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Apple's 'iPhone 8' to boast larger Plus-sized battery in form factor similar to 4.7" iPhone 7

'iPhone 8' concept rendering by Marek Weidlich.

Last updated

By shrinking components inside of its next-generation flagship iPhone, Apple apparently plans to squeeze a Plus-sized battery into a smaller form factor, new details reveal.

Analyst Ming-Chi Kuo of KGI Securities expects that Apple will fit a 2,700 mAh battery inside of the so-called "iPhone 8," expected to launch later this year. That would put the battery capacity on par with the current iPhone 7 Plus, despite having a smaller form factor.

In fact, with a 5.1- to 5.2-inch edge-to-edge OLED display, Kuo indicated that the "iPhone 8" or "iPhone X" will carry dimensions similar to the 4.7-inch iPhone 7.

He revealed that Apple plans to accomplish this with a stacked logic board, called a substrate-like PCB mainboard. Shrinking the components themselves is necessary, Kuo said, because battery technology is not expected to improve in the next 3 to 5 years.

In addition, thanks to the use of a low-power OLED panel, Kuo said that the battery life of the "iPhone 8" could be even better than a 5.5-inch LCD iPhone.

With an OLED screen, "black" (unused) pixels are not lit, and therefore do not require as much power as illuminated pixels. With an LCD screen, the entire panel is backlit — even black pixels — which can reduce battery life, particularly if the backlight is set to a brighter option.

If Apple were to include a "dark mode" option in a future version of iOS, it could offer even greater battery savings with an OLED display. The company already uses this same approach with the Apple Watch, featuring largely black backgrounds in watchOS to take advantage of the wearable device's OLED screen.

Details on battery life come on the heels of news that Apple has officially joined the Wireless Power Consortium. It's expected that the "iPhone 8" — as well as LCD-based "iPhone 7s" models — will include wireless inductive charging, based upon the Qi standard overseen by the consortium.

The combination of wireless quick charging capabilities and better-than-ever battery life could satisfy consumer needs for more uptime on their iPhone.

Beyond battery improvements and an edge-to-edge OLED display, the handset is also expected to feature a curved glass back and entirely new industrial design. It's rumored that Apple could embed key components of the device — including the earpiece speaker, Touch ID sensor and FaceTime camera — beneath the OLED screen, allowing for a seamless appearance on the front of the device.

All three handsets — the 4.7-inch "iPhone 7s," the 5.5-inch "iPhone 7s Plus," and the 5.1- to 5.2-inch "iPhone 8" are expected to debut in Apple's normal September timeframe later this year. It has been suggested that the "iPhone 8" could cost upwards of $1,000.



19 Comments

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DonlanMatt 8 Years · 21 comments

Starting to sound better and better, this is the phone a lot of us longtime users have been waiting on. Same size chassis as the 4.7 but with all screen/bigger screen and you can still use with one hand. Also if they make the battery that good and better than a 7 Plus battery life, then I can welcome regular inductive charging with open arms like the watch, if the phone really lasts all day long with 15-20% battery life left when set down for bed on its charging pad like the watch.

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Metriacanthosaurus 8 Years · 880 comments

Starting to sound better and better, this is the phone a lot of us longtime users have been waiting on. Same size chassis as the 4.7 but with all screen/bigger screen and you can still use with one hand. Also if they make the battery that good and better than a 7 Plus battery life, then I can welcome regular inductive charging with open arms like the watch, if the phone really lasts all day long with 15-20% battery life left when set down for bed on its charging pad like the watch.

iPhone hasn't be a fully one handed device since the 4S. That isn't coming back.

And the 7 Plus already has insane battery life. I regularly put on the charger at night with 50% of battery (same with Apple watch).

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wood1208 10 Years · 2939 comments

This is new. Previous info was iPhone 8 will be 5.8" OLED display size with usable screen size 5.1-5.2". How can you fit that into 4,7" frame ?

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staticx57 10 Years · 405 comments

wood1208 said:
This is new. Previous info was iPhone 8 will be 5.8" OLED display size with usable screen size 5.1-5.2". How can you fit that into 4,7" frame ?

Less bezel more screen

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rob55 15 Years · 1291 comments

sog35 said:

the 5/5s is definitely a 1 handed device, unless you have smaller than average hands

The 6/7 is very close to a 1 handed device for most uses.

I find that I have physically shift my iPhone 7 Plus up and down in my hand to be able to reach everything, but I do manage mostly one-handed operation. Having the same size screen in the smaller form factor would be awesome.