Apple Watch Series 7
The Apple Watch Series 7, announced in September 2021, is the current version of the Apple Watch, which was initially launched in 2015 and replaced the Series 6. The Apple Watch Series 7 builds on previous Apple Watch models with a more rounded design and offers notable new features, including larger screens, increased durability and faster charging.
Apple Watch Series 7 comes in new 41mm and 45mm size options that are 1mm larger than the 40mm and 44mm options of previous generations, and the cases have refine with smoother, more rounded edges. Like the Apple Watch Series 6, the Series 7 models feature a black ceramic and sapphire crystal case back and a digital crown with haptic feedback. The digital crown has a built-in sensor for taking ECG readings.
Thanks to thinner bezels, the new models feature a larger, redesigned Retina display with more screen real estate. The screen has a unique reflective edge that almost curves towards the case. There are interface improvements and two individual watch faces to take advantage of larger screens. The Series 7 continues to feature the low-power Always-On (LTPO) OLED display technology introduce with the Series 5, allowing users to see the watch face and complications at all times.
Apple Watch Series 7 is more durable than previous models, with crack-resistant front glass, IP6X dust resistance and a WR50 water resistance rating.
Apple Watch Series 7 models can also charge 33% faster, with just eight minutes of charge providing up to eight hours of sleep tracking time.
Design of Apple Watch Series 7
The design of the Apple Watch Series 7 builds on the square, rounded look of previous generations but now comes in new 41mm and 45mm case size options to suit different preferences and wrist sizes. The Apple Watch Series 7 refine with smoother, more rounded edges. Although the cases are slightly larger, they still work with older generation straps.
Weights range from 32 grams to 51.5 grams depending on case size and material, with the heaviest stainless steel Apple Watch models. This is a slight increase in weight compare to the previous generation. The Series 7 is the same 10.7mm thick as the Series 6.
All Apple Watch Series 7 models feature a black ceramic and glass back that houses four groups of LEDs and four photodiodes to facilitate health monitoring functions such as heart rate monitoring, blood pressure monitoring, blood oxygen and ECG.
There’s a digital crown on the side of the Apple Watch for scrolling and navigation, and there’s a side button for bringing up frequently used apps, accessing emergency services, confirming Apple Pay purchases, and more.
The Digital Crown is equipped with haptic feedback that provides a precise mechanical feel when scrolling through lists and controlling various aspects of the Apple Watch and is key to the ECG app as it has a built-in electrode that works in conjunction with the rear sensors. . .
Please note that the Digital Crown looks different depending on which model of Apple Watch you purchase. LTE models have a red ring around the digital crown to let you know they have LTE functionality, while GPS-only models do not have the red circle.
Colors and Materials of Apple Watch Series 7
The Apple Watch Series 7 is available in three materials: aluminum, stainless steel, and titanium. Aluminum Apple Watch models are the most affordable, while titanium models are the most expensive.
This year, Apple introduced four new aluminum colors: Midnight, Starlight, Green, and Blue. These join the (PRODUCT)RED hue inherited from Series 6. The stainless steel Apple Watch models are available in silver, gold, and graphite, a dark grey hue. Titanium models are available in Natural (a silvery grey) and Space Black.
Made from 100% recycled 7000 series aluminum, aluminum Apple Watch models are lightweight, affordable, and designed for an active lifestyle. In contrast, stainless steel models are heavier, more expensive, and designed for daily use instead of activity-oriented.
Stainless steel and titanium models feature sapphire crystal displays that are more scratch-resistant than the Ion-X glass used for aluminum models. Aluminum models are available with and without LTE connectivity, while stainless steel and titanium models are LTE-only, and cheaper GPS-only models are not available.
In terms of specific weights, the titanium models weigh less than the stainless steel models, which are the heaviest of the Apple Watch models, and all Series 7 models weigh up to 10% more than the Apple Watch models. Series 6. The weights of each model are listed below:
Aluminum: 32.0 grams
Stainless steel: 42.3 grams
Titanium: 37.0 grams
Aluminium: 38.8 grams
Stainless steel: 51.5 grams
Titanium: 45.1 grams
Health Functions of Apple Watch Series 7
Apple Watch Series 7 offers the same health monitoring features `as Series 6. A second-generation optical heart rate sensor calculates metrics such as calorie burn, resting heart rate, and elevated heart rate. The electrical heart rate sensor can be used to take EKGs, while LEDs and infrared light allow for blood oxygen monitoring. A built-in accelerometer and gyroscope enable. Another essential health-related function, such as fall detection.
