“This is a DIY Arduino smart watch, works on Bluetooth connectivity and is chargeable - tested for 6 Hours performance on one charge.
This is a DIY Arduino Bluetooth smartwatch that I made after going through lots of previously made similar projects on the internet. I added features like saving notes in watch, getting SMS and phone number on watch, find my phone feature and calculator. It is chargeable, and as per test with a 3.7V, 500mAh lipo battery it runs for 6 Hours with a charging time of approximate 30 minutes. The watch is made to shut down the screen after 15 seconds inactivity hence 6 Hours is the maximum time of operation.”