Home Phone comparison Vivo X100 Ultra and Xiaomi 15T - Which is better?

Vivo X100 Ultra vs Xiaomi 15T

88 out 100
Vivo X100 Ultra
VS
82 out 100
Xiaomi 15T
Vivo X100 Ultra
Xiaomi 15T

Compared 2 smartphones : Vivo X100 Ultra Manufactured in May, 2024, with display 6.78 with chipsetQualcomm Snapdragon 8 Gen 3, vs Xiaomi 15T, Manufactured in September, 2025 with chipsetMediaTek Dimensity 8400 Ultra. 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 X100 Ultra
  • Higher pixel density: 517ppi
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Includes charger
Reasons to choose Xiaomi 15T
  • Larger display: 6.83in
  • Lighter design: 194g vs 229g
  • Newer Bluetooth version: 6.0 vs 5.4
  • Built-in eSIM

Versions

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

Review

Key Specs Vivo X100 Ultra and Xiaomi 15T
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:
Vivo X100 Ultra
vs
Xiaomi 15T

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.83 in
Resolution 1440x3200 pixels 1280x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 517 ppi 447 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max brightness 3000 nits n/a
HDR support Yes Dolby Vision Yes, Dolby Vision
Touch Sampling Rate 300 Hz 480 Hz
Screen-to-body ratio 89.5 % 89.9 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Vivo X100 Ultra
1783 nits
Xiaomi 15T
n/a

Design & Build

Design and ergonomics comparison
Height 164.1 mm (6.46 in) 163.2 mm (6.43 in)
Width 75.6 mm (2.98 in) 78 mm (3.07 in)
Thickness 9.2 mm (0.36 in) 7.5 mm (0.3 in)
Weight 229 g (8.08 oz) 194 g (6.84 oz)
Water resistance IP69 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass n/a
Frame Metal Plastic
Colors - White
- Gray		 - Black
- Gray
- Rose Gold
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Vivo X100 Ultra
89.5 %
Xiaomi 15T
89.9 %

Performance

Testing Vivo X100 Ultra and Xiaomi 15T In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 MediaTek Dimensