Human:Activity tracker - Activity tracker - Walking, running, biking and Calorie tracking

wasp-os - Firmware for smart watches based on the nRF52 family of microcontrollers (including Pine64 PineTime)

Runtastic - Runtastic offers a series of fitness apps that can be used to track your running, walking, hiking, and cycling, as well as many other fitness routines. Read more about Runtastic.

Wear Gesture Launcher - Wear Gesture Launcher – Wear OS – Wear Launcher that lets you forget about swiping that long of small icons, just tap, draw, and do.

Strava - The #1 app for runners and cyclists

Wear OS Center - Wear OS Center – Android Wear Apps, Games, and News is an all-in-one launcher for your smartwatch that delivers all your Android Wear apps and watches faces all in a single place.