Fitbit has everything I need, the steps, the Heart Rate, it has all of my exercising modes, and it has a fair price. It has a rather simplistic User interface, which I really like to be honest. Highly recommened!
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Strava - The #1 app for runners and cyclists
Rust - A safe, concurrent, practical language
Lose it! - Snap a photo of your food to get nutritional facts
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
SmartHealth - SmartHealth is a health and fitness app that effectively monitors and records your sleep patterns and various health-related parameters such as heart rate, blood pressure, etc.