Head to head
Samsung Galaxy Z Fold 6 vs Samsung Galaxy S25 Ultra
Samsung Galaxy S25 Ultra leads 10 to 2 on the 12 rankable specs and costs $600 less, which makes it the straightforward pick.
Catalog as of September 1, 2026
Why, in numbers
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Compare a different phone
Google Pixel 8a$499OnePlus 12$799iPhone 16$799Google Pixel 9$799Samsung Galaxy S24$799Samsung Galaxy S25$799iPhone 17$799ASUS Zenfone 11 Ultra$899iPhone 16 Plus$899OnePlus 13$899iPhone 16 Pro$999Google Pixel 9 Pro$999Samsung Galaxy S24+$999Samsung Galaxy S25+$999iPhone 17 Pro$999iPhone Air$999Samsung Galaxy Z Flip 6$1,099Google Pixel 9 Pro XL$1,099iPhone 16 Pro Max$1,199iPhone 17 Pro Max$1,199Samsung Galaxy S24 Ultra$1,299Xiaomi 14 Ultra$1,399OnePlus Open$1,699Google Pixel 9 Pro Fold$1,799Generational Upgrade Analysis
Samsung sibling models compared across generations.
Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.
Buying for
Your devices
Straight answer
Overall: 2 to 10
Buy the Samsung Galaxy S25 Ultra.
- Leads 10 of 12 rankable overall specs; Samsung Galaxy Z Fold 6 takes 2.
- Weight: 219 g vs 239 g
- Max optical zoom: 5x optical zoom vs 3x optical
- It is also $600 cheaper.
Deal-breakers
tick what would make you walk away
- Trips:Samsung Galaxy Z Fold 6 · NoTrips:Samsung Galaxy S25 Ultra · No
- Trips:Samsung Galaxy Z Fold 6 · NoTrips:Samsung Galaxy S25 Ultra · No
- Trips:Samsung Galaxy Z Fold 6 · IP48 (water resistant to 1.5m + solid p…Clear:Samsung Galaxy S25 Ultra · IP68 (up to 1.5m for 30 mins)
- Trips:Samsung Galaxy Z Fold 6 · NoTrips:Samsung Galaxy S25 Ultra · No
At a glance
The handful of numbers that decide most purchases in this category.
Weight
Galaxy Z Fold 6
239 g
Galaxy S25 Ultra
219 g (7.72 oz)
Size
Galaxy Z Fold 6
7.6 inches inner / 6.3 inches cover
Galaxy S25 Ultra
6.9 inches
Chipset≠
Galaxy Z Fold 6
Snapdragon 8 Gen 3 for Galaxy (4 nm)
Galaxy S25 Ultra
Qualcomm Snapdragon 8 Elite for Galaxy (3 nm)
RAM≠
Galaxy Z Fold 6
12 GB LPDDR5X
Galaxy S25 Ultra
12 GB (16 GB option)
Max optical zoom
Galaxy Z Fold 6
3x optical (30x Space Zoom)
Galaxy S25 Ultra
5x optical zoom (10x optical quality, 100x Space Zoom)
Capacity
Galaxy Z Fold 6
4,400 mAh (dual-battery)
Galaxy S25 Ultra
5,000 mAh
The 90-Day Owner Regret Check
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Galaxy Z Fold 6: What to watch for
- Hidden Cost
No wall charging adapter included in the retail box.
Galaxy S25 Ultra: What to watch for
- Hidden Cost
No wall charging adapter included in the retail box.
