The Apple Watch Series 4 features a new design with a slimmer body with 30% larger display with electric sensors taking ECG readings. Hence they are faster, more efficient S4 chip and a new gold stainless steel model.
Hence with the introduction of September 12, 2018, is the fourth evolution of Apple Watch first debuted in 2015. Thus the series 4 models first Apple Watch models with redesign since the Apple Watch introduced.
With a next-generation accelerometer and gyroscope, the Apple Watch Series 4 can detect a fall occur by analyzing wrist trajectory and impact acceleration. Hence with the motion not getting detected after a fall, the Apple Watch initiating a call to emergency services and hence by sending a message to emergency contacts.
Even with all of the new features, the Apple Watch Series 4 offers 18-hour “all day” battery life and expanded six-hour battery life for outdoor workouts. The battery life thus had been made possible through the S4 chip and new LPTO display technology that offers improved efficiency.
Apple Watch Series 4 is available in Silver, Gold, and Space Gray Aluminum and Silver, Space Gray, and Gold stainless steel, with the latter finish being an entirely new option. There are no longer more expensive Edition models.
Hence the availability in 40 and 44-mm size options, up from 38-mm and 42-mm, Apple Watch Series 4 featuring displays up to 30-percent larger than the previous models. With larger displays and curved corners, the Apple Watch body slimmed down with a thinner and smaller case.
Upon functional part, there is a 50-percent louder speaker usage of Siri, phone calls, and Walkie-Talkie with a microphone has been relocated with a faster and more efficient S4 chip with 2x the speed.
Thus Apple being focused heavily on health with the introduction of a new electrical heart rate sensor combined with electrodes in the Digital Crown taking electrocardiogram reading this fall.
Thus the new features also provide along with an 18-hour “all day” battery life-expanded six-hour battery life for outdoor workouts. Hence the battery life made possible through the S4 chip to new LPTO display technology.
Hence Apple continues to sell Aluminum Apple Watch Series 3 models for a discounted price of $279 whereas other models were discontinued.