-refresh-rate screens
  • you want a turnkey wearable without writing or flashing firmware

Facets

library · maturity active

embedded iot graphics iot embedded-systems hardware developer-tools embedded iot e-ink smartwatch esp32 arduino-library open-source-hardware bluetooth-low-energy e-paper

2 sources

Member repositories

RepositoryRoleHealth v2
sqfmi/Watchymain36

For agents

markdown · JSON · MCP: product_card(name="sqfmi/Watchy")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem