iPhone Duo or iPad mini: Which device is worth it?

This article may contain affiliate links. Learn more on our Partner Program page.

One gram. That's how much separates the unfolded iPhone Duo from the new iPad mini. Both are powered by an A20 Pro chip, both have an OLED display, and both are water-resistant. However, there's still a price difference of around €1,500 between them.

With the new iPad mini, which Apple unveiled in the Newsroom on October 26, the two devices move even closer together than before. The tablet gets the same chip as the foldable iPhone, an 8.5-inch OLED display, and a 5.4-millimeter chassis. All specifications and prices for the tablet are in the iPad mini (A20 Pro) overview, and those for the phone in the iPhone Duo overview. How the Duo stacks up against the thinnest iPhone is answered in the comparison with the iPhone Air. This article is about the line between phone and tablet: is the second device still needed? The answer depends on three calculations – screen area, weight, and total cost. The basis is Apple's technical specifications for the iPad mini and for the Duo.

Key Facts at a Glance

• The iPad mini offers a good 21 percent more display area than the unfolded Duo, even though the diagonal is only 0.9 inches larger.
• The duo weighs 254 grams, the iPad mini with Wi-Fi 255 grams – the weight no longer speaks in favor of the phone.
• Both use the A20 Pro; the iPad mini has a 5-core CPU in the 128GB and 256GB models instead of the 6-core CPU in the Duo.
• An iPhone 17 plus iPad mini costs €1,848 together, which is €451 less than the duo alone.
• The Duo has the edge when it comes to the display (ProMotion, 3,000 nits outdoors), while the iPad mini has the edge when it comes to the stylus (Apple Pencil Pro with hover function).

How large the difference in area really is

The diagonals suggest a close difference: 7.6 inches for the Duo's inner display, 8.5 inches for the iPad mini. In reality, the difference is greater because the screen area increases quadratically with the diagonal.

The Duo's 1878 x 2670 pixel resolution at 430 ppi results in a screen area of approximately 27.1 square inches. The iPad mini, with 2316 x 1512 pixels at 326 ppi, offers roughly 33.0 square inches. That's a good 21 percent more screen space for the tablet – and a good four percentage points more than its 8.3-inch predecessor, which had a screen area of approximately 31.7 square inches.

Then there's the form factor. The Duo's display has a 1.42:1 aspect ratio, while the iPad mini's is 1.53:1. The tablet's more elongated format is better for reading in portrait mode and sketching, while the Duo's more compact format is better for two apps side-by-side – allowing two apps to be opened simultaneously using Split View.

Same chip, same weight

Until this fall, weight was a key selling point for the duo. The old iPad mini weighed 293 grams, 39 grams more than the unfolded iPhone. The new model weighs 255 grams with Wi-Fi and 263 grams with cellular connectivity. The difference is therefore one and nine grams, respectively.

There's no longer a difference in the chip either. Both devices use the A20 Pro and a 7-core GPU. The only difference lies in the CPU: The Duo has six cores across the board, while the iPad mini has five cores in the 128GB and 256GB models, and six cores only in the 512GB version. Anyone buying the tablet for computationally intensive apps should keep this in mind when choosing storage options.

The devices are also very similar in thickness. The Duo measures 5.2 millimeters when unfolded, while the iPad mini measures 5.4 millimeters. When folded, the Duo is 11.3 millimeters thick – making it easy to slip into a trouser pocket.

Where the devices diverge technically

Feature	iPhone Duo	iPad mini (A20 Pro)
Display	7.6″ inside, 5.4″ outside, OLED	8.5″ OLED
Refresh rate	ProMotion up to 120 Hz	without ProMotion
Brightness	up to 3,000 nits outdoors	600 nits, 1,200 nits HDR peak
Chip	A20 Pro, 6-core CPU, 7-core GPU	A20 Pro, 5-core CPU (6-core from 512 GB), 7-core GPU
Weight	254 g	255 g (Wi-Fi), 263 g (mobile network)
Thickness	5.2 mm unfolded, 11.3 mm folded	5.4 mm
Rear cameras	two 48MP cameras	a 12 MP camera
Water protection	IP68	IP67
Cellular	Dual eSIM as standard	eSIM, only in the mobile phone model
Unlock	Touch ID in the side button	Touch ID in the top button
Apple Pencil	Apple Pencil (USB-C)	Apple Pencil Pro and Apple Pencil (USB-C), with hover function
Storage	256 GB to 2 TB	128 GB to 512 GB
Price	from 2,299 euros	from 749 euros

