In the fall of Apple's new product launch conference held in September, the third-generation Apple Watch arrived on schedule and, to a certain extent, got rid of dependence on the mobile phone and made the watch more independent. Of course, the purpose of Apple is not to replace the watch with a mobile phone, but to help users in some situations without having to carry a mobile phone, and it will not be "missing", such as sports and fitness, beach play, and going downstairs to pick up an express delivery. Freedom to go further.
Apple Watch Series 3 has GPS and GPS + cellular network version, the former from the price of 2588 yuan, the latter from the sale price is 3188 yuan. However, the cellular network support is still "limited", and for Chinese users, Apple has given such a message on the official website that "cellular network service is only applicable to mobile accounts that belong to a specific city." Therefore, before buying, you can confirm yourself. Whether the area is supported or you can only wait for the operator to open.
So apart from the cellular network, what are the Apple Watch Series 3 upgrades? Next we will take a look at the dismantling brought by the ifixit team and learn more about it.
Let's first look at the Apple Watch Series 3, which is still 38 mm (272 x 340 pixels, 290 ppi) and 42 mm (312 x 390 pixels, 302 ppi) in both sizes. Both are powered by the second generation of OLED retinas that support Force Touch. Screen; equipped with custom S3 chip; optional LTE and UMTS features, built-in GPS/GLONASS, NFC, 2.4GHz 802.11b/g/n Wi-Fi and Bluetooth 4.2; built-in accelerometer, gyroscope, heart rate sensor, microphone , Loudspeaker, Barometric altimeter, Ambient light sensor; Supports up to 50 meters of waterproof; The system is WatchOS 4.
The Apple Watch Series 3 disassembled by ifixit is a GPS+ cellular network version. It can be seen in the X-ray photos that it is not significantly different from the previous generations of products. Of course, the performance improvement and the more fashionable and diverse strap are not included in this list.
The product information of the Apple Watch Series 3 is recorded in the groove attached to the dial and the new product model is A1889.
Now wanting to disassemble the apple product ifixit gives two necessary conditions: heating and licking. Heat to soften the adhesive between the screen and the dial, and then slowly lift the screen through the cymbals. This process requires carefulness and patience. The rush to end may well be a “destructive kidney injuryâ€.
In order to make it easier for users to distinguish between different versions of the Apple Watch Series 3, Apple has added a red dot mark to the crown of the Apple Watch Series 3 on the GPS+ cellular network. It looks... good devil!
After opening the screen to see the internal and Apple Watch Series 2 there is no obvious difference ...
After disconnecting the cable, you can remove the screen module, which is really no different from the previous generation except for multi-frequency antenna...
There are three chips on the back of the screen, the Analog Devices 343S00092 touch control chip is in the red box, the NXP 80V18 NFC module is in the orange box, and the empty pad in the yellow box...Ifixit speculates that this may be 20211CP TD1628A.
Next disassemble the Taptic Engine and battery. Like previous versions, itixit also encountered a three-point screw when dismantling.
After opening the isolation layer on the Taptic Engine, it was found that the metal brackets, as well as the battery links.
Next remove the battery via the cymbal. After reading the iPhone 8/8 Plus dismantling classmates should be the main arrival, the iPhone's battery is shrinking. Fortunately, Apple did not use this "bad habits" to Apple Watch Series 3. This product is equipped with a 1.07 Whr (3.82V, 279mAh) battery, compared with the previous generation (1.03Whr) increased by 4%, compared to the initial generation (0.78Whr) was an increase of 32%, which is also the emboldened apple that the watch life can still One of the reasons for reaching 18 hours.
At the same time, the expansion of the battery did not allow Apple Watch to shrink in other functions.
Next, remove the Force Touch gasket. The ifixit also returns the same Analog Devices AD7149 capacitive sensor controller as the previous generation.
Dismantling continues, remove the Taptic Engine and antenna module.
Next is the speaker in the dial, ifixit pointed out that the water will be drained by ultrasonic waves to ensure the watch's tightness.
Then remove the isolation layer covering the main circuit board to see a large number of chips, multi-generation new generation of radio frequency chips, to be more newly added LTE function. At the press conference, Apple introduced the addition of a barometric altimeter to the Apple Watch Series 3, which will be helpful for outdoor sports such as skiing (or climbing stairs in the city?).
Then... Take out this "small" motherboard.
The components on the mainboard are introduced. The red box in the figure shows the ST Microelectronics ST33G1M232-bit microcontroller with the ARM SecurCore SC300 microprocessor; the orange box contains the Avago AFEM-8057, which may be the front-end Wi-Fi module; SkyWorks 78109-12; FY LEE C7P in the green box; FF1A02 in the light blue box; Apple(?) 339M00035 in the dark blue box.
Now start dismantling the back plate on the bottom of the dial and remove it from the "O-shaped" snaps like Teflon by pushing the top of your finger.
The material of the backplane has been "standardized" in the Apple Watch and replaced Ion-X or sapphire by adding ceramics. Also included here is the Photovoltaic Volume Scan (PPG) sensor array used to monitor heart rate, which is very helpful for improving the accuracy of monitoring data.
In addition, in order to better support the Qi wireless charger, the wireless charging coil for the Apple Watch 3 has also been slightly modified. With the addition of the iPhone 8/8 Plus wireless charging function, the accessory factory (Apple) also introduced a larger wireless charging dock (AirPower) that can charge multiple devices at the same time, making it easier for users to use daily.
The barometric altimeter is located next to the microphone and the vent for detecting air pressure is also located on the body of the metal watch.
Finally sent a family portrait of Apple Watch Series 3.
For the Apple Watch Series 3, the ifixit gives a 6-point repairability score (10 is the easiest to repair), just like the iPhone 8/8 Plus.
Among them, the strap replacement is still very simple and quick; the screen can be disassembled by heating and softening the cheeks. Of course, it requires patience and careful separation of the connecting cables; it is also not difficult to replace the battery with professional tools. The design is conducive to the post-repair work. The addition of the three-point screws, the replacement of the cables after the components need to be welded, and the tightly sealed S3 system allow board-level maintenance... It is difficult to achieve such as Apple Watch Series 3's late repair difficulty.
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