4 layers46.8 × 34.8 mm
SmartWatch V4
Bellafaire/ESP32-Smart-Watch
An open source smartwatch based on the ESP32 compatible with the Arduino IDE.
74 parts258MIT
Wearables
330 boards330 open-source wearables boards from 219 GitHub repositories, each designed in KiCad and read from its files: its size, layers, parts, README and project.
They have a median size of 45 × 33 mm and most often 2 copper layers (62 %). The parts their repositories use most are the MAX30102, TP4056, USBLC6-2SC6, MBR0530 and DS3231MZ/V+.
Parts they use most
- 4 layers100 × 70 mm
ZSWatch Watch DevKit
ZSWatch/Watch-DevKit-HW
The hardware repo for the ZSWatch Development Kit.
132 parts188GPL-3.0 - 4 layers33.8 × 38 mm
- 4 layers108.7 × 55.1 mm
- 4 layers25.4 × 12.7 mm
Morphwatch
ccadic/The603-200
One of the most strange Vintage Connected Watch project - 192 LED and ESP32
211 parts110Apache-2.0 - 4 layers16.5 × 10.9 mm
- 2 layers62.7 × 44.4 mm
DRM Watch v3
drfailov/DRM_Watch_v3
DRM Watch 3 - Наручний годинник з дисплеєм SHARP Memory LCD
116 parts92GPL-3.0 - 2 layers51.6 × 23.9 mm
Zero Palm V1
molanocortes/takto-one
Open-source hand exoskeleton that reads twelve finger joints with magnetic encoders and drives them through tendons. Full build (TAKTO ONE) or sensing-only (TAKTO Lite).
56 parts83 - 4 layers28.7 × 27 mm
Neurband c
jlcjak/neurband
Open, minimal sEMG wristband like the Meta Neural Band: 8-ch ADS1298 + nRF52832 BLE, dry gold electrodes on a flex, 3D-printed band. KiCad, FreeCAD, Zephyr, Python, simulations.
70 parts46 - 2 layers56 × 56 mm
Pps watch
idlehandsdev/pps-watch
An extremely accurate watch that doesn't tell time.
39 parts42AGPL-3.0 - 2 layers67.8 × 55 mm
- 4 layers
Watch
BenjaminSoelberg/elektronika-1
A replacement module for the USSR vintage LED watch Elektronika-1 anno 1978
19 parts30GPL-3.0 - 6 layers42.6 × 42.6 mm
Project OAK MAIN BRD V0
0101shift/Project_OAK
All design files, source code, and documentation for Project OAK, a digital watch inspired by mechanical complications.
145 parts29MIT - 4 layers50.3 × 33 mm
- 2 layers
- 4 layers33 × 65.5 mm
OM FlexGrid Rigid PCB
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
65 parts19CERN-OHL-S-2.0 - 4 layers34.5 × 39 mm
- 2 layers36.4 × 29.4 mm
Kicad Smart Watch
AFLProjects/DIY-Smart-Watch
DIY Smart Watch with ATMEGA32U4 , ST7789 SPI display and RV3028-C7 Extreme Low Power RTC Module
63 parts12 - 2 layers19.8 × 15.1 mm
- 2 layers32 × 24.8 mm
- 2 layers14 × 36 mm
- 2 layers44.8 × 36 mm
Panel
jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware
68 parts6 - 4 layers28 × 34.7 mm
Wearable
theheraldproject/herald-hardware
Permissively licensed opensource hardware designs for Herald powered wearables and beacons. Supports digital contact tracing and other eHealth approaches.
82 parts6 - 2 layers34.4 × 215.2 mm
Smartwatch
DasBasti/SchmartWatch_Hardware
Smart watch built from only electronic components
104 parts5BSD-2-Clause
Questions
Where can I find open-source wearables boards?
This page lists 330, from 219 repositories on GitHub, each read from its KiCad files with links to the original repository; PCBKit opens any of them in the browser.
What parts are most common on wearables boards?
The MAX30102, TP4056, USBLC6-2SC6, MBR0530 and DS3231MZ/V+ appear in the most repositories here; each links to its symbol, footprint and the boards that use it.
How big is a typical wearables board?
The median is 45 × 33 mm, most often with 2 copper layers (62 %).