Home Phone comparison Samsung Galaxy Z Fold 8 Ultra and Xiaomi 18 Fold - Which is better?

Samsung Galaxy Z Fold 8 Ultra vs Xiaomi 18 Fold

87 out 100
Samsung Galaxy Z Fold 8 Ultra
VS
89 out 100
Xiaomi 18 Fold
Samsung Galaxy Z Fold 8 Ultra
Xiaomi 18 Fold

Compared 2 smartphones : Samsung Galaxy Z Fold 8 Ultra Manufactured in July, 2026, with display 8 with chipsetQualcomm Snapdragon 8 Elite Gen 5, vs Xiaomi 18 Fold, Manufactured in September, 2026 with chipsetXRing O3. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy Z Fold 8 Ultra
  • Larger display: 8in
  • Higher pixel density: 422ppi
  • Lighter design: 215g vs 219g
  • Built-in eSIM
Reasons to choose Xiaomi 18 Fold
  • Higher battery capacity: 6000mAh vs 5000mAh
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB		 - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Samsung Galaxy Z Fold 8 Ultra and Xiaomi 18 Fold
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Galaxy Z Fold 8 Ultra
vs
Xiaomi 18 Fold

Display

Display quality comparison
Type Dynamic AMOLED AMOLED
Size 8 in 7.58 in
Resolution 2256x2504 pixels 2364x1672 pixels
Aspect ratio n/a 3:2
Pixel density 422 ppi 382 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
HDR support Yes, HDR10+ Yes, Dolby Vision
Screen-to-body ratio 90.1 % 88.7 %
Features - DCI-P3
- Always-On Display		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy Z Fold 8 Ultra
2987 nits
Xiaomi 18 Fold
n/a

Design & Build

Design and ergonomics comparison
Height 143.2 mm (5.64 in) 163.8 mm (6.45 in)
Width 158.4 mm (6.24 in) 117.8 mm (4.64 in)
Thickness 4.1 mm (0.16 in) 5.02 mm (0.2 in)
Weight 215 g (7.58 oz) 219 g (7.72 oz)
Water resistance IP48 IP59
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Gray
- Purple		 - Silver
- Gray
- Red
- Rose Gold
Fingerprint sensor Yes, In-Button Yes, In-Button
Screen-to-body ratio
Samsung Galaxy Z Fold 8 Ultra
90.1 %
Xiaomi 18 Fold
88.7 %

Performance

Testing Samsung Galaxy Z Fold 8 Ultra and Xiaomi 18 Fold In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Gen 5 XRing O3
Max Frequency 4740 MHz 4350 MHz
CPU Cores 8 (2 + 6) 10 (2 + 4 + 4)
Architecture - 6/3.63 (Oryon Gen 3 Performance)
- 2/4.61 (Oryon Gen 3 Prime)		 - 4/3.15 (C1-Pro)
- 4/3.68 (C1-Premium)
- 2/4.35 (C1-Ultra)
Process TSMC TSMC
Transistor Size 3 nm 3 nm
Neural Processor Hexagon Yes
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy Z Fold 8 Ultra
3681
Xiaomi 18 Fold
3636
Geekbench 6 (Multi-Core)
Samsung Galaxy Z Fold 8 Ultra
10934
Xiaomi 18 Fold
13491
Geekbench 6 (Single-Core)36813636
Geekbench 6 (Multi-Core)1093413491
Sources: Geekbench v6 [Samsung Galaxy Z Fold 8 Ultra], [Xiaomi 18 Fold]
AnTuTu 10
AnTuTu 10
Samsung Galaxy Z Fold 8 Ultra
3453998
Xiaomi 18 Fold
5228014
CPU10703661359147
GPU12858802143582
Memory407835941063
UX689917784222
NanoReview Score34539985228014

Memory

RAM
RAM Size 12 GB 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5300 MHz n/a
Channels 4 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 17 Android 17
UI Skin One UI 9 HyperOS 4

Battery

Volume 5000 mAh 6000 mAh
Max Charging Power 45 W 67 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (20 W) Yes (50 W)
Reverse Charging Yes, (Wireless) Yes, (Wireless)
Fast Charging Yes (71% in 30 min) Yes
Full Charge Time 1:00 h n/a
Battery Life Test
Battery Life
Samsung Galaxy Z Fold 8 Ultra
25:38
Xiaomi 18 Fold
n/a
Web Browsing08:24 hn/a
Video Playback18:11 hn/a
Games05:07 hn/a
Standby Mode128 hn/a

Main camera

Matrix 200 MP 200 MP
Photo resolution 16320x12240 pixels n/a
Zoom Optical, 3x Optical, 3.5x
Flash LED n/a
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) n/a
4K Recording Yes (Up to 120 fps) n/a
1080p Recording Yes (Up to 240 fps) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 200 MP
Telephoto: 10 MP
Ultra-wide: 50 MP		 Standard: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix200 MP200 MP
Aperturef/1.7f/1.7
Focal length24 mm23 mm
SensorSamsung ISOCELL HP2Samsung ISOCELL HP5
Sensor size1/1.3 (0.77)1/1.56 (0.64)
Pixel size0.6 μm0.5 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrix10 MP50 MP
Aperturef/2.4f/2.8
Focal length67 mm80 mm
SensorSamsung S5K3K1Samsung S5KJN5
Sensor size1/3.94 (0.25)1/2.76 (0.36)
Pixel size1 μm0.64 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP50 MP
Aperturef/1.9f/2.4
Sensorn/aOmnivision OV50M
Sensor size1/2.5 (0.4)1/2.76 (0.36)
Pixel size0.7 μm0.61 μm
StabilizationDigitalDigital

Front camera

Matrix 10 MP 16 MP
Photo resolution 3648x2736 pixels n/a
Aperture f/2.2 f/2.2
Focal length 24 mm 21 mm
Sensor Sony IMX374 n/a
Sensor size 1/3.0 (0.33) n/a
Pixel size 1.12 μm n/a
Autofocus No n/a
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps n/a
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 6.0 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G Bandsn/aGSM B2 / B3 / B5 / B8
3G Bandsn/aWCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
LTE Bands*n/aLTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)
5G SupportYesYes

Sound

3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes

Other

Class Flagship Flagship
Announced July, 2026 yr September, 2026 yr
Release Date July, 2026 yr September, 2026 yr
MSRP ($) n/a 1640
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes, 67 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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