Other than smartphones, the devices you see frequently in a fitness center are headphones and fitness trackers. Samsung Gear IconX Earphones mix these two into a very portable item. The headphones offer 4GB of internal storage space, so that you can play music without bringing your mobile phone with you, and integrated sensors record data such as speed, distance, heart rate, and calories burned. As you can imagine, you may also stream songs to them over Bluetooth, an ambient audio mode guarantees you can hear what is happening around you when you are jogging on/near the highway. There is also an integrated holding case that works as a charger, providing you with a couple of extra top-offs before you even need to find an electric outlet.