iPhone Duo Compromises: Everything You Have to Give Up

The $1,999 iPhone Duo presents buyers with a folding screen, but it entails nearly 40 compromises compared to the iPhone 18 Pro and iPhone 18 Pro Max. At the same storage capacity, the iPhone Duo costs $800 more than the iPhone 18 Pro and $700 more than the Pro Max. Its standout feature is a unique design: a 5.4-inch outer display that unfolds into a 7.6-inch inner display, offering more space for reading and viewing content with the ability to run apps side by side.

All three devices share key features like the A20 Pro chip, ProMotion displays up to 120Hz refresh rates, a 48-megapixel Ultra Wide camera, MagSafe, and USB-C ports with USB 3 speeds.

However, opting for the foldable model means sacrificing some familiar features and adapting to differences in usage. Key compromises include:

- Face ID replaced by Touch ID via the side button, altering how users unlock the phone and authenticate purchases.

- The absence of a customizable Action button for functions like Silent mode, flashlight, Focus modes, and Shortcuts, although Camera Control remains available.

- No dedicated physical mute control, as MagSafe wallet compatibility is listed but wallet functionality is omitted due to the device's shape.

- Absence of physical SIM support in some markets, with only eSIM worldwide.

- A smaller outer display at 5.4 inches compared to the 6.3-inch and 6.9-inch displays on the iPhone 18 Pro and Pro Max, respectively.

- Lower pixel density on the inner display (430 ppi) compared to 460 ppi on both Pro models, while the outer display retains 460 ppi.

- A crease visible in certain lighting on the folding screen, unlike the crease-free Pro models.

- In the U.S., eSIM-only, while Pro models in markets like the UK and Australia retain a nano-SIM slot.

- A thinner, narrower, and lighter form factor (84.1mm wide, 11.3mm thick, 254 grams), making it 43 grams heavier than the Pro and five grams heavier than the Pro Max.

- Shorter typical battery life at 24 hours, while the Pro Max offers 30 hours.

- Slower wireless charging with up to 50% charge in 20 minutes, compared to 15 minutes on the Pro models.

- Lower sustained performance, with up to 35% better performance than the iPhone 17 Pro, versus up to 40% for the iPhone 18 Pro models.

- Fewer color options (Night Sky and Star White) compared to the Pro models' Black, Silver, Glacier, and Burgundy.

- 35% recycled content, lower than the Pro models' 40%.

- A $800 price premium over the iPhone 18 Pro and $700 over the Pro Max for equivalent storage.

- Higher AppleCare+ premiums ($199.99 annually) and lower screen-repair fees ($999) compared to the Pro models ($149.99 annually and $329 for screen damage).