For some time now, Samsung has been making their S Health app available on select Samsung smartphones. That changed today though. Samsung is now making their S Health app available for use on any Android smartphone, and you can download it from the Google Play Store for free. Here's a quote with a brief description and a link below:
STAY FIT
S Health is your personal fitness coach. Set targets, track your everyday activities and reach new milestones with Goals. With intuitive charts and helpful tips, the goals will guide you to achieve your health & fitness targets. Stay fit and get healthy with the new S Health.
MANAGE IT
S Health makes it fun and easy to stay on top form. With a simple and quick summary, it's easy to have a quick glance at your latest health and fitness status. Of course, you can personalize your dashboard by adding or removing Goals, Programs and Trackers.
IMPROVE IT
Go beyond your limits with Programs. Whether you are a first timer or an avid runner, the programs help you accomplish your fitness milestones. With the voice guide, keeping pace is easier than ever.
TRACK IT
Whether it's a single step, a bite at lunch or time spent soaking in the sun, track it all with Trackers. The trackers not only make it easy to track your daily activities, they also allow you to measure and manage your health and environmental records such as heart rate, SpO₂, and ultraviolet using the built-in sensors in Samsung smartphones and wearables.
Source: Google Play Store - Samsung S Health