If you prefer our traditional teardowns, check out our step-by-step teardown of the Apple Watch Series 5.
The big new feature on the Apple Watch Series 5 is its always-on display. Now you can tell the time, anytime—an “innovative” feature that my $20 Timex has had for ages, but it’s easier said than done on a complex device like the Apple Watch. That’s why what really matters is on the inside. Here’s what our teardown uncovered.
UPDATE (9/25/19): We got around to opening up the 40 mm model and noticed a significantly different battery. This one has a snazzy new metal casing, as well as 10% more battery capacity than the Series 4 40 mm model. Read more about our discovery here.
From the outside, it’s hard to distinguish the Series 5 from the Series 4, unless you flip that bad boy over to see the “Series 5” printed on the bottom. The opening procedure also remains the same—some heat to soften the adhesive and a precision knife to separate the display.

On the back of the display assembly, we hoped to get a closer look at what makes the always-on display tick. Apple stated that the Series 5 uses advanced display drivers, an improved power management chip, and an improved ambient light sensor compared to last year’s Series 4. But the real improvements are baked into the display tech invisible to the human eye, as detailed in our in-depth blog post on LTPO technology.

The improved, if not altogether new, ambient light sensor is visible in our X-rays, embedded under the OLED panel. But the built-in compass is new, and supposedly uses a very tiny gyroscope (and presumably some very fast math) to compensate for interference from the magnets inside the watch.
The battery is a hair bigger (1.4% in the 44 mm model) than in the Series 4—which isn’t much, so the always-on display probably owes its existence mainly to the aforementioned efficiency improvements. As for removing the battery, you know the drill: it can only be disconnected while in the process of prying it out of the case.

The Series 5 uses Apple’s new S5 system-on-chip, which packs in twice the storage and the new compass. But it also contains the same CPU and GPU as the S4 chip in the Series 4, and the overall performance specs are the same.
Other than that, the Series 5 is very similar to the Series 4 on the inside. But Apple has made enough minor changes that many parts are not interchangeable, thanks to redesigned connectors on the taptic engine, display and battery.

Now, about Apple’s claim that the Series 5 Sport cases are made from “100% recycled aluminum.” While using recycled materials is great, the truth is most of the world’s aluminum is already recycled, and recycled aluminum is dramatically cheaper than the freshly-mined variety. The real question is whether Apple uses any recycled aluminum that wouldn’t have been recycled anyway. And after analyzing Apple’s statements on the matter, the answer seems to be no. Apple is in line with industry standards, and isn’t remaking the field. Recycling all the lithium or cobalt in their batteries would be a true leap forward, and Apple may well be working on something like that, but using recycled aluminum isn’t much to get excited about.

In any case (no pun intended), the Apple Watch Series 5 earns a repairability score of 6 out of 10 (with 10 being the easiest to repair).

23 Comments
What is the point of this comment? That Apple is not being environmentally responsible unless it hurts their bottom line in the process?
mwickens - Reply
Look at it this way… Was Apple using virgin aluminum in the older systems or where they quietly using a mix or even all recycled aluminum?
If they were using 100 virgin aluminum then they have something to crow about!
But, rumors have had Apple using mixed right along. Only now they maybe using 100 % recycled. Apple never clearly stated what they were using before so they maybe patting them selves on the back with no real effort here.
Holding Apples feet to the fire on being upfront is not a hate thing! Its making sure they are being truthful!
iFixit is not anti-Apple! on the contrary! Their business is Apple centric. You scold your children in hate or for love so they become better! This is no different.
Dan -
We get it Craig, you’re not a fan of Apple.
That chip on your shoulder should be saved for your personal posts, not a technical teardown where your bias is clearly showing.
manchesterca - Reply
There is nothing in this teardown that is biased!
The only comment you could even argue with is if Apple is being truthful on their motives on using recycled Aluminum as a cost issue Vs recycle issue.
If recycling is important to you then the cost should be secondary! Then the recyclability of other materials is also important Craig was only pointing that out.
Dan -
Wow. There’s NOTHING biased in this teardown. I personally appreciate the add’l information about recycled aluminum, and it should be important to all Apple fans that they *might* be greenwashing here (tough to know for sure, b/c we don’t have a baseline).
emphasys -
Hahahaha typical iSheep. Gtfo kid
RetardedComments Here -
I enjoyed the report, keep up the good work
Richard - Reply
What about RAM on series 4 and 5?
Avior - Reply
I wonder whether Apple is using the same S5 architecture but a slightly-tweaked process node to reduce power — more EUV-exposed layers, that sort of thing. TSMC could certainly offer this. I guess we’ll never know, not even from ChipWorks, as this is the sort of information that I’d expect them to reserve for paying customers …
Dominic Dunlop - Reply
“…but using recycled aluminum isn’t much to get excited about in my personal opinion.” There, I fixed it for you.
Leigh Chapman - Reply
Wow!
But no surprise. The Apple Defense Force spills even into the comment section of always great iFixIt teardown.
[There is no corner on the Internet now safe from those Apple acolytes : Even a tinge of fact-finding that is seen as negative produces these (tiresome) rebukes.
Maybe they should lodge themselves on the likes of MacRumors and 9to5Mac.
doctorj - Reply
Even from people like you: obssessed to always make comments about the others and that they never have anything interesting to say. Peace!
Luca -
Nowhere is safe with this iSheeps. Retarded as always
RetardedComments Here -
Does this mean the heart monitor and accelerameter are the same? I thought I read there was changes to the accelerameter in the latest version?
Rachel James - Reply
Sorry Dan, but I did feel like I was reading a personal and emotive series of comments about Apple, rather than an insightful and useful teardown. Please refrain from casting aspersions in future.
Kit - Reply
What about the ram?
Is it the same with series 4?
John Sgardas - Reply
Google it. This site is not the LONE source for that.
RetardedComments Here -
You can always count on all the Apple fanboi apologists to come swooping in to berate anyone about any perceived slight against Apple!
sebastienboisvert - Reply
I know right? freaking iSheep lolz
RetardedComments Here -
Is this all we’re going to get for a teardown? Last year we got basically a full guide with loads of pictures but this year we’re getting only a few.
TheLoneGamer - Reply
What’s the point of doing a full teardown when everything is”essentially” the same with S4? *facepalm*
RetardedComments Here -
Not getting all the hate in the comment section. Companies should be encouraged to be environmentally responsible but informed writers like Craig should be able to assess the actual impact of whatever move a company promotes without getting baselessly attacked. Good on Apple if they are recycling aluminum 100%, but it was absolutely helpful to point out that most aluminum is already recycled when an average consumer might not know that fact. I mean, who has a chip on their shoulder? Certainly not the writer in my view.
hong_sh91 - Reply
This video helped me solve a big problem, and I would not disassemble it before. But what I want to say is that Tigersalu provides some aluminum for apple
www.tigersalu.com - Reply