Battery life is perennial concern with smartphones and iPhone is no different from others.
While there are incremental improvements year-on-year, Applfavorsally favours making the premium device ever-thinner and lighter, rather than beefing up the battery — however much customers might want it.
According to latest rumors about forthcoming iPhone 8, it might be getting hefty battery upgrade.
The technologies which are to be used inside the battery is not supposed to be getting wildly better but everything else is.
While the 2016’s iPhone 7 is only an incremental improvement on its predecessor and the iPhone 8 is expected to have radical design overhaul, including the edge-to-edge screen.
Accompanying this are two key changes that will boost battery life, Ming-Chi Kuo says:
The logic board in the iPhone 8 will have a “stacked” design — letting it take up less space, and leave more space for the battery. This, combined with the edge-to-edge screen, should let the iPhone have a bigger battery than in previous years while being smaller overall. Ming-Chi Kuo predicts it will be the same size as the 4.7-inch iPhone 7, but will come with a 5.1-5.2-inch screen, and a battery the similar size as the one in the (5.5-inch-screened) iPhone 7 Plus — 2,700 mAh (versus the 2,900mAh iPhone 7 Plus).
The iPhone 8 will have a more energy-efficient OLED screen, letting the battery last longer. The iPhone has historically come with LCD screen tech, but OLED uses less energy, meaning the battery could last longer compared to previous Plus models — despite having a (slightly) smaller battery.
Short Story: The next iPhone will be smaller, but the battery will be bigger and screen will be better and more efficient
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For the time being, these all are unconfirmed rumors and Apple never (almost never) comment on its products before they are officially announced. But it’s worth mentioning here that Ming-Chi Kuo has a solid track record for breaking iPhone news.
There have been reports circulating for a while that the iPhone 8 will have a “full-face” screen. And on Monday, the Korea Herald reported that Samsung’s display business has received a contract from Apple for 60 million OLED display units.
Apple might launch three variants of its iPhone in Autumn in different sizes — one of which will be official iPhone 8, it is also called iPhone X in few rumors.
Here’s a quote from Ming-Chi Kuo
“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.”