Apple's Apple Watch Ultra 4 is expected to be unveiled later this year, with four rumored new features expected. The new Apple Watch will double the number of sensor components, possibly including Touch ID, and will bring "alterations to the exterior design. These sensors could allow Apple to reduce dependence on algorithmic data interpretation, leading to improved health data and battery life. The company has also been working on adding blood sugar monitoring to Apple Watch, but this isn't currently expected for this year. Power efficiency on the new Ultra model could significantly improve, possibly due to a new S-class chip or the gains related to new sensors, could significantly increase battery life and efficiency. However, there are also suggestions that Apple may reduce the need to enter passcode less frequently.