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- Galaxy Z Fold8 Ultra vs 18 Fold
Samsung Galaxy Z Fold8 Ultra vs Xiaomi 18 Fold
What Galaxy Z Fold8 Ultra does better (8) and where 18 Fold wins (8) — every spec side by side.
vs
8.7Display7.7
9.1Performance9.8
9.5Camera9.2
7.8Battery9.4
9.3Features7.1
Dimensions
Size comparison
Galaxy Z Fold8 Ultra18 Fold
| Galaxy Z Fold8 Ultra | 18 Fold | Difference | |
|---|---|---|---|
| Height | 158.4 mm | 163.8 mm | −5.4 mm |
| Width | 143.2 mm | 117.8 mm | +25.4 mm |
| Thickness | 4.1 mm | 5 mm | −0.9 mm |
| Weight | 215 g | 219 g | −4 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy Z Fold8 Ultra better than 18 Fold?
- 4K video frame rate120 fps vs 60 fps2×
- 4K selfie videoYes · 18 Fold: No
- eSIMYes · 18 Fold: No
- Pixel density422 ppi vs 382 ppi+10%
- CPU frequency4.74 GHz vs 4.35 GHz+9%
- Screen size8″ vs 7.6″+6%
- Resolution (width)2,256 px vs 1,672 px+35%
- Thickness4.1 mm vs 5 mm+22%
Why is 18 Fold better than Galaxy Z Fold8 Ultra?
- AnTuTu score2,160,310 vs 5,228,0142.4×
- Wired charging45 W vs 67 W+49%
- Battery capacity5,000 mAh vs 6,000 mAh+20%
- Geekbench 6 (multi-core)11,124 vs 13,491+21%
- Wireless charging power20 W vs 50 W2.5×
- Peak brightness3,000 nits vs 4,000 nits+33%
- Selfie camera10 MP vs 16 MP+60%
- CPU cores8 vs 10+25%
Specifications
Side by side
| Design | ||
| Weight | 215 g | 219 g |
| Thickness | 4.1 mm | 5 mm |
| Height | 158.4 mm | 163.8 mm |
| Width | 143.2 mm | 117.8 mm |
| Frame | Aluminium | Aluminium |
| Back | Glass | Glass |
| Ingress protection | IP48 | IP58 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Glass protection | Gorilla Glass Victus 2 | Xiaomi Dragon Crystal Glass 3 |
| Colours | Graphite, Cream, Violet Shadow | Gray, Silver, Red, Rose gold |
| Stylus | Yes | — |
| Display | ||
| Screen size | 8″ | 7.6″ |
| Panel | Foldable Dynamic LTPO AMOLED 2X | LTPO AMOLED |
| OLED panel | Yes | Yes |
| LTPO (adaptive 1–120 Hz) | Yes | Yes |
| Resolution (width) | 2,256 px | 1,672 px |
| Resolution (height) | 2,504 px | 2,364 px |
| Pixel density | 422 ppi | 382 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,000 nits | 4,000 nits |
| Measured brightness | 1,432 nits | — |
| Screen-to-body ratio | 90.1% | 90.6% |
| HDR | Yes | Yes |
| Foldable | Yes | Yes |
| Performance | ||
| Chipset | Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 | XRing O3 |
| Chip maker | Qualcomm | Xring |
| Process | 3 nm | 3 nm |
| CPU cores | 8 | 10 |
| CPU frequency | 4.74 GHz | 4.35 GHz |
| GPU | Adreno 840 | Arm G2-Ultra NX MC16 |
| AnTuTu score | 2,160,310 | 5,228,014 |
| Geekbench 6 (multi-core) | 11,124 | 13,491 |
| 3DMark Wild Life Extreme | 6,772 | — |
| Memory | ||
| RAM | 16 GB | 16 GB |
| Storage (max) | 1,024 GB | 1,024 GB |
| Storage (base) | 256 GB | 256 GB |
| Storage type | UFS 4. | UFS 4.1 |
| Memory card slot | No | No |
| Camera | ||
| Main camera | 200 MP | 200 MP |
| Main camera aperture | f/1.7 | f/1.7 |
| Main sensor size | 1/1.3" | 1/1.56" |
| Rear cameras | 3 | 3 |
| Optical stabilisation | Yes | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | Yes | Yes |
| Optical zoom | 3× | 3× |
| Max video | 8K | 8K |
| 4K video frame rate | 120 fps | 60 fps |
| Selfie camera | 10 MP | 16 MP |
| 4K selfie video | Yes | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 6,000 mAh |
| Battery type | Si/C | Si/C |
| Active use (test) | 13.1 h | — |
| Wired charging | 45 W | 67 W |
| Charged in 30 min | 67% | — |
| Wireless charging | Yes | Yes |
| Wireless charging power | 20 W | 50 W |
| Reverse wireless charging | Yes | Yes |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | Yes | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 6 | 6 |
| NFC | Yes | Yes |
| USB | USB Type-C 3.2 | USB Type-C 3.2 Gen2 |
| USB version | 3.2 | 3.2 |
| Video output | Yes | Yes |
| Ultra Wideband | Yes | Yes |
| Infrared port | — | Yes |
| Dual-band GPS | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS, NavIC |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Loudspeaker loudness | -29.3 LUFS | — |
| Fingerprint sensor | Side | Side |
| Barometer | Yes | Yes |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer |
| SAR (head) | 0.82 W/kg | — |
| Software | ||
| OS at launch | Android 17 | Android 17 |
| Platform | Android | Android |
| Interface | One UI 9 | HyperOS 4 |
| Major OS updates promised | 7 | — |
| EU label | ||
| Energy class | A | — |
| Battery charge cycles | 1,200 | — |
| Endurance per cycle | 51 h | — |
| Repairability class | C | — |
| Drop resistance class | A | — |
