Home Phone comparison Vivo iQOO 15 Ultra and Xiaomi 18 Fold - Which is better?

Vivo iQOO 15 Ultra vs Xiaomi 18 Fold

94 out 100
Vivo iQOO 15 Ultra
VS
89 out 100
Xiaomi 18 Fold
Vivo iQOO 15 Ultra
Xiaomi 18 Fold

Compared 2 smartphones : Vivo iQOO 15 Ultra Manufactured in February, 2026, with display 6.85 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 Vivo iQOO 15 Ultra
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7400mAh vs 6000mAh
  • Built-in eSIM
Reasons to choose Xiaomi 18 Fold
  • Larger display: 7.58in
  • Lighter design: 219g vs 227g
  • Newer Bluetooth version: 6.0 vs 5.4

Versions

Available versions and configurations
Memory Options - 16/256 GB
- 16/512 GB
- 16/1024 GB
- 24/1024 GB		 - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Vivo iQOO 15 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
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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:
Vivo iQOO 15 Ultra
vs
Xiaomi 18 Fold

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.85 in 7.58 in
Resolution 1440x3168 pixels 2364x1672 pixels
Aspect ratio 20:9 3:2
Pixel density 508 ppi 382 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max brightness 2600 nits n/a
HDR support Yes, HDR10+ Yes, Dolby Vision
Screen-to-body ratio 90.1 % 88.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 163.7 mm (6.44 in) 163.8 mm (6.45 in)
Width 76.8 mm (3.02 in) 117.8 mm (4.64 in)
Thickness 8.7 mm (0.34 in) 5.02 mm (0.2 in)
Weight 227 g (8.01 oz) 219 g (7.72 oz)
Water resistance IP69 IP59
Cooling system Active fan Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - Black
- Silver		 - Silver
- Gray
- Red
- Rose Gold
Fingerprint sensor Yes, In-Display Yes, In-Button
Screen-to-body ratio
Vivo iQOO 15 Ultra
90.1 %
Xiaomi 18 Fold
88.7 %

Performance

Testing Vivo iQOO 15 Ultra and Xiaomi 18 Fold In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Gen 5 XRing O3
Max Frequency 4600 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
Graphics Adreno 840 n/a
GPU Cores 1536 n/a
GPU Frequency 1200 MHz n/a
FLOPS 3686.4 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO 15 Ultra
3615
Xiaomi 18 Fold
3636
Geekbench 6 (Multi-Core)
Vivo iQOO 15 Ultra
11366
Xiaomi 18 Fold
13491
Geekbench 6 (Single-Core)36153636
Geekbench 6 (Multi-Core)1136613491
Sources: Geekbench v6 [Vivo iQOO 15 Ultra], [Xiaomi 18 Fold]
AnTuTu 10
AnTuTu 10
Vivo iQOO 15 Ultra
4518403
Xiaomi 18 Fold
5228014
CPU13220011359147
GPU15948482143582
Memory593523941063
UX1008031784222
NanoReview Score45184035228014

Memory

RAM
RAM Size 16 GB 12 GB
Memory Type LPDDR5X LPDDR5X
Channels 4 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 4.1UFS 4.1
Memory CardNoNo

Software

OS Android 16 Android 17
UI Skin OriginOS 6 HyperOS 4

Battery

Volume 7400 mAh 6000 mAh
Max Charging Power 100 W 67 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (40 W) Yes (50 W)
Reverse Charging Yes, (Wireless) Yes, (Wireless)
Fast Charging Yes Yes

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 3x Optical, 3.5x
Flash Dual LED n/a
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) n/a
4K Recording Yes (Up to 60 fps) n/a
1080p Recording Yes (Up to 60 fps) n/a
Slow Motion 240 fps (1080p) n/a
Wide-angle lens 107 ° n/a
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.9f/1.7
Focal length23 mm23 mm
SensorSony IMX921Samsung ISOCELL HP5
Sensor size1/1.56 (0.64)1/1.56 (0.64)
Pixel size1 μm0.5 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MP50 MP
Aperturef/2.7f/2.8
Focal lengthn/a80 mm
SensorSony IMX882Samsung S5KJN5
Sensor size1/1.95 (0.51)1/2.76 (0.36)
Pixel size0.8 μm0.64 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP50 MP
Aperturef/2.1f/2.4
Focal length15 mmn/a
Sensorn/aOmnivision OV50M
Sensor size1/2.76 (0.36)1/2.76 (0.36)
Pixel size0.64 μm0.61 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 16 MP
Aperture f/2.2 f/2.2
Focal length 21 mm 21 mm
Sensor CMOS n/a
Sensor size 1/3.1 (0.32) n/a
Pixel size 0.7 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 5.4 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 Yes Yes
Connectivity
SIM Count*22
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 February, 2026 yr September, 2026 yr
Release Date February, 2026 yr September, 2026 yr
MSRP ($) 820 1640
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 100 W Yes, 67 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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