If you are looking for a fitness band that is light and comfortable to wear, and yet packs a punch, then the Samsung SM R3600 Gear Fit2 fitness band is an ideal choice for you. This smart band keeps a tab on your heart rate and calculates your workout activity in real time. It has GPS, HR, accelerometer, gyro, and barometer sensors incorporated into it. This wristband by Samsung is equipped with a 200mAh battery that keeps it operational for a long time in between charges. Moreover, it is IP68 rated, which makes it water resistant. So, you can wear this wristband during the rains, or even while swimming. This fitness band by Samsung is available in a large size and sports a stylish black finish.