Here’s how iPhone Duo’s battery capacity compares to other iPhones

After pre-orders for iPhone Duo opened, Apple uploaded an EU regulatory document that finally revealed the true battery capacity for iPhone Duo: 4883mAh. Here’s how that compares to other iPhones. Here’s how iPhone Duo’s battery capacity compares to other iPhones.

IPhone Duo now available to pre-order, prices start at $1,999 Chance Miller Oct 16 2026.

Apple’s iPhone Duo likely forecasts a shift in the market toward foldables becoming more common. But it took a while to get here.

From the Royole FlexPai to the iPhone Duo: How the modern foldable phone has evolved. The 1984 "brick" phone (DynaTAC 8000X) required users to carry over 1.7 pounds of weight for only half an hour of talk time, at a hefty price tag of $3,995.

Foldable phones are not so troublesome, but I still struggled to fit the Samsung Galaxy Z Fold 4 in my pocket when I first got it. What’s more, the size of it kept prompting friends to ask why I was carrying two phones around.

I wish I had been, for at least it would mean one would have a decent camera. Still, the moment when the phone unfolded and the screen adjusted to the larger size was as awe-inspiring back then as it is now.

Today, after having gotten my hands on some newer models, I have become very impressed by the lengths foldable technology has reached. Models including the Google Pixel 11 Pro Fold and the Samsung Galaxy Z Fold 8 have propelled the technology forward.