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The Galaxy Z Fold6 is the pick if you want a phone that opens into a 7.6-inch workspace; the Galaxy S25 Ultra is the better fit for a conventional flagship with an integrated S Pen and a 200MP main camera. Samsung’s March 2025 US price list put the 256GB Fold6 $600 above the 256GB S25 Ultra, but that historical MSRP gap does not establish what either phone costs today.
At a glance: Galaxy Z Fold6 vs. Galaxy S25 Ultra
| Feature | Galaxy Z Fold6 | Galaxy S25 Ultra |
|---|---|---|
| Design and display | Book-style foldable, with a 7.6-inch main display and 6.3-inch cover display; Samsung describes both as 120Hz. | Conventional phone with a 6.9-inch-class display. |
| Processor | Snapdragon 8 Gen 3 | Snapdragon 8 Elite for Galaxy |
| Rear camera hardware | 50MP wide, 12MP ultrawide, and 10MP telephoto | 200MP wide camera highlighted by Samsung |
| Battery capacity | 4,400mAh | 5,000mAh |
| Stylus | Supports S Pen Fold Edition; check whether it is included in your regional bundle. | S Pen built into the phone |
| US list-price reference | $1,899.99 for 256GB unlocked in Samsung’s March 2025 price file | $1,299.99 for 256GB in Samsung’s March 2025 price file |
Samsung publishes these specifications; they are not results from a controlled comparison test. The S25 Ultra’s newer-named processor and higher main-camera megapixel count do not, by themselves, establish a measured performance or photo-quality winner.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Samsung Galaxy Z Fold7, 512GB, Jet Black - Unlocked (Renewed) | $1,073.00 | Buy on Amazon |
| 2 |
|
Samsung Galaxy Z Fold8 Ultra Unlocked Android Smartphone, 512GB Graphite | $2,989.99 | Buy on Amazon |
Which phone should you choose?
Choose the Galaxy Z Fold6 for an unfolding workspace
The Fold6’s defining advantage is its 7.6-inch inner display, alongside a 6.3-inch cover display for using the phone while folded. The larger open screen can suit reading, working across apps, or viewing content on a tablet-like surface. It remains a phone-sized device when closed, but its book-style shape is a meaningful change from a standard slab.
Choose the Galaxy S25 Ultra for a conventional flagship
The S25 Ultra keeps the familiar one-piece phone design and offers a 6.9-inch-class display. Its S Pen is built in, so it is the simpler choice if you want a stylus always carried with the phone. Samsung also highlights its 200MP main camera, while the Fold6 uses a three-camera rear system with different resolutions.
#1 Best Overall
- A premium foldable smartphone featuring an 8.0" Dynamic AMOLED 2X main display, 6.5" cover display, 200MP main camera, Snapdragon 8 Elite for Galaxy processor, up to 16GB RAM and 1TB storage, 4,400mAh battery, and a slim 215g design.
Displays, stylus, cameras, and battery
Displays and stylus
Samsung describes both Fold6 displays as 120Hz. The S25 Ultra’s single 6.9-inch-class screen is large, but it does not open into a second display. The Fold6 supports the S Pen Fold Edition; do not assume the stylus is included, since bundle contents can vary by region and offer.
Camera hardware
The Fold6’s rear cameras are a 50MP wide, 12MP ultrawide, and 10MP telephoto. Samsung promotes a 200MP wide camera on the S25 Ultra. Those specifications describe hardware, not a head-to-head image-quality result: megapixel count alone cannot establish which phone takes better photos.
Battery and processor
Samsung lists 4,400mAh for the Fold6 and 5,000mAh for the S25 Ultra. Capacity is not the same as runtime, so those figures do not guarantee how long either phone will last between charges. The Fold6 uses Snapdragon 8 Gen 3, while the S25 Ultra uses Snapdragon 8 Elite for Galaxy. The cited manufacturer specifications do not provide controlled comparative benchmark results.
Rank #2
- SPLIT THE VIEW. MULTITASK¹ TO THE MAX: Productivity never felt this powerful. Use up to three apps¹ at once on the expansive inner screen of Galaxy Z Fold8 Ultra. You’ll enjoy plenty of space to work, play, connect and more.
- MULTITASKING MADE SMARTER WITH AI: Stay one step ahead with AI² that suggests which apps you might need next. Then view those multiple windows side by side on the large screen of your Galaxy Z Fold8 Ultra.
- ANY SHOT, ALL THE DETAILS: Dive into the details of any image with our best camera on a foldable smartphone. Galaxy Z Fold8 Ultra boasts a 200MP camera — and an upgraded 50MP Ultra Wide lens — for both stunning wide shots and extreme close-ups.
- ELITE CHIPSET. FLUID GRAPHICS: Experience what’s possible with our most advanced Galaxy Z Series processor. From immersive gaming and speedy multitasking to the latest Galaxy AI³ features, the Snapdragon 8 Elite Gen 5 keeps everything running seamlessly.
- THE BATTERY YOU’VE BEEN WAITING FOR: It’s the battery you’ve been wanting in a foldable cell phone. Galaxy Z Fold8 Ultra packs a powerful ultra-sized⁴ battery in an ultra-slim design. Plus, with Super Fast Charging 2.0⁵, charge up faster than ever before.
Price difference and availability
Samsung’s US MSRP price file effective March 2025 lists the unlocked 256GB Galaxy Z Fold6 at $1,899.99 and the 256GB Galaxy S25 Ultra at $1,299.99—a $600 difference at those listed prices. Samsung’s December 2025 US MSRP file marks Fold6 configurations EOL. These dated list-price records are not current transaction prices or confirmation of live stock in October 2026.
Actual offers can differ with promotions, trade-in credits, storage configuration, seller condition, and region. Check the seller’s current price and availability before buying. Samsung’s S25 Ultra product page has shown a starting price of $1,299.99 before trade-in, but product-page offers can change.
Durability note for the Fold6
The Fold6 has an IP48 rating. Samsung US Support explains that IP48 means the device resists solid particles larger than 1 mm and has been tested for submersion in up to 5 feet of fresh water for up to 30 minutes. That is Samsung’s stated test description, not a guarantee against every exposure or type of damage.
Quick Recap
Sources
- Samsung US Support: Differences between the Galaxy Z Fold6 and Z Flip6 (Fold6 specifications and IP48 explanation).
- Samsung US: Galaxy S25 Ultra product page (product features and price listing, which may change).
- Samsung US HHP MSRP price files effective March 2025 and December 2025 (historical US price listings and Fold6 EOL label; no URL was supplied for these files).
- Samsung US: Galaxy S25 Ultra comparison page (including built-in S Pen information).
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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