Body
leads 1-0| Dimensions | Unfolded: 153.5 × 132.6 × 5.6 mm / Folded: 153.5 × 68.1 × 12.1 mm | 162.8 × 77.6 × 8.2 mm |
|---|---|---|
| Weight | 239 g | 219 g (7.72 oz) (wins this row: lower) |
| Build | Gorilla Glass Victus 2 cover/back, Enhanced Armor Aluminum frame | Titanium frame with Gorilla Armor 2 front and Gorilla Glass Victus 2 back |
| Water / dust rating | IP48 (water resistant to 1.5m + solid particles >1mm) | IP68 (up to 1.5m for 30 mins) |
| Colors | Silver Shadow, Pink, Navy, Crafted Black, White | Titanium Silverblue, Titanium Black, Titanium Gray, Titanium Whitesilver |
| Stylus | S Pen Fold Edition support (inner screen only, sold separately) | Yes (built-in S Pen with Bluetooth LE) |
Display
leads 2-1| Type | Dynamic LTPO AMOLED 2X foldable inner + AMOLED cover | Dynamic LTPO AMOLED 2X |
|---|---|---|
| Size | 7.6 inches inner / 6.3 inches cover (wins this row: higher) | 6.9 inches |
| Resolution | Inner: 2160 × 1856 / Cover: 968 × 2376 | 3120 × 1440 (QHD+) (wins this row: higher) |
| Pixel density | ~374 ppi inner / ~410 ppi cover | 505 ppi (wins this row: higher) |
| Refresh rate | 1–120 Hz LTPO (both screens) | 120 Hz (1–120Hz LTPO) |
| Peak brightness | 2,600 nits peak (both screens) | 2,600 nits peak |
| HDR | HDR10+ | HDR10+, HLG |
| Protection | Ultra Thin Glass (inner) / Gorilla Glass Victus 2 (cover) | Corning Gorilla Armor 2 (anti-reflective) |
| Always-on display | Yes | Yes |
Platform
5 differences| Operating system | Android 14 with One UI 6.1.1 | Android 15 (One UI 7) |
|---|---|---|
| Software support | 7 major OS versions + 7 years security | 7 generations of OS upgrades & 7 years security updates |
| Chipset | Snapdragon 8 Gen 3 for Galaxy (4 nm) | Qualcomm Snapdragon 8 Elite for Galaxy (3 nm) |
| CPU | 8-core (1× Cortex-X4 + 5× A720 + 2× A520) | 8-core Oryon CPU (2× 4.47 GHz Prime + 6× 3.53 GHz Performance) |
| GPU | Adreno 750 | Adreno 830 |
Memory
leads 1-0| RAM | 12 GB LPDDR5X | 12 GB (16 GB option) |
|---|---|---|
| Storage | 512 GB UFS 4.0 (wins this row: higher) | 256 GB |
| Storage options | 256 GB / 512 GB / 1 TB | 256 GB, 512 GB, 1 TB (UFS 4.0) |
| microSD | No | No |
Rear camera
leads 4-0| Main | 50 MP, f/1.8, 23 mm, 1.0µm, Dual Pixel PDAF, OIS | 200 MP (f/1.7, 24mm, 1/1.3", multi-directional PDAF, Laser AF, OIS) (wins this row: higher) |
|---|---|---|
| Ultrawide | 12 MP, f/2.2, 12 mm, 123° | 50 MP (f/1.9, 120° FOV, Dual Pixel PDAF, macro) (wins this row: higher) |
| Telephoto | 10 MP, f/2.4, 66 mm, 3x optical, PDAF, OIS | 50 MP 5x periscope (f/3.4, 115mm, Dual Pixel PDAF, OIS) + 50 MP 3x (f/2.4, 67mm, Dual Pixel PDAF, OIS) (wins this row: higher) |
| Max optical zoom | 3x optical (30x Space Zoom) | 5x optical zoom (10x optical quality, 100x Space Zoom) (wins this row: higher) |
| Stabilization | OIS on main and 3x telephoto | OIS on main and both telephoto cameras |
| Video | 8K 30 fps, 4K 60 fps, 1080p 240 fps | 8K at 30 fps, 4K at 30/60/120 fps, HDR10+, 10-bit LOG video |
Front camera
leads 1-0| Selfie camera | 10 MP cover selfie + 4 MP under-display inner camera | 12 MP (f/2.2, 26mm, Dual Pixel PDAF) (wins this row: higher) |
|---|---|---|
| Selfie video | 4K 60 fps (cover camera) | 4K at 30/60 fps |
Battery & charging
leads 2-0| Capacity | 4,400 mAh (dual-battery) | 5,000 mAh (wins this row: higher) |
|---|---|---|
