Up To 9 Days Of Battery Life Body Battery™ Energy Monitoring Venu 2 Plus Fitness Smartwatch Reviews Your Stress, Heart Rate, Sleep And Activity Level To Gauge Your Body’S Energy Levels. Stress You Most Likely Experience Stress At Some Point In Your Day, But How Much And When? Keep An Eye On It With Your Venu 2 Plus Fitness Smartwatch. Heart Rate Venu 2 Plus Fitness Smartwatch Samples Your Heart Rate Multiple Times Per Second And Will Let You Know If It Stays Too High Or Too Low When You’Re Resting. Sleep Score Get A Score For The Quality Of Your Sleep And Tips On How You Can Do Better.