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iPhone Duo vs Galaxy Z Fold8 Ultra

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iPhone DuoOut of stockView
Galaxy Z Fold8 UltraOut of stockView

In a nutshell

The Fold8 Ultra is Samsung's camera foldable. It has an 8-inch inner screen, a 6.5-inch cover screen, a 200MP main camera and a 10MP 3x telephoto, at 4.1 mm thick open. The iPhone Duo answers with a 7.6-inch inner screen, IP68 protection, a titanium frame and iOS, but no telephoto.

The iPhone Duo suits you if you're staying on iPhone and want a foldable that shrugs off dust and water. The Galaxy Z Fold8 Ultra suits you if zoom, the biggest screens and a thinner body matter more.

Available models

iPhone Duo

Out of stock right now. View product page

Galaxy Z Fold8 Ultra

Out of stock right now. View product page

Durability

iPhone Duo 100/100
Galaxy Z Fold8 Ultra 85/100

The Duo is rated IP68 against the Ultra's IP48, and has a titanium frame. Both should get updates until around 2033.

Water and dust:IP68 to 6 metres on the Duo. The Ultra's IP48 keeps out water but only solid objects over 1 mm, so dust and sand are a risk.

Frame and glass:Grade 5 titanium and Ceramic Shield 2 on the Duo. Armour Aluminium and Gorilla Glass Ceramic 3 on the Ultra.

Software support:Samsung promises seven years of OS and security updates, to 2033. Apple doesn't publish a date, but expect around 2033 too.

Released

2026
2026

Updates until (est.)

2033
2033

Water resistance

IP68
IP48

Frame

Titanium
Armour Aluminium

Weight

254g
215gLighter

Release date

23 October 2026
7 August 2026

Front glass

Ceramic Shield 2
Gorilla Glass Ceramic 3

Dimensions

117.8 x 164.6 x 5.2 mm
158.4 x 143.2 x 4.1 mm

Biometrics

Touch ID (side button)
Side-mounted fingerprint

Security updates until

–
2033

Repairability

–
EU repairability class C

Performance

iPhone Duo 100/100
Galaxy Z Fold8 Ultra 100/100

Both run this year's flagship chips. The Ultra has 16GB of RAM on the 1TB model, otherwise 12GB like the Duo.

Chips:Apple's A20 Pro in the Duo, Snapdragon 8 Elite Gen 5 for Galaxy in the Ultra.

Cooling:Samsung fitted the Ultra with an expanded graphite cooling structure for long sessions.

Chip

A20 Pro
Snapdragon 8 Elite Gen 5 for Galaxy

RAM

12GB
–

Storage options

256GB, 512GB, 1TB, 2TB
256GB, 512GB, 1TB

AI features

Yes
Yes

Screen quality

iPhone Duo 97/100
Galaxy Z Fold8 Ultra 97/100

The Ultra has more screen inside and out. Both are 120Hz with a 3000-nit peak.

Inner screen:8 inches at 2504 x 2256 on the Ultra, 7.6 inches at 2670 x 1878 on the Duo. The Duo's nano-texture finish cuts reflections and crease visibility.

Cover screen:6.5 inches on the Ultra against 5.4 inches on the Duo. The Ultra is easier to use closed.

Screen size

7.6"
8"Bigger screen

Screen type

Super Retina XDR OLED
Dynamic AMOLED 2X

Refresh rate

120Hz
120Hz

Resolution

2670 x 1878
2504 x 2256

Peak brightness

3000 nits (maker figure)
3000 nits (maker figure)

Camera

iPhone Duo 55/100
Galaxy Z Fold8 Ultra 76/100

The Ultra wins. It adds a 3x telephoto and a 200MP main, and records 8K.

Zoom:A 10MP 3x telephoto on the Ultra. The Duo has no telephoto and uses a 2x crop from its main sensor.

Main camera:200MP on the Ultra against 48MP on the Duo. More pixels help when you crop in afterwards.

Ultrawide:48MP on the Duo, 50MP on the Ultra.

Main camera

48MP
200MPMore megapixels

Ultrawide

48MP
50MPMore megapixels

Telephoto

None
10MP

Optical zoom

None
3xMore zoom

Front camera

12MPSharper selfies
10MP

Video recording

4K 120fps Dolby Vision
8K 30fps

2x zoom

Crop from the main sensor, no telephoto lens
–

Battery

iPhone Duo 91/100
Galaxy Z Fold8 Ultra 82/100

The Duo has the longer rated video playback. The Ultra charges faster by cable.

Battery life:Apple rates the Duo at 31 hours of video on the inner screen and Samsung rates the Ultra at 27 hours. Different tests, so treat it as a guide.

Charging:45W wired on the Ultra, which Samsung says reaches 67% in around 30 minutes. The Duo reaches 50% in around 20 minutes with a 60W adapter. Wireless is 25W on the Duo and 20W on the Ultra.

Battery

–
5000mAh

Wired charging

–
45W

Wireless charging

MagSafe 25W, Qi2 25W
Qi 20W

Video playback (maker)

Up to 31 hours
Up to 27 hours

Connectivity

iPhone Duo 95/100
Galaxy Z Fold8 Ultra 90/100

Both have Wi-Fi 7, Bluetooth 6 and 5G. The port and the SIM set them apart.

Cable speeds:USB 3 at up to 10Gb/s on the Duo, USB 3.2 Gen 1 at 5Gb/s on the Ultra.

SIM:The Duo is dual eSIM only. The Ultra takes a nano-SIM plus an eSIM, or two nano-SIMs.

5G

Yes
Yes

Port

USB-C (USB 3, 10Gb/s)
USB-C (USB 3.2 Gen 1)

Wi-Fi

Wi-Fi 7
Wi-Fi 7

SIM

Dual eSIM
Dual Nano-SIM or Nano-SIM + eSIM

Bluetooth

Bluetooth 6
Bluetooth 6.0

Our verdict

Buy the iPhone Duo if you're on iPhone and want a foldable that is IP68 rated with longer rated video playback. Buy the Galaxy Z Fold8 Ultra if you want a telephoto, the biggest screens and the thinnest body, and dust protection isn't a worry. Neither phone is in refurbished stock yet, so check the availability section on this page.

Buy the iPhone Duo if

  • You're staying on iPhone
  • You want IP68 dust protection
  • You want longer rated video playback
View iPhone Duo

Buy the Galaxy Z Fold8 Ultra if

  • You want a 3x telephoto
  • You want an 8-inch inner screen
  • You want the thinnest foldable
View Galaxy Z Fold8 Ultra

FAQs

No. It has a 48MP main and a 48MP ultrawide, and its 2x zoom is a crop from the main sensor. The Fold8 Ultra has a 10MP 3x telephoto.

The Fold8 Ultra. Samsung lists it at 4.1 mm open and 8.9 mm closed. The Duo is 5.2 mm open and 11.3 mm closed.

The Fold8 Ultra, with an 8-inch inner screen and a 6.5-inch cover screen against the Duo's 7.6 and 5.4 inches.

Pristine, Excellent, Great and Good. Pristine has zero blemishes and at least 90% battery health. Good can show noticeable wear on the casing but works perfectly. Every grade is TechCheck certified and comes with a 12-month warranty.

Every phone comes with 30-day returns. Changed your mind? No problem.

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