Photos of Bare iPhone 5S Logic Board Surface, Slightly Narrower Than iPhone 5 Board [Updated]

As noted by Mac Otakara, Japanese parts firm Moumantai has posted three photos of what may be the bare logic board from the iPhone 5S. Unsurprisingly, the shape of the board is nearly identical to that of the iPhone 5 logic board, although it appears to have a slightly different curve along the bottom edge where the logic board would meet the speaker enclosure.

iphone_5s_5_logic_boards_front

Front of claimed iPhone 5S logic board compared to iFixit's iPhone 5 logic board photo

Few details can be obtained from the part, as there are no chips or other components attached to the board, although it does contain a somewhat different placement of screw holes and a tweaked chip layout. The main A-series chip appears as if it will be slightly larger in area than the A6 seen in the iPhone 5, as it takes up a greater width of the logic board.

iphone_5s_5_logic_board_rear

Rear of claimed iPhone 5S logic board compared to iFixit's iPhone 5 logic board photo

Apple's iPhone 5S is expected to launch later this year, perhaps around the September timeframe. Following Apple's pattern of two-year body style cycles, the iPhone 5S will reportedly appear very similar to the iPhone 5 and focus on internal improvements. One differentiating feature may, however, be a fingerprint sensor, which is rumored to be location on or near the device's home button.

Update 8:32 AM: As noted in our forums by chrmjenkins, the logic board may actually be slightly narrower than on the iPhone 5, meaning that the main A-series chip may be the same size as the A6 in the iPhone 5.

I think the logic board has gotten narrower. Notice how the A6 has room for a triple row of caps to its left? The new logic board only has room for a single row (caps being placed longways, granted). Also, the back of the iPhone 5 logic board has the Hynix memory module spanning the whole board. Now since the board is thinner, it's been forced to rotate 90 degrees to fit since it's longer than it is wide.

Top Rated Comments

Four oF NINE Avatar
112 months ago
Need more GB, instead of quad core.

Add 128 GB, delete 16 GB, maintain current price points.
Score: 17 Votes (Like | Disagree)
Jsameds Avatar
112 months ago
Who cares, it will be running iOS 7 which is garbage! #BoycottiOS7
Weird, I'm sure Apple made improvements in virtually every single aspect of iOS 7 over iOS 6, and I'm also sure I logged into MacRumors, not twitter.

Must be my computer playing up. Restarting now...
Score: 13 Votes (Like | Disagree)
Rogifan Avatar
112 months ago
Weird, I'm sure Apple made improvements in virtually every single aspect of iOS 7 over iOS 6, and I'm also sure I logged into MacRumors, not twitter.

Must be my computer playing up. Restarting now...

Haha amazing to see how many people now seem to care about form over function when usually they're complaining about Apple doing the same thing. For me quick access to common settings and better multitasking > design of app icons.
Score: 9 Votes (Like | Disagree)
chrmjenkins Avatar
112 months ago
Lots of possibilities here. Assuming they're moving to 28nm, it definitely means they're adding stuff if it's getting bigger.

Possibilities:

* Rogue family GPU. Die size is unknown for this family so it may well be a reason for increase.
* Quad core. Apple may have optimized iOS 7 and its APIs for a true quad core environment.
* Shadow core. Apple could be implementing a Tegra-like solution with a simplified, slower core that powers up to take care of simple tasks like notifications. Only when the user is fully using the phone do the faster cores turn on.
* big.LITTLE. This is kind of like the shadow core, except it's an actual ARM concept supported directly in their architecture and ISA. Since swift cores are custom, it would be a little different for apple, but it may still be possible for them to use two A7 cores (custom or not) to match their Swift cores for low power operation. It's also possible they've adapted a single A7 core into a shadow core. (*currently ARM's big.LITTLE concept requires the number of A7 cores to match the number of main cores, which is why there is an octa core Samsung Exynos part. Apple may or may not try to break from this restriction)
* Custom circuitry. The redesigned A5 for the appleTV had a lot of custom analog circuitry. It's possible Apple could be going even more custom on the A7 design, which could cause a size increase. They could also be moving off component chips on chip to reduce the overall number of components on the board.


All that being said, I think the premise of the article is wrong. I think the logic board has gotten narrower. Notice how the A6 has room for a triple row of caps to its left? The new logic board only has room for a single row (caps being placed longways, granted). Also, the back of the iPhone 5 logic board has the Hynix memory module spanning the whole board. Now since the board is thinner, it's been forced to rotate 90 degrees to fit since it's longer than it is wide.
Score: 9 Votes (Like | Disagree)
vmachiel Avatar
112 months ago
Why do we need quad core? Those swift cores in A6 are a great balance in power and battery life I think.

