iPhone Duo vs. Galaxy Z Fold 8: Which Foldable Should You Buy?

Quick Verdict: Who Should Buy Which?

Which Samsung Model Is the Duo’s Real Rival?

A Galaxy Z Fold is Samsung’s book-style foldable: it opens like a book, from a regular-sized phone into a small tablet. Samsung announced two Fold 8 models in July. The standard Galaxy Z Fold 8 has a shorter, wider 7.6-inch inner screen, the same passport-style shape as the Duo. The Galaxy Z Fold 8 Ultra has a taller, narrower inner screen of around 8 inches.

This guide uses the standard Fold 8 because its proportions match the Duo’s. If the Ultra is on your shortlist, the crease and software sections still apply. Size, weight and price will not.

Specs at a Glance

Source: Tom’s Guide’s comparison, published October 26, 2026. Prices are US launch prices.

Price, Storage and Availability

In the US, the Duo starts at $1,999 for 256 GB and the Fold 8 at $1,899. The $100 gap holds at 512 GB ($2,199 vs $2,099) and 1 TB ($2,599 vs $2,499). The Duo also comes in a 2 TB model at $3,199, which Samsung doesn’t offer. Outside the US the gap is wider: £1,999 vs £1,699 in the UK, and AU$3,499 vs AU$2,699 in Australia.

Stock is the bigger difference right now. The Duo went on sale on October 23. When Tom’s Guide published its comparison on October 26, every carrier and retailer was sold out, the earliest delivery was the end of November, and most estimates ran into late December and January. The Fold 8 was in stock and discounted at some retailers. Check current availability before you plan around either phone.

Weight, Size and Everyday Handling

The Duo weighs 254 g, which is 53 g more than the Fold 8 and makes it the heaviest iPhone Apple has built. It is also thicker, at 11.3 mm closed against 9.7 mm, and 5.2 mm open against 4.5 mm. Tom’s Guide’s review lists the weight among the Duo’s drawbacks. The outer screens are close in size, at 5.4 inches on the Duo and 5.5 inches on the Fold 8.

A case adds to both numbers, so choose a slim one if weight is your main concern. Hold both phones in a store if you can, because weight is hard to judge from a spec sheet.

Is Either Foldable Really Creaseless?

No. Neither phone removes the physical fold. Both make it less noticeable, and how much you see depends on the lighting, the viewing angle, the screen finish and how long you’ve had the phone.

What Apple and Samsung Say

Apple describes the Duo’s matte nano-texture finish as a way to cut glare and minimize crease visibility. It doesn’t claim the crease is gone. Samsung’s answer on the Fold 8 is a titanium backing called Flex Titanium: a titanium alloy film and plate with micro-patterned holes that support the screen and flatten the fold. Samsung says it reduced the crease significantly. Tom’s Guide still found a single, clearly defined crease you can feel with a fingertip, while 9to5Google called the improvement over the Fold 7 a huge one.

What Testers and Owners Have Found

The results don’t line up neatly, so here they are side by side.

Engadget pointed out before launch that it would take a long time to learn how the Duo’s crease behaves. The mixed results above bear that out.

Which One Hides It Better?

On a new phone, the Duo does. PhoneArena found that a new Duo hides its crease better than the Fold 8, and the matte screen also cuts reflections. The trade-off is color: Tom’s Guide found the nano-texture display less saturated and lower in contrast than the Fold 8’s glossy one. If you care more about punchy color than about hiding the fold, the Fold 8 may suit you better. For long-term wear, treat any firm claim from either side as unproven.

Software, Multitasking and App Support

This is where the Fold 8 pulls ahead. The Duo runs two apps side by side in Split View. Tom’s Guide found that its taskbar is fixed to the right side with no option to move it, and that two-app multitasking is less consistent in portrait. The Fold 8 allows up to three split-screen apps and up to five floating windows, and it has Samsung DeX, a desktop mode the iPhone doesn’t offer.

App support is the other gap. Apple has worked with major apps on the larger screen, but Tom’s Guide’s review notes that apps that haven’t been optimized look poor on the Duo. Samsung has had a head start of several years with large-screen apps.

The Duo has one advantage here: it works with the Apple Pencil (USB-C), and the Fold 8 doesn’t support a stylus. On updates, the Fold 8 runs Android 17 and gets up to seven OS updates, according to PhoneArena’s spec sheet.

If you’re coming from an iPhone, keep in mind that iMessage and AirDrop don’t work on Android, and an Apple Watch can’t pair with an Android phone. Tom’s Guide’s own verdict is that the Fold 8 suits people who put software first, and the Duo suits people who like Apple products and want the more capable hardware.

Cameras

Both phones have two rear cameras and no telephoto lens. The Duo has a 48 MP main and 48 MP ultrawide, and the Fold 8 has a 50 MP main and 50 MP ultrawide. In Tom’s Guide’s photo tests the Duo came out ahead overall, with better low-light shots and a sharper outer selfie camera. The Fold 8’s brighter processing washed out some background detail, but it held up better at 10x zoom, where the Duo looked blurry.

