The S5 smartphone comes with a heart rate monitor which is located on the back of the SGS5 just beneath the main rear-facing camera and works by firing a red light through your finger. From there it can capture your pulse so it knows how fast your heart is beating. This information is then shared with Samsung's S Health app. This adds an extra dimension for fitness people, who will be able to use their measured heart rates to adjust their training or re-evaluate their goals. You can also compare calories burned to your overall calorie intake.
Under the hood, the S5 is powered by a 2.5GHz quad-core Qualcomm Snapdragon 801 chipset with 2GB of RAM. That gives the Samsung plenty of power, no matter what you're asking it to do. The SGS5 is extremely quick in loading webpages, apps, and games like Real Racing 3. Whizzing around Android KitKat 4.4.2 is easy and you'll not witness any slowdown playing high-graphic games or streaming HD videos.
One of the headline features that the SGS5 offers is Download Booster. This will allow you use 4G and Wi-Fi to help you download files over 30MB faster. However, you'd use this feature sparingly, since Wi-Fi is a pretty good method.