Who needs a personal trainer when you've got the Huawei GT 4? It can monitor over 100 workout modes including running, skiing, football, or diving - great for finding out where you can improve your performance. But it's not all about the grind - it can also keep track of your sleep, stress levels and vitals. Plus, with up to 7 days of battery life, you can leave that extra charger at home on your next vacation. Good to know- TruSeen 5.5+ precisely monitors your heart rate and blood oxygen all day, and it will notify you of any anomalies- To help you rest easy, TruSleep 2.0 measures your sleep and gives your quality scores in the morning- The Calorie Management makes counting calories a cinch, tracking every bite, burn, and restful breath- Thanks to a wide selection of popular apps you can do more without pulling out your phone- The watch is waterproof down to 50 m so you can wear it while swimming and diving