Apple Watch Series 8 offers all the great features you love, like an expansive display, great durability, fast charging, and industry-leading health capabilities. And it has two new sensors for even more heath and safety features. A temperature sensor enables advanced insights for cycle tracking, and a high-g accelerometer works with an improved gyroscope to detect severe car crashes and get help if you need it. Apple Watch Series 8 also offers advanced workout metrics, a Low Power Mode that extends battery life, and a redesigned Compass app.
41mm and 45mm For use with iPhone 6s or later with iOS 16 or later
Design
Edge-to-edge display with narrow borders has almost 20 percent more screen area than Apple Watch SE
Bright Always-On Retina display so the screen is easy to read
Durability
Front crystal is crack-resistant so you don’t have to worry about drops
Fully dust resistant with IP6X certification
Swimproof with a water resistance 50 meter rating
Temperature sensor and Cycle Tracking
Sensor samples wrist temperature overnight and tracks nightly shifts from your baseline temperature so you can see changes that could be caused by exercise, jet lag, illness, or other factors
Changes in temperature can reveal the biphasic shift, an increase in temperature that can indicate ovulation—so the Cycle Tracking app can estimate when ovulation occurred, which is valuable information for family planning, and provide improved period predictions
Blood Oxygen app
Sensor and app measure the oxygen saturation of your blood, an important indication of how well your body is absorbing oxygen
Periodic readings are taken in the background, even while you’re sleeping, recording your blood oxygen trends over time
Heart health
Electrodes in the Digital Crown and back crystal work with the ECG app to read your heart’s electrical signals and generate an electrocardiogram
Apple Watch can check your heart rhythm in the background and alert you to an irregular rhythm that appears to be atrial fibrillation (AFib)
AFib History in watchOS 9 can estimate how frequently your heart is in AFib and track lifestyle factors that may affect your condition
With the optical heart sensor, you can check your heart rate at any time and see your resting, walking, and post-workout heart rates
Crash Detection
High-g accelerometer and improved gyroscope work with the barometer, microphone, and GPS to detect severe car crashes, like front-impact, side-impact, rear-end collisions, and rollovers
If a crash is detected, Apple Watch sends you a notification—and if you don’t respond, it automatically calls emergency services, gives them your location, and notifies your emergency contacts
Battery
Enjoy all-day, 18-hour battery life
Get up to 36 hours of battery life with your iPhone present using Low Power Mode, which maintains core features while selectively disabling others
Fast-charge from 0 percent to 80 percent battery in just 45 minutes
Advanced workouts
Get new metrics like heart rate zone, power, and vertical oscillation
Tailor your routine with Custom Workouts
Multisport workouts automatically switch between swim, bike, and run
Coming soon in watchOS 9, Apple Watch can automatically detect when you’ve arrived at a track, so you get the most accurate running metrics
Compass app
Redesigned Compass app features hybrid, technical, and orienteering views to help you find your way
Set Compass Waypoints to mark key locations, like a trailhead, and view them as a watch face complication to see heading and distance at a glance
If you’re lost or disoriented, Backtrack uses GPS to create a historic path of where you’ve been—and Backtrack automatically turns on if you’re away from all Wi-Fi signals and not in a known location
Sleep app
Get additional insights into your sleep with sleep stage tracking
Apple Watch will detect when you’re awake or in REM, core, or deep sleep
Cases and finishes
41mm cases work with 41mm or smaller bands, and 45mm cases work with 49mm and 45mm or smaller bands
Available in midnight, starlight, silver, and (PRODUCT)RED 100 percent recycled aluminum, and graphite, silver, and gold stainless steel
Nike
All Nike watch faces are available with more models of Apple Watch
Nike Sport Loop bands feature the “Just Do It” logo in four colors
Essential additions
AppleCare+ for Apple Watch, Apple Music, AirPods, additional Apple Watch bands
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