Which has the bigger battery, the Apple iPhone Duo or the Samsung Galaxy Z Fold8?

The Apple iPhone Duo has the bigger battery: 4,883 mAh against 4,800 mAh. Real battery life also depends on the chip and screen.

Apple iPhone Duo vs Samsung Galaxy Z Fold8

The Apple iPhone Duo comes out ahead on 5 counts and the Samsung Galaxy Z Fold8 on 4.

Which should you buy?

Pick the Apple iPhone Duo for

Faster wireless charging: 25 W vs 20 W
More compact folded: 6.1 mm shorter
More storage: up to 2 TB vs 1 TB
Better water resistance: IP68 vs IP48
Supports a stylus

Pick the Samsung Galaxy Z Fold8 for

Lighter: 201 g vs 254 g (53 g less)
Thinner folded: 9.7 mm vs 11.3 mm
Thinner unfolded: 4.5 mm vs 5.2 mm
More RAM: up to 16 GB vs 12 GB

Size comparison

Folded, the Apple iPhone Duo is 6.1 mm shorter, 2.2 mm wider, 1.6 mm thicker and 53 g heavier than the Samsung Galaxy Z Fold8. Unfolded, it is 6.1 mm shorter, 3.2 mm wider and 0.7 mm thicker.

Apple iPhone Duo117.8 × 84.1 × 11.3 mm folded
Samsung Galaxy Z Fold8123.9 × 81.9 × 9.7 mm folded

Specs side by side

Launch	Apple iPhone Duo	Samsung Galaxy Z Fold8
Announced	September 9, 20261	July 22, 20261
Released	October 23, 2026	August 7, 20261
Launch price	$1,9991	—

Body	Apple iPhone Duo	Samsung Galaxy Z Fold8
Size	117.8 × 84.1 × 11.3 mm folded	123.9 × 81.9 × 9.7 mm folded1
Unfolded size	117.8 × 164.6 × 5.2 mm	123.9 × 161.4 × 4.5 mm1
Thickness	11.3 mm folded, 5.2 mm open	9.7 mm folded, 4.5 mm open1 (better)
Weight	254 g	201 g (better)
Frame	Titanium	Armor Aluminum
Back	Ceramic Shield	Corning Gorilla Glass Victus 2
Water resistance	IP68 (better)	IP481
Colours	Night Sky, Star White	Cream, Graphite, Lavender, Pistachio1

Display	Apple iPhone Duo	Samsung Galaxy Z Fold8
Size	7.6"	7.6"
Cover screen	5.4"	5.5"
Type	OLED	Foldable Dynamic LTPO AMOLED 2X1
Resolution	1878 × 2670 (better)	1848 × 24481
Refresh rate	120 Hz	120 Hz1
Peak brightness	3,000 nits	3,000 nits1
Protection	Ceramic Shield 2	Corning Gorilla Glass Ceramic 3

Performance and software	Apple iPhone Duo	Samsung Galaxy Z Fold8
Chipset	A20 Pro	Snapdragon 8 Elite Gen 5 for Galaxy
CPU	6-core (2 super cores, 4 efficiency cores)	—
Process	2 nm1 (better)	3 nm1
Ships with	iOS 27	Android 17 (One UI 9)1
OS updates	—	7 years (to Aug 2033)1
Security updates	—	7 years (to Aug 2033)1

Memory	Apple iPhone Duo	Samsung Galaxy Z Fold8
RAM	12 GB1	12 GB / 16 GB (better)
Storage	256 GB / 512 GB / 1 TB / 2 TB (better)	256 GB / 512 GB / 1 TB
Card slot	No1	No

Cameras	Apple iPhone Duo	Samsung Galaxy Z Fold8
Rear	48 MP Main, OIS 48 MP Ultrawide	50 MP Main 50 MP Ultrawide
Main camera	48 MP	50 MP
Optical zoom	None	None
Front	12 MP	10 MP
Video	4K Dolby Vision at 120 fps (Fusion Main)	8K

Battery	Apple iPhone Duo	Samsung Galaxy Z Fold8
Capacity	4,883 mAh1	4,800 mAh
Wired charging	—	45 W1
Wireless charging	25 W (better)	20 W1
Reverse wireless	—	Yes1

Connectivity	Apple iPhone Duo	Samsung Galaxy Z Fold8
5G	Yes	Yes1
Wi-Fi	Wi-Fi 7 (802.11be)	Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct1
Bluetooth	6	Bluetooth 6.01
NFC	Yes	—
USB	USB-C with DisplayPort, USB 3 (up to 10Gb/s)	USB Type-C 3.2 Gen 1, OTG1
eSIM	Yes	Yes
Satellite messaging	Yes	—

Features	Apple iPhone Duo	Samsung Galaxy Z Fold8
Fingerprint	Side button (Touch ID)	Side-mounted1
Stereo speakers	Yes1	Yes1
Stylus	Yes1	No1

Highlighted: the better value where one is clearly better. Sources for each phone are listed on the Apple iPhone Duo and Samsung Galaxy Z Fold8 pages.

Quick answers

Is the Apple iPhone Duo bigger than the Samsung Galaxy Z Fold8?: Folded, the Apple iPhone Duo is 6.1 mm shorter, 2.2 mm wider, 1.6 mm thicker and 53 g heavier than the Samsung Galaxy Z Fold8. Unfolded, it is 6.1 mm shorter, 3.2 mm wider and 0.7 mm thicker.
Which has the bigger battery, the Apple iPhone Duo or the Samsung Galaxy Z Fold8?: The Apple iPhone Duo has the bigger battery: 4,883 mAh against 4,800 mAh. Real battery life also depends on the chip and screen.