We'll see I guess
Score: 9 Votes (Like | Disagree)
Thunderhawks Avatar
112 months ago
Why do we need quad core? Those swift cores in A6 are a great balance in power and battery life I think.

We'll see I guess

Need more GB, instead of quad core.
Score: 8 Votes (Like | Disagree)

Popular Stories

airpodsinear 1

AirPods Save Woman's Life With Feature Everyone Should Know

Friday January 21, 2022 2:13 am PST by
Apple's AirPods have been credited with saving a woman's life after a potentially fatal fall, People reports. When a 60-year-old florist in New Jersey tripped and hit her head in her studio, she lost consciousness and awoke heavily bleeding. With nobody around to call for help, she realized she had her AirPods in, and used a "Hey Siri" command to call 911. An operator was able to stay on the ...
Upcoming Products 2022 Feature

Gurman: Apple Preparing 'Widest Array of New Hardware Products in Its History' for Fall

Sunday January 23, 2022 10:32 am PST by
Apple is working on a number of new products that are set to launch this fall, and Bloomberg's Mark Gurman says that it will be "the widest array" of new devices that Apple has introduced in its history. In his latest "Power On" newsletter, Gurman explains that Apple is working on four new flagship iPhones (iPhone 14, iPhone 14 Max, iPhone 14 Pro, and iPhone 14 Pro Max), an updated low-end Ma...
Questionable Design Decisions

Apple's Most Questionable Design Decisions in Recent Memory

Sunday January 23, 2022 2:59 am PST by
Apple has always emphasized the depth of thought that goes into the design of its products. In the foreword to Designed by Apple in California, a photo book released by the company in 2016, Jony Ive explains how Apple strives "to define objects that appear effortless" and "so simple, coherent and inevitable that there could be no rational alternative." But every once in a while even Apple...
top stories 2022jan22

Top Stories: Spring Apple Event Rumors, Apple Opposes Sideloading, and More

Saturday January 22, 2022 6:00 am PST by
As we roll into the latter half of January, we're starting to hear more about a potential spring Apple event, which is likely to take place in March or April. There are a number of potential announcements on deck, so an event would be a good opportunity for Apple to get them all out there. We've also been going back and forth on some iPhone 14 rumors, and we've taken a look at a number of...
att gigabit internet

AT&T Bringing $180/Month 5-Gigabit Internet to 70 Cities

Monday January 24, 2022 9:20 am PST by
AT&T today announced the launch of upgraded AT&T Fiber plans, which support speeds of up to 5 Gigabits for some customers. There are two separate plans, one "2 GIG" plan and one "5 GIG" plan, available to new and existing AT&T Fiber subscribers. According to AT&T, the new plans are available to nearly 5.2 million customers across 70 metro areas including Los Angeles, Atlanta, Chicago, San...
macbook pro 14 16 2021

Three Months After Launch, Apple Still Struggling to Meet Demand for Redesigned 14-Inch and 16-Inch MacBook Pro

Monday January 24, 2022 7:12 am PST by
Three months after their launch, the 14-inch and 16-inch MacBook Pros continue to experience high demand and seemingly short supply, with shipping dates for both models stretching into multiple weeks in several of Apple's key markets. In the United States, the baseline 14-inch MacBook Pro with the M1 Pro chip is estimated to ship in three to four weeks, promising an arrival by at least...
peloton tv workout cardio

Apple Floated as Potential Buyer of Peloton

Friday January 21, 2022 6:11 am PST by
Following months of bleak news about Peloton's "precarious state," including the revelation that it has halted production of its bikes and treadmills, Apple is being floated as a potential buyer of Peloton's troubled fitness business. Yesterday, CNBC reported that Peloton will temporarily stop production of its connected fitness products due to a "significant reduction" in consumer demand, a ...
Spring 2022 Apple Products Feature

New iPad Air, Macs, and iPhone SE With 5G Likely to Be Announced at Apple Event This Spring

Thursday January 20, 2022 8:32 am PST by
Earlier this week, Bloomberg's Mark Gurman tweeted that Apple "will be holding a spring event" to announce a new iPhone SE and other hardware. In a recent edition of his newsletter, Gurman said the event is likely to occur in March or April. Gurman did not elaborate on what "other hardware" will be announced at Apple's purported spring event, but rumors suggest at least four products are...