Apple Watch can detect low heart rate, high heart rate, and abnormal heart rate, and monitor health conditions. It’s such as atrial fibrillation and sends notifications when abnormalities are detected.
Blood Oxygen Monitoring
Sensors on the back of the Apple Watch activate the Blood Oxygen. A Monitoring feature is available on the Apple Watch Series 7. Blood oxygen saturation in a healthy person is approximately 95 to 100%. If when the blood oxygen percentage drops below. It may indicate a severe health condition that requires immediate attention.
Green, red and infrared LEDs illuminate the blood vessels in the wrist, with photodiodes measuring the amount of reflected light. Apple’s algorithms then calculate the colour of the blood, which indicates the amount of oxygen present.
Bright red blood oxygenate, while darker blood contains less oxygen, and this is how the Apple Watch determines the level of oxygen in the blood. Like Series 6, Series 7 can measure blood oxygen between 70-and 100%.
Blood oxygen measurements can perform on-demand using the Blood Oxygen app installed on the Apple Watch. To take a measure, make sure the Apple Watch fits snugly on your wrist, open the app, stand still, and keep your wrist flat. Press the start button, then hold your arm steady for 15 seconds. At the end of the elapsed time, Apple Watch provides a reading of your blood oxygen level, with the data stored in the iPhone’s Health app.
The Apple Watch Series 7 also takes blood oxygen measurements in the background, and this configures when you set up the Apple Watch. These settings are available in the iPhone Health app. Touch Explore > Respiratory > Blood Oxygen > Set Blood Oxygen.
The electrodes on the back of the Apple Watch and Digital Crown work together to allow users to take single-lead EKGs, just like on the Apple Watch Series 4. An EKG measures the heart’s electrical activity and can use to diagnose heart failure. Health. Problems. with a doctor
ECGs are captured by holding a finger to the Apple Watch Digital Crown and can detect a (standard) sinus rhythm, an abnormal result. If or sometimes an inconclusive result that should share with a doctor. The ECG can detect atrial fibrillation at heart rates greater than 100 beats per minute.
A single-lead ECG like the Apple Watch means there are two points of contact that measure the electrical sensations of your heart. Clinical EKGs performed by your doctor may have six to 12 leads for greater accuracy. Still, the Apple Watch offers the convenience of taking an ECG anytime, anywhere, in about 30 seconds.
Since regulatory clearance require for the ECG feature, it is restrict2Q to Apple Watch users in certain countries. In with a list available on Apple’s feature availability website. Apple continually brings ECG functionality to new countries.
Apple Watch Series 7 can wear at night to monitor your sleep, with Apple providing data on how long you sleep each night. The feature also offers helpful tools for getting a better night’s sleep, with details available in our sleep tracking guide.
Sleep tracking is also available on older Apple Watch models as it’s enabled through software rather than hardware. Still, newer models have better battery efficiency and faster charging so that you can top up. Your Apple Watch is shorter in the morning after a night’s sleep.
Apple Watch Series 7 features a redesigned and more vital front glass component with a more robust geometry. It is 50% thicker than previous models and more resistant to cracking.
The aluminum Apple Watch models have Ion-X glass to protect the screen. While the stainless steel and titanium models use sapphire crystal. Sapphire crystal offers better scratch resistance than Ion-X crystal. Because it is a more rigid material, meaning models with sapphire crystal are more resistant to scratches and daily wear and tear.
The Series 7 is also certified IP6X dust resistant. Its making it much more durable for environments like the beach or the desert.
The device continues to feature WR50 water resistance. It design for water immersion up to a depth of 50 meters via seals and stickers. Requiring air to produce sound, the speaker is the only point of entry and design. In to expel water via sonic vibrations after exposure to moisture.
Because iT design for 50m submersions, the Apple Watch can worn swimming in the ocean or a pool. It is only suitable for shallow-water activities and cannot use for diving, or water skiing. It’s showering, or other high-speed water or deep immersion activities.
Apple’s Apple Watch warranty doesn’t cover water damage, so it’s best to be careful when exposing your device to water.
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