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crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Adam O'Camb

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-[* black] After spending that much time ogling the exteriors, we're keen to see what the interiors have to offer—maybe a new warp drive?
-[* black] Both models can be opened the same way we know from [link|https://guide-images.cdn.ifixit.com/igi/f11osZKFDQstvwPc.full|the Watch3|new_window=true]: Removing four tri-point screws we're able to pry off the rear covers with the help of our ~~super special all purpose spaceship multi~~ [product|IF145-335-2|Opening Tool|new_window=true] and disconnect the rear sensor unit from the motherboard.
- [* icon_note] That being said neither of the watches required heating at this point. The rubber gasket, which provides the IP 68 rating, keeps it shut tight—no need for adhesive here. Horray!
-[* black] Compared to the rear assembly of the [guide|135891|Watch3|stepid=270156|new_window=true], the only additional components we’re able to remove are the flex cables themselves which have ZIF connectors on the sensor side and what seems to be a wire to measure your body composition.
-[* red] The only silicon we can spot here is the [link|https://www.ti.com/lit/ds/symlink/afe4500.pdf?ts=1630166055460&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FAFE4500|Texas Instruments AFE4500S|new_window=true], which handles the optical biosensing.
+[* black] After all that time spent poking around the outside, we're ready to start poking at these watches' insides.
+[* black] Both models open up through the back, same as [link|https://guide-images.cdn.ifixit.com/igi/f11osZKFDQstvwPc.full|the Watch3|new_window=true]: Four tri-point screws stand in the way, which a specialty driver easily takes care of. Then a quick pry from an [product|IF145-335-2|Opening Tool|new_window=true] gets us inside.
+ [* icon_note] Wait, isn't something missing? Nope, no [guide|113044|heat or sketchy slicing|stepid=216162|new_window=true] needed here—the rubber gasket, which provides the IP68 rating, keeps the back shut tight. Hooray!
+[* black] Compared to the relatively integrated rear assembly of the [guide|135891|Watch3|stepid=270156|new_window=true], the Watch4 offers up a few more bits for early removal: the flex cables themselves, and what seems to be a wire to measure your body composition.
+[* red] The only silicon we spot here is the [link|https://www.ti.com/lit/ds/symlink/afe4500.pdf?ts=1630166055460&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FAFE4500|Texas Instruments AFE4500S|new_window=true], which handles the optical biosensing.