The e-joy smartwatch plus is packed with features like a heart rate monitor, activity tracking, etc. Apart from these, they also have a big battery life which can last up to a month on a single charge. They are also compatible with both iOS and Android smartphones. The e-joy smartwatch plus comes with a one-year manufacturer warranty. What we didn’t like - It doesn’t have a touchscreen; you have to use the side button to navigate between options. Go check this one out! Go check this one out! The e-joy smartwatch plus comes with an Android operating system. This model doesn’t have a touchscreen; you must use the side button to navigate between options.