Samsung Galaxy Z Flip8 vs Apple iPhone Duo: which should you buy?

Our pick

Galaxy Z Flip8 for a compact flip that folds shut top to bottom
iPhone Duo for a book-style foldable with bigger screens and better dust protection

Samsung Galaxy Z Flip8

$1,079.99 (256GB)

Get it if

You use an Android phone.
You prefer a flip that folds shut top to bottom over a book-style fold.

Buy at Amazon$1,079.99

Checked Nov 15, 2026 · We may earn a commission.

Apple iPhone Duo

$1,999 (256GB)

Get it if

You use an iPhone.
You want the bigger screens: 7.6 inches inside and 5.4 on the cover.
You want better dust protection: IP68 to the Flip8's IP48.

Buy at Apple$1,999

Checked Nov 15, 2026 · We may earn a commission.

Get the Galaxy Z Flip8 if you want a compact flip that folds shut top to bottom, and Android. Get the iPhone Duo if you want bigger screens inside and out, better dust protection (IP68 to the Flip8's IP48) and iOS.

What's different

How they fold
The Galaxy Z Flip8 is a clamshell flip: it folds shut top to bottom. Open, it is a 6.9-inch phone; closed, you use the 4.1-inch cover screen. The iPhone Duo folds like a book and opens to a 7.6-inch inner screen and has a 5.4-inch cover screen, so it is the bigger device both ways.
Water and dust rating
Galaxy Z Flip8IP48
iPhone Duo (leads)IP68
Apple rates the iPhone Duo IP68 for splash, water and dust. Samsung rates the Flip8 IP48, sealed for water but not for dust.
Thickness
Galaxy Z Flip813.1 mm closed, 6.1 mm open
iPhone Duo11.3 mm closed, 5.2 mm open
The Galaxy Z Flip8 weighs 180 g (6.35 oz) to the iPhone Duo's 254 g (8.96 oz). Closed, the Flip8 is 13.1 mm thick and the Duo 11.3 mm; open, 6.1 mm and 5.2 mm.
Software
Galaxy Z Flip8Android 17, One UI 9
iPhone DuoiOS
The Galaxy Z Flip8 runs Android 17 with One UI 9. The iPhone Duo runs iOS.
Battery ratings, by Samsung's and Apple's own tests
Samsung rates the Flip8 for up to 31 hours of video playback; Apple rates the iPhone Duo for up to 31 hours on the inner screen and 44 on the cover screen, each by its own test.

What's the same

A dual rear camera: a wide main camera with 2x optical-quality zoom and an Ultra Wide, with no separate telephoto lens
A fingerprint sensor for unlocking
256GB of storage to start

Tale of the Tape

Galaxy Z Flip8

iPhone Duo

Galaxy Z Flip8: Clamshell flip Fold styleiPhone Duo: Book-style, inner and outer screens
Galaxy Z Flip8: 6.9-inch inside, 4.1-inch cover Screen sizeiPhone Duo: 7.6-inch inside, 5.4-inch cover
Galaxy Z Flip8: IP48 Water and dust ratingiPhone Duo: IP68 ✓
Galaxy Z Flip8: Up to 31 hrs Video playback (rated)iPhone Duo: Up to 31 hrs (inner screen), 44 hrs (cover screen)
Galaxy Z Flip8: 13.1 mm closed, 6.1 mm open ThicknessiPhone Duo: 11.3 mm closed, 5.2 mm open
Galaxy Z Flip8: 180 g (6.35 oz) WeightiPhone Duo: 254 g (8.96 oz)
Galaxy Z Flip8: Android 17, One UI 9 SoftwareiPhone Duo: iOS

FAQs

Which should you buy, the Galaxy Z Flip8 or the iPhone Duo?

The Galaxy Z Flip8 if you want a compact flip that runs Android; the iPhone Duo if you want bigger screens and better dust protection.

Which has better battery life, the Galaxy Z Flip8 or the iPhone Duo?

Samsung rates the Flip8 for up to 31 hours of video playback, and Apple rates the iPhone Duo for up to 31 hours on the inner screen and 44 on the cover screen. Samsung and Apple each run their own test, so the figures are not set against each other.

Which is lighter, the Galaxy Z Flip8 or the iPhone Duo?

The Galaxy Z Flip8, at 180 g (6.35 oz) to the iPhone Duo's 254 g (8.96 oz).

Which has the bigger screens, the Galaxy Z Flip8 or the iPhone Duo?

The iPhone Duo: 7.6 inches inside and 5.4 inches on the cover, to the Flip8's 6.9 and 4.1.