Teardown Suggests Apple Watch Series 5 Components are Close to Identical to Series 4 - MacRumors
Skip to Content

Teardown Suggests Apple Watch Series 5 Components are Close to Identical to Series 4

The internals of the Apple Watch Series 5 are almost identical to the internal components of the previous-generation Apple Watch Series 4, according to a new teardown conducted by repair site iFixit.

That should come as no surprise as the two devices are identical in design, with the major differentiating factor being the Always-On display in the newer model.

series5teardown
iFixit hoped to get a look at the changes implemented to allow for the Always-On display, but much of what's new relates to display technology and is "invisible to the human eye."

The site did spot a new ambient light sensor embedded under the OLED panel, and Apple says there are more advanced display drivers and an improved power management chip in the Series 5 as well.

There's a new built-in compass and the battery is slightly bigger than the battery in the Series 4 (1.4% larger in the 44mm model). The Series 5 chip includes 32GB of storage, up from 16GB, and the new compass, but it features the same GPU and CPU as the Series 4 so there are no real performance improvements.

series5battery

Series 4 battery on left, Series 5 battery on right

iFixit says there are minor changes to connectors for the Taptic Engine, display, and battery, which means components are not generally interchangeable, but otherwise, the two devices are "very similar" on the inside.

Related Roundup: Apple Watch 12
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: Apple Watch

Popular Stories

apple watch s12 ultra 4

Apple Watch Series 12, Ultra 4 Owners Report Skin Irritation

Wednesday October 7, 2026 12:02 pm PDT by
Some Apple Watch Series 12 and Ultra 4 owners have experienced unexpected skin irritation with the new models, according to reports on the MacRumors forums and Reddit. Affected users complain of a burning sensation and redness under the sensor area. The Apple Watch Series 12 and Ultra 4 measure heart rate every five seconds, and some people have wondered if that's the cause of the skin...
apple watch series 3 design

Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch

Sunday November 1, 2026 3:34 am PST by
Apple has published a support document describing what to do if your Apple Watch continues to show time that's off by one hour after daylight savings time changes. "This incorrect time appears only on the Always On display when your wrist is down," says Apple. "When you activate the display by tapping it or raising your wrist, the time changes to the correct hour." To fix the issue, Apple says ...
southern straps 3 1

MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps

Friday October 9, 2026 10:20 am PDT by
For this week's giveaway, we've teamed up with Southern Straps to offer MacRumors readers a chance to win an Apple Watch Series 12 and a nylon band from Southern Straps to go along with it. Southern Straps is a California-based company that has been making high-quality bands for the Apple Watch since the device first launched in 2015, and the company's selection of bands offer a an...

Top Rated Comments

93 months ago
This is a bad title/article. From the article itself:

* Always-on display
* New ambient light sensor
* Better display drivers
* New power management chip
* Compass
* Bigger battery
* Double storage
* Minor changes to connectors for the Taptic Engine, display, and battery

In other words, not "Close to Identical." I get it that it isn't an earth-shattering update, but people tripping over themselves to claim this is the Series 4 with a "5" slapped on it are being disingenuous.
Score: 31 Votes (Like | Disagree)
93 months ago

The AOD is the huge new feature. Nothing else matters this year.
It makes Series 5 a no-brainer purchase for pretty much everyone.
Yeah no, I'll hold on to my Series 4 lol
Score: 19 Votes (Like | Disagree)
Steve686 Avatar
93 months ago
So this is basically an

Apple Watch 4s
Score: 9 Votes (Like | Disagree)
93 months ago

Innovation at its best. On the other hand there are so many "I have to have the latest Apple fashion accessory" people that you really can't blame Apple for catering to ignorant indoctrinated buyers. After all they spend millions to make that a reality.
Or maybe after the major improvements of last years release an incremental upgrade was expected for this year. Many S4 owners will stick with last years model (myself included) and the S5 is great for people upgrading from an S3 or earlier or no watch. Do you expect a revolutionary new device packed with fresh technology every year?
Score: 9 Votes (Like | Disagree)
dan9700 Avatar
93 months ago
First Apple product in years I haven’t brought on launch and gonna skip its much darker brightness compared to S4 my mate has it and the beta didn’t help it’s not good, also the fact the s5 chip has no speed improvements is a no sale from me, always on is a gimmick


The AOD is the huge new feature. Nothing else matters this year.
It makes Series 5 a no-brainer purchase for pretty much everyone.
Not really how hard is it to touch the screen or move it to look at it, the screen on max brightness is much dimmer than s4
Score: 7 Votes (Like | Disagree)
93 months ago
Innovation at its best. On the other hand there are so many "I have to have the latest Apple fashion accessory" people that you really can't blame Apple for catering to ignorant indoctrinated buyers. After all they spend millions to make that a reality.
Score: 7 Votes (Like | Disagree)
Latest Stories
Nearly Every M5 MacBook Air Now $200 Off on Amazon
Nearly Every M5 MacBook Air Now $200 Off on Amazon
13 hours ago
Apple's HomeView Ships With Six-Month-Old Software
Apple's HomeView Ships With Six-Month-Old Software
15 hours ago
Three New iPads Rumored to Launch in First Half of 2027
Three New iPads Rumored to Launch in First Half of 2027
15 hours ago
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
19 hours ago
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
2 days ago
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
2 days ago
Here's a New Tour of Apple's HomeView Software
Here's a New Tour of Apple's HomeView Software
2 days ago
Apple Reveals New iPad Mini's Battery Capacity
Apple Reveals New iPad Mini's Battery Capacity
2 days ago
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
2 days ago
'Pluribus' Season 2 Reportedly Starts Production Today
'Pluribus' Season 2 Reportedly Starts Production Today
2 days ago
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
2 days ago
HomeView Software 27.2: Wallpapers, Control Center, and More
HomeView Software 27.2: Wallpapers, Control Center, and More
2 days ago
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
2 days ago
iOS 27.3 Will Enable These Apple Intelligence Features in China
iOS 27.3 Will Enable These Apple Intelligence Features in China
2 days ago
Apple Says iOS 27.3 Beta Coming Next Week
Apple Says iOS 27.3 Beta Coming Next Week
2 days ago
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
2 days ago
14 New Things Your iPhone Can Do in iOS 27.2
14 New Things Your iPhone Can Do in iOS 27.2
2 days ago
iPhone Duo Review: One Week Later
iPhone Duo Review: One Week Later
2 days ago
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
3 days ago
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
3 days ago
MacBook Pro With Touch Display: 15 More Details Revealed
MacBook Pro With Touch Display: 15 More Details Revealed
3 days ago
Russia Places Apple on State Surveillance Registry
Russia Places Apple on State Surveillance Registry
3 days ago
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
3 days ago
Apple Has Released More Than 25 New Products in the Past Two Months
Apple Has Released More Than 25 New Products in the Past Two Months
3 days ago
Local Code Launches as Free, Private AI Assistant Tool for Mac
Local Code Launches as Free, Private AI Assistant Tool for Mac
3 days ago
Apple Acquires Ascend.io
Apple Acquires Ascend.io
3 days ago
HomePod Mini 2 Launches Today: All the New Features
HomePod Mini 2 Launches Today: All the New Features
3 days ago
AirTag 2 4-Pack Drops to New Low Price of $69.99
AirTag 2 4-Pack Drops to New Low Price of $69.99
3 days ago
Rian Johnson's iPhone Camera App Goes Viral
Rian Johnson's iPhone Camera App Goes Viral
3 days ago
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
3 days ago