User Interface is undoubtedly the most deciding point and a user always wants an easy-to-understand interface. Battery Life: Unlike smartphones, we can’t charge smartwatches every day. Since sleep tracking is one of the widely used features, so you can’t charge it during nighttime as well. Therefore, a smartwatch must have solid battery life. Built-Quality is another element that does play a role while making a purchase. Due to its all-day usage, it must need to be comfortable, therefore manufacturers are very much concerned with making it reliable.