| Wired chargingNot on the official sheet | 25 W fast wired (50% in 30 min) | 45W fast wired charging (up to 65% in 30 min) (wins this row: higher) |
| Wireless charging | 15 W Fast Wireless | 15W Fast Wireless Charging 2.0 |
| Reverse wireless | 4.5 W Wireless PowerShare | 4.5W Wireless PowerShare |
| Charger in box | No | No |
Audio
0 differences| Speakers | Stereo speakers tuned by AKG | Stereo speakers tuned by AKG |
|---|---|---|
| Headphone jack | No | No |
Connectivity
6 differences| Cellular | 5G (sub-6 + mmWave) | 5G (sub-6 GHz and mmWave) |
|---|---|---|
| Wi-Fi | Wi-Fi 6E / Wi-Fi 7 ready | Wi-Fi 7 (802.11be tri-band) |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.4 |
| NFC | Yes (Samsung Pay / Google Wallet) | Yes (Samsung Pay / Google Pay) |
| USB | USB-C 3.2 Gen 1 (DisplayPort support) | USB-C 3.2 Gen 1 (DisplayPort video out) |
| SIM | Dual nano-SIM + eSIM | Dual eSIM / Nano-SIM + eSIM |
Features
3 differences| Biometrics | Capacitive side-mounted fingerprint + Face unlock | Ultrasonic in-display fingerprint sensor + 2D Face unlock |
|---|---|---|
| Extra controls | Side key with integrated fingerprint reader | S Pen air gestures |
| Standout features | Dual-screen form factor, Flex Mode, App Continuity, Samsung DeX, Galaxy AI | Built-in S Pen, Galaxy AI 2.0 (Now Brief, Live Translate, Sketch to Image), Anti-reflective Gorilla Armor 2, Samsung DeX |
Which one should you buy
Pick this one if
Samsung Galaxy Z Fold 6
Slimmer, lighter foldable flagship with 7.6-inch inner screen, Snapdragon 8 Gen 3, and IP48 water resistance.
- Expansive 7.6-inch inner AMOLED display for unmatched multitasking
- Refined lighter hinge and squared-off industrial design
- 7 years of OS upgrades with integrated Galaxy AI tools
What you give up
- Very high premium price tag
- Cameras unchanged from Fold 5 generation
Pick this one if
Samsung Galaxy S25 Ultra
Flagship titanium smartphone with Snapdragon 8 Elite for Galaxy, built-in S Pen, 200MP quad camera with 50MP ultrawide and 50MP 5x telephoto, and Galaxy AI.
- Top-tier Snapdragon 8 Elite 3nm custom Galaxy performance
- Upgraded 50MP ultra-wide and dual 50MP telephoto sensors with 200MP main
- Corning Gorilla Armor 2 anti-reflective display and built-in S Pen stylus
What you give up
- Premium $1,299 starting price
- Wired charging remains at 45W
Best for each use
Photos
For photos, buy the Samsung Galaxy S25 Ultra.
Battery & updates
For battery & updates, buy the Samsung Galaxy S25 Ultra.
Games & video
Too close to call on games & video from the spec sheets. Only size is rankable here.
Done deciding?
Open the full standalone spec sheet for either device.
Manufacturer pages: Samsung Galaxy Z Fold 6 ↗ · Samsung Galaxy S25 Ultra ↗
Common questions
Which is cheaper, the Samsung Galaxy Z Fold 6 or the Samsung Galaxy S25 Ultra?
Samsung Galaxy S25 Ultra costs $600 less at list price.
What is the biggest catch with the Samsung Galaxy Z Fold 6 or Samsung Galaxy S25 Ultra?
Both has this deal-breaker: no headphone jack. Wired headphones need a USB-C dongle.
Which is better for photos, the Samsung Galaxy Z Fold 6 or the Samsung Galaxy S25 Ultra?
For photos, buy the Samsung Galaxy S25 Ultra. Leads 5 of 5 rankable photos specs. Max optical zoom: 5x optical zoom vs 3x optical
What cannot be compared from spec sheets?
Of the 48 specs tracked here, 36 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.