Why Fold 8 size is easy to misread
This year Samsung sells two book-style foldables with similar names. Fold 8 is shorter and wider—reviewers often nickname it the “wide” or “passport” Fold. Ultra stays tall and narrow, closer to Fold 7. It is not like S26 vs S26 Ultra, where Ultra is simply bigger.
Online debates are usually simpler: Will it stick out of a jeans pocket? Is the cover screen enough for a day? Will last year’s case still fit?
Size chart
Height × width × thickness from Samsung’s published specs. Screen size is the usual diagonal—cover screen when folded, main screen when open.
Z Fold8 (folded)
- Size (mm)
- 123.9 × 81.9 × 9.7 mm
- Size (in)
- 4.88 × 3.22 × 0.38 in
- Screen
- 5.5″
- Weight
- 201 g
Shorter “wide” closed phone
Z Fold8 (open)
- Size (mm)
- 123.9 × 161.4 × 4.5 mm
- Size (in)
- 4.88 × 6.35 × 0.18 in
- Screen
- 7.6″
- Weight
- 201 g
Wider open screen for video
Z Fold8 Ultra (folded)
- Size (mm)
- 158.4 × 72.8 × 8.9 mm
- Size (in)
- 6.24 × 2.87 × 0.35 in
- Screen
- 6.5″
- Weight
- 215 g
Tall book fold, like Fold 7
Z Fold8 Ultra (open)
- Size (mm)
- 158.4 × 143.2 × 4.1 mm
- Size (in)
- 6.24 × 5.64 × 0.16 in
- Screen
- 8″
- Weight
- 215 g
Largest main screen here
Z Fold7 (folded)
- Size (mm)
- 158.4 × 72.8 × 8.9 mm
- Size (in)
- 6.24 × 2.87 × 0.35 in
- Screen
- 6.5″
- Weight
- 215 g
Close to Ultra when closed
Z Fold7 (open)
- Size (mm)
- 158.4 × 143.2 × 4.2 mm
- Size (in)
- 6.24 × 5.64 × 0.17 in
- Screen
- 8″
- Weight
- 215 g
Almost the same as Ultra open
Z Flip8 (folded)
- Size (mm)
- 85.7 × 75.4 × 13.1 mm
- Size (in)
- 3.37 × 2.97 × 0.52 in
- Screen
- 4.1″
- Weight
- 180 g
Clamshell pocket cube
iPhone 17 Pro Max
- Size (mm)
- 163.4 × 78 × 8.75 mm
- Size (in)
- 6.43 × 3.07 × 0.34 in
- Screen
- 6.9″
- Weight
- 233 g
Large bar phone reference
Galaxy S26 Ultra
- Size (mm)
- 163.6 × 78.1 × 7.9 mm
- Size (in)
- 6.44 × 3.07 × 0.31 in
- Screen
- 6.9″
- Weight
- 214 g
Flagship slab for pocket feel
| Model | Size (mm) | Screen | Weight | Quick note |
|---|---|---|---|---|
| Z Fold8 (folded) | 123.9 × 81.9 × 9.7 mm4.88 × 3.22 × 0.38 in | 5.5″ | 201 g | Shorter “wide” closed phone |
| Z Fold8 (open) | 123.9 × 161.4 × 4.5 mm4.88 × 6.35 × 0.18 in | 7.6″ | 201 g | Wider open screen for video |
| Z Fold8 Ultra (folded) | 158.4 × 72.8 × 8.9 mm6.24 × 2.87 × 0.35 in | 6.5″ | 215 g | Tall book fold, like Fold 7 |
| Z Fold8 Ultra (open) | 158.4 × 143.2 × 4.1 mm6.24 × 5.64 × 0.16 in | 8″ | 215 g | Largest main screen here |
| Z Fold7 (folded) | 158.4 × 72.8 × 8.9 mm6.24 × 2.87 × 0.35 in | 6.5″ | 215 g | Close to Ultra when closed |
| Z Fold7 (open) | 158.4 × 143.2 × 4.2 mm6.24 × 5.64 × 0.17 in | 8″ | 215 g | Almost the same as Ultra open |
| Z Flip8 (folded) | 85.7 × 75.4 × 13.1 mm3.37 × 2.97 × 0.52 in | 4.1″ | 180 g | Clamshell pocket cube |
| iPhone 17 Pro Max | 163.4 × 78 × 8.75 mm6.43 × 3.07 × 0.34 in | 6.9″ | 233 g | Large bar phone reference |
| Galaxy S26 Ultra | 163.6 × 78.1 × 7.9 mm6.44 × 3.07 × 0.31 in | 6.9″ | 214 g | Flagship slab for pocket feel |
Based on Samsung’s published figures. Open thickness does not include the main-screen frame. For cases and protectors, check the accessory maker.
What people compare most
Here’s what stands out when the numbers sit next to each other:
- Fold 8 vs Ultra: Different shapes. Folded Fold 8 is 123.9 × 81.9 × 9.7 mm (201 g); Ultra is 158.4 × 72.8 × 8.9 mm (215 g). Cases are not shared.
- Fold 8 folded vs open: Height stays 123.9 mm. Width jumps from 81.9 to 161.4 mm; thickness drops from 9.7 to 4.5 mm.
- Ultra vs Fold 7: Almost the same footprint. Both 158.4 × 72.8 × 8.9 mm folded; open Ultra is 4.1 mm thin, Fold 7 is 4.2 mm. Weight stays 215 g.
- Cover screens (daily use): Ultra’s cover is about 6.5″ and taller—closer to a normal phone while closed. Fold 8’s cover is about 5.5″ but wider, matching its shorter body.
Which one fits your day—by size
Skip camera and price for a moment. If size and carry are what you’re stuck on:
- Lean Fold 8 if: You want a shorter closed phone that sits lower in front pockets, a lighter feel (201 g), and a wider open screen for video, reading, or two apps side by side.
- Lean Ultra if: You live on the cover screen, prefer a taller-narrower closed phone like Fold 7, want easier one-hand reach (72.8 mm wide), and a slightly thinner fold (8.9 mm).
Pockets, bags, and closed-phone feel
Typical front jeans pockets are roughly 150–165 mm tall. Fold 8 at 123.9 mm usually clears that with room to spare. Ultra at 158.4 mm sits near the top—some people notice a bit sticking out.
Width flips the trade-off: Fold 8 is wider closed (81.9 mm), so tight skinny pockets can feel snug. Ultra (72.8 mm) slides more like a regular flagship. Compare Ultra next to S26 Ultra above if you’re coming from a slab phone.
Other phones and sizes
Looking for another model, an iPhone size guide, or a phone next to paper? All phones · iPhone 17e size guide · Phone vs paper sizes