The Apple Watch Series 5 looked similar to the Series 4, but had an “Always-On” Retina display “that never sleeps,” a faster processor, and more storage. The GPS model required an iPhone tether to use the phone features (higher-end models had built-in wireless cellular). This watch added international emergency calling that allowed calling “emergency services directly from Apple Watch in over 150 countries, even without iPhone nearby.”
Like all previous Apple Watch models, the Apple Watch Series 5 uses a Digital Crown and a touch display. The screen is OLED at 368×448 with haptic feedback and a Force Touch display. New health and fitness features with Series 5 included Cycle Tracking, the Noise app and Activity Trends.
Previous Apple Watch models used screens that went black to conserve power. The Always-On screen in the Series 5 was made possible by the OLED display and other hardware and software. According to Apple:
“Each watch face has been carefully optimized for the new display and to preserve battery life, the screen intelligently dims when a user’s wrist is down and returns to full brightness with a raise or a tap. Several advanced technologies work together to deliver this new feature, including the industry’s only low-temperature polysilicon and oxide display (LTPO), ultra-low power display driver, efficient power management integrated circuit and new ambient light sensor.”
Three different aluminum options were available: Space Gray with Black Sport Band (this model), Silver with White Sport Band, and Gold with Pink Sand Sport Band. Many other combinations were available by customizing the watch online. The Series 5 introduced the “Apple Watch Studio,” both on the Apple website and on the Apple Store app. The Apple Watch Studio allowed the opportunity for buyers to select a “preferred case and band combination to create a look that is uniquely their own.”
New materials were also offered with the Series 5, including natural titanium and space black titanium. Aluminum cases in silver, gold, and space gray were offered in “100 percent recycled 7000 series aluminum.” Stainless steel cases were unchanged and were offered in gold, silver, and space black.
The Apple Watch Series 4 was the first major redesign of the Apple Watch family and added several important functions, including health-related features. The display was over 30% larger and filled the entire screen with curved corners, it added more advanced input capabilities, more powerful processing, and more advanced sensors. This model also included GPS and cellular service for use in the United States and Canada.
Like all cellular-capable Apple Watch Series 4 models, this watch could connect to the Internet without an iPhone and send and receive phone calls with an activated cellular service. It was controlled with a Digital Crown with haptic feedback and Force Touch.
This Apple Watch Series 4 model is 44 mm (previous Apple Watch models were 38 mm and 42 mm) with a 368×448 OLED screen. This stainless steel case model used a sapphire crystal to cover the display. All Series 4 models used a ceramic and sapphire crystal back to connect to the wireless charger.
The Apple Watch Series 4 shipped with “revolutionary health capabilities, including a new accelerometer and gyroscope, which are able to detect hard falls, and an electrical heart rate sensor that can take an electrocardiogram (ECG) using the new ECG app.” When announced on September 12, 2018, the ECG feature was not available until it was released on December 6, 2018, through an iOS update.
The ECG feature on Apple Watch Series 4 marked “the first direct-to-consumer product that enables customers to take an electrocardiogram right from their wrist, capturing heart rhythm in a moment when they experience symptoms like a rapid or skipped heart beat and helping to provide critical data to physicians. The irregular rhythm notification feature on Apple Watch can now also occasionally check heart rhythms in the background and send a notification if an irregular heart rhythm that appears to be atrial fibrillation (AFib) is identified.”
In addition, a new accelerometer and gyroscope could detect falls and automatically call 911.
There were 12 different options for this particular Apple Watch Series 4 model:
silver aluminum case with white Sport Band
silver aluminum case with seashell (gray) Sport Loop
gold aluminum case with Pink Sand Sport Band
gold aluminum case with Pink Sand Sport Loop
space gray aluminum case with black Sport Band
space gray aluminum case with black Sport Loop
silver stainless steel case with white Sport Band (this Apple Watch)
silver stainless steel case with silver Milanese loop
space black stainless steel case with black Sport Band
space black stainless steel case with black Milanese loop