The Duo retains the upper hand when it comes to displays. While the iPad mini gets an OLED display, it lacks ProMotion, and its peak brightness is 1,200 nits for HDR content. The Duo, on the other hand, reaches up to 3,000 nits outdoors.

It's the other way around with the stylus. The iPad mini supports the Apple Pencil Pro, including its hover function. The Duo only works with the USB-C Apple Pencil, and this support comes with iOS 27.2 – the phone ships with iOS 27.1.

The bill with two devices

The most interesting comparison isn't device against device, but device against device pair. The duo starts at €2,299 with 256 GB. An iPhone 17 starting at €1,099 and an iPad mini starting at €749 together cost €1,848 – €451 less, with two separate batteries and two screens that can be used simultaneously.

In the high-end segment, the price difference shrinks almost to zero. An iPhone 18 Pro starting at €1,449 plus an iPad mini comes to €2,198, which is only €101 less than the duo. Compared to its predecessor, which last cost €679, the combined price is now €70 lower.

Combination	Price	Difference to the iPhone Duo (2,299 euros)
iPhone 17 + iPad mini (128GB)	1,848 euros	451 euros cheaper
iPhone 17 + iPad mini (256GB)	1,978 euros	321 euros cheaper
iPhone 18 Pro + iPad mini (128GB)	2,198 euros	101 euros cheaper

The price difference is most pronounced when storage capacity is the same: €2,299 for the 256GB iPad mini compared to €879 for the 256GB iPad mini. Those who want to use the tablet on the go without an iPhone hotspot will pay from €919 for the cellular model. Which storage capacity and model are best for your tablet is explained in the iPad buying guide, while the comparison between the iPad mini and iPad Air highlights the differences between the larger iPad models.

How timing affects the decision

The duo has been available since October 23rd. The iPad mini can be pre-ordered starting October 28th and will be in stores on November 6th. Apple no longer offers the previous model with the A17 Pro; the differences between the two generations are shown in the comparison of the iPad mini A20 Pro and A17 Pro.

Both devices will be available side-by-side in Apple Stores from the beginning of November. Anyone undecided between the two can then handle them directly – with two devices that are virtually identical in weight on paper, the physical feel in your hand is more decisive than any chart.

One screen or two devices

With the new iPad mini, the duo loses two advantages it previously held over the tablet: its lighter weight and more powerful chip. What remains are the brighter display with ProMotion, the better camera, and the fact that there's one less device in your pocket. The tablet, on the other hand, offers more screen real estate, a better stylus, and costs a fraction of the price.

I've been using the Duo myself since its release; my initial impressions after the first few days are in a separate report. For me, the more honest question isn't which device wins, but whether one screen is enough. If you primarily use your tablet in the evenings on the sofa for reading and watching videos, the Duo will likely replace it. However, if you use it for drawing, taking notes with the stylus, or alongside your phone, it won't replace anything – in that case, you're essentially buying an expensive iPhone with the Duo and still keeping your iPad.

For most, the combination of an iPhone and a tablet remains the better deal, as long as a stylus or dual screens are a consideration. The Duo offers convenience, not additional screen space. Those already leaning towards the iPhone 18 Pro should still do the math: a €101 difference isn't much for a second device. The iPhone buying guide helps you determine which iPhone is right for you; all articles on both devices are grouped together on the iPhone Duo and iPad mini topic pages.

Would you give up one device for the duo – or does the new iPad mini, weighing just 255 grams and featuring an OLED display, make you want to stick with two devices? Let us know in the comments which device you would ultimately give up.

Frequently Asked Questions: iPhone Duo or iPad mini