Oct 23, 2021 19:00:00

How did 'Apple Watch Series 7' change? Compared to all Apple Watch models

The Apple Watch Series 7 , released on Friday, October 15, 2021, has evolved into a larger screen with a larger case size and a smaller bezel. Actually, I was wondering how the appearance of Series 7 changed compared to the previous Apple Watch, so I compared it with the past model.

Apple Watch Series 7 --Apple (Japan)
https://www.apple.com/jp/apple-watch-series-7/

From left to right, Apple Watch Series (38mm case), Apple Watch Series 2 (42mm case), Apple Watch Series 3 (42mm case), Apple Watch Series 4 (44mm case), Apple Watch Series 5 (40mm case), Apple Watch Series 6 (40mm case), Apple Watch SE (40mm case), Apple Watch Series 7 (41mm case). The case size is 38 mm, length 38.6 mm x width 33.3 mm x thinness 11.4 mm, 40 mm case length 40 mm x width 34 mm x thinness 10.7 mm, 41 mm case length 41 mm x width 35 mm x thinness 10.7 mm, 42 mm case Length 42.5 mm x width 36.4 mm x thinness 11.4 mm, 44 mm case is length 44 mm x width 38 mm x thinness 10.7 mm. The 41mm case of the Series 7 looks almost the same size to the naked eye when viewed side by side with the 40mm case of the Series 6.

The back looks like this. Series and Series 2 and Series 3, Series 4 and Series 5 and SE, Series 6 and Series 7 have the same rear sensor appearance. In fact, the rear sensor is a Series 4 to 2nd generation optical heart rate sensor, and a Series 6 to 3rd generation optical heart rate sensor, so you can tell which generation the optical sensor belongs to by looking at the back part. It is.

The SE was released at the same time as the Series 6, but as you can see from the rear sensor, it is equipped with a second-generation optical heart rate sensor.

Only Series 6 and Series 7 are equipped with a 3rd generation optical heart rate sensor. Both have a blood oxygen wellness sensor for measuring blood oxygen concentration and an electric heart rate sensor for using the electrocardiogram app.

The method for measuring blood oxygen concentration is summarized in the following article.

Summary of how to use 'Blood Oxygen Wellness App' that can measure blood oxygen concentration with 'Apple Watch Series 6' --GIGAZINE

The speaker & microphone part on the left side of the main unit is as follows, and it has been changed to a design that only one slit extends from Series 7.

The side button & Digital Crown on the right side of the main unit looks like this. Series, Series 2 and SE have no accents, Series 3 has the entire Digital Crown painted red, and Series 4 and later have accent lines. Other than red is used for the color of the accent line from Series 6, white for the gold color of the aluminum case, and blue for the aluminum case and blue color of Series 7.

In Series 7, there is no 'diagnostic port used by Apple when diagnosing Apple Watch' from the slit part at the bottom of the main unit. According to the repair company

iFixit , the diagnostic port up to Series 6 is no longer Series 7, so instead it is now wirelessly diagnosing the device. According to Apple, by redesigning the speaker module and removing the diagnostic port, Series 7 has succeeded in achieving IP6X grade certified dustproof performance.

I will actually turn on the display and arrange them side by side. Since the resolution and case size are the same for the first generation-Series 3 and Series 4-6, I tried arranging Series 2 (left), SE (middle), and Series 7 (right). The Series 7 41mm case has a resolution of 352 x 430 pixels and a bezel of 1.7mm, the SE 40mm case has a resolution of 324 x 394 pixels and a bezel of 3mm, and the Series 2 42mm case has a resolution of 312 x 390 pixels and a bezel of 4.5. It is mm.

If you compare the Series 7 41mm case (right) with the Series 2 42mm case (left), you can clearly see that the case size is compact but the resolution is higher.

The Series 6 40mm case (left) and the Series 7 41mm case (right) look like this. The bezel width has been reduced from 3mm to 1.7mm, extending the display to the edge of the housing.