The component for Force Touch (the screen-pressing action), which has been a regular feature of Apple Watches, has also been removed. This was an expected change since Force Touch support had been dropped from watchOS 7, but thanks to this, the pesky gasket (fixing seal) has been removed and it's easier to disassemble. The number of cables is also said to have been reduced due to the rationalized design.
It's worth noting that the battery capacity has increased. The 44mm model is up slightly (3.5%) over the previous model, while the 40mm model is confirmed to have increased by 8.5%. However, Apple's nominal battery life was left unchanged at 18 hours per charge, just like the Series 5, so it doesn't seem to have much of an impact.
The other big component of Series 6 is the Taptic Engine (haptic feedback. It vibrates the device and informs you through the sense of touch. iFixit praised the use of 100% recycled rare earth metals and tungsten. The iPhone's Taptic Engine was also announced to use recycled rare earth (some believe that the company was wary of the difficulty of getting rare earth from China due to friction between the U.S. and China), and the Apple Watch seems to be using them as well.
As a result of this tweaking of the details, the Series 6 is slightly thinner than the Series 5, ranging from 10.74mm to 10.44mm thick, according to iFixit. The sensors that measure blood oxygen saturation (SpO2), which is the center of attention, are fused to the bottom, and iFixit has not been able to be disassembled.
The iFixit's customary Repairability Score is 6 out of 10 (the same 6 for the Series 5) due to the replaceable screen and ease of battery replacement. The reason for the loss of points is that several component flex cables are mounted directly to the S6, the SoC, and the fact that they require skilled micro-soldering to replace if they are torn.
While we thought it was mostly a diversion from the Series 5, there are actually quite a few internal refinements to the Series 6, which means it may be a little thinner and slightly better battery life. If you have a previous model, you may have more reason to consider replacing it.
This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl. The Japanese edition of Engadget does not guarantee the accuracy or reliability of this article.