Huami Amazfit GTR 47MM Smart Watch is packed with lots of smart features. Its 1.39 AMOLED Display, is readable in direct sunlight. It has an extremely strong battery life; it lasts Up to 24 Days on a single charge. Its 24 x 7 Continuous Heart Rate, is a very useful feature for a heart patient because if the heart starts to beat abnormally, this watch makes that person alert. And without removing this watch you can swim, because it's water-resistant. Its beautiful design and touchscreen feature make this watch look even more attractive. And last but not least, in this watch, there are more than 10 sport modes, which are very useful for all the athletes. Overall, this is one of the best smartwatches. And with this smartwatch buyers will get one year of manufacturer warranty as well.