On the inside, the Duo uses an under-display camera meant for FaceTime and video calls rather than selfies, while the Fold 8 has a hole-punch camera. The Duo also has a Camera Control button on the side but no Action button.

Battery Life and Charging

The batteries are close in size, at 4,883 mAh in the Duo and 4,800 mAh in the Fold 8, but they didn’t perform alike. In Tom’s Guide’s current battery test, the Duo lasted 13 hours 20 minutes and the Fold 8 lasted 10 hours 6 minutes. The Fold 8 managed 12 hours 19 minutes in an earlier version of the test, so only compare numbers from the same version.

Charging is a closer call. The Duo supports 60 W wired and 25 W wireless charging, the Fold 8 45 W and 20 W. After 30 minutes on a wired charger, the Fold 8 had reached 70% and the Duo 66%.

The bigger difference is magnets. The Duo has them built in, so MagSafe and Qi2 chargers snap on. The Fold 8 supports Qi2 but has no internal magnets, and its charging coil sits low on the back, so it has to be lined up carefully on a standard pad. Magnetic alignment on the Fold 8 comes from a case with a magnet ring.

Some Duo owners on Reddit say the phone runs warm on a wireless charger, even with a case on, according to BGR. That is an early report, not a confirmed fault. We cover charging heat in the FAQ of our iPhone 18 & iPhone Duo Setup Guide.

Durability, Water Resistance and Repair Risk

Both phones handle brief submersion, but only the Duo is sealed against dust. That is the difference between IP68 and IP48.

The hinge and the inner screen are the weak points on any foldable. iFixit called the Duo the most repairable foldable it has taken apart, but said its screen is a serious problem. Some early owners have reported inner-screen cracks soon after unboxing, including a Reddit user who said the screen cracked before setup finished, according to Information Age. These are individual reports, and no failure rate has been published.

On scratches, HTX Studio’s pencil test found that a 6H pencil left light marks on the Duo’s inner screen that showed under bright light but couldn’t be felt, while an 8H pencil left marks you could feel.

Samsung has been making foldables for years, and the Duo is Apple’s first. If you’re deciding whether to buy now or wait, our guide to the iPhone 18 Pro, Pro Max and iPhone Duo covers buying now versus waiting for 2027.

Cases, Screen Protectors and Chargers

Accessories are where the two phones differ most. ESR sells accessories for the Duo, so this section sticks to what differs between the two phones.

The Duo has magnets built in, and most Duo cases add their own, so MagSafe chargers, wallets and mounts keep working with a case on. The Fold 8 has no magnets, so a case with a built-in magnet ring is what lets it attach to magnetic chargers and car mounts. If you buy one, check that the ring sits over the charging coil and that the case leaves the hinge free to move.

Most Duo cases come in two pieces with a gap at the hinge, and some add a cover over the hinge itself. ESR’s iPhone Duo cases are fitted to the retail phone so it folds smoothly and closes fully, and they support MagSafe. Selected designs add hinge-area coverage, and the Flex Stand versions support the phone in both folded and open positions. The Camera Control button is left open through a cutout, so you press it directly. The range includes Classic Hybrid (clear), Atelier (vegan leather) and Cyber Tough (rugged). Our case buying guide compares them model by model.

For the Duo’s screens, ESR makes model-specific protectors, listed on the iPhone Duo screen protector page.

For charging, the Cyclone 25W Magnetic Charging Pad works with the Duo, and the Setup Guide covers stands, wallets and chargers for a foldable iPhone.

For Samsung phones, see the Samsung section of the ESR store.

Which Should You Buy?

Choose the iPhone Duo if you already use an iPhone and an Apple Watch, want the longer battery life, plan to use MagSafe accessories or need dust protection. Expect to pay $100 more and to wait for stock.

Choose the Galaxy Z Fold 8 if you’ll use split-screen and floating windows every day, want a lighter and thinner phone, or want to buy now and save $100.

Consider a regular phone if you want a telephoto lens, since neither foldable has one, or if weight bothers you. If you’re choosing between the Duo and a standard iPhone rather than a Samsung, read iPhone 18 Pro vs. Pro Max vs. iPhone Duo.

FAQ

Sources

• Apple — iPhone Duo Technical Specifications
  Used for official dimensions, weight, displays, storage, charging, MagSafe, durability and Apple Pencil support.
• Samsung — Galaxy Z Fold 8 Official Product Page
  Used for official dimensions, weight, display, battery, cameras, IP rating and multitasking features.
• Tom’s Guide — iPhone Duo vs. Galaxy Z Fold 8
  Used for side-by-side battery, camera, charging, display and software comparisons.
• iFixit — iPhone Duo Teardown
  Used for the Duo’s internal construction, nano-texture display and explanation of crease visibility.
• Independent crease durability testing
  Used for observations on how the Duo’s crease may change after repeated folding. Long-term results are still developing.

What Changed

November 2026: Replaced the pre-launch iPhone Fold rumors with details from the iPhone Duo and Galaxy Z Fold 8 launches, added crease test results, and rewrote the accessories section around what differs between the two phones.