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iPhone 8 Said to Pack Battery Capacity of Current 5.5-Inch Model Into 4.7-Inch Form Factor

The so-called "iPhone 8" will adopt a higher-cost stacked logic board design to support longer battery life, according to KGI Securities analyst Ming-Chi Kuo.


Kuo said the stacked logic board, also known as a "substrate-like PCB mainboard," will result in the "iPhone 8" with an OLED display having similar dimensions to a 4.7-inch iPhone, yet comparable battery life to a 5.5-inch iPhone. He expects the device to have around a 2,700 mAh L-shaped two-cell battery pack.
As battery material tech isn’t likely to see major breakthroughs in the next 3-5 years, mainboard area can only be reduced via stacked SLP, which makes space for larger battery and extended usage time. Thanks to stacked SLP, we expect the OLED iPhone to have similar dimensions to a 4.7” TFT-LCD iPhone, and have comparable battery capacity (equipped with around 2,700 mAh L-shaped 2-cell battery pack) to a 5.5” TFT-LCD iPhone. The battery life of the OLED iPhone could be better than that of the 5.5” TFT-LCD model as OLED panels are more energy-efficient than their TFT-LCD counterparts.
Kuo added that the battery life of "iPhone 8" with an OLED display could be better than that of a 5.5" model with a traditional LCD display, as OLED panels are more energy-efficient than their LCD counterparts. For comparison, the iPhone 7 has a 1,960 mAh battery and the iPhone 7 Plus has a 2,900 mAh battery.



Top Rated Comments

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6 weeks ago

They should focus on emerging battery technologies and rather than trying to fit as much battery as possible into the design.

No one is ever happy, huh?
Rating: 48 Votes
6 weeks ago
That's really good, but couldn't they also make the phone 1mm thicker?
Rating: 22 Votes
6 weeks ago

That's really good, but couldn't they also make the phone 1mm thicker?


"A 1mm thick iPhone... I like it!!" -Jony Ive
Rating: 16 Votes
6 weeks ago
Guys, get ready. This is going to be expensive.
Rating: 15 Votes
6 weeks ago
It's f**king ridiculous that there are people b**ching in a post about an upcoming phone having a higher capacity battery.
Rating: 14 Votes
6 weeks ago

Guys, get ready. This is going to be expensive.


I don't care about price. I want the iPhone to continue to be very the best smartphone money can buy, and I'm willing to pay any price to ensure it remains at number one. Price considerations should never hold back innovation.
Rating: 9 Votes
6 weeks ago

They should focus on emerging battery technologies and rather than trying to fit as much battery as possible into the design.

That "3-5 years" period will remain the same if a large company like Apple don't invest in some of the new battery technologies.


Who says they are not doing that, plus exploring other options?
Rating: 9 Votes
6 weeks ago


There are some batteries out there that can charge in minutes, that don't explode, and that have a greater density.

That also don't stand up to the charge cycle amounts that Apple/The Entire Industry needs, or can't be massed produced yet.

We all know there are better battery technology on the way, the industry is investing like crazy in R&D. They'll get here, but it makes no sense to stand still in current tech while working on them.
Rating: 8 Votes
6 weeks ago
Like I've been saying, they will fit a 5.8" bezel-less screen on a footprint roughly the size of the iPhone 7. Amazing!
Rating: 8 Votes
6 weeks ago

Like a triangle?

Rating: 5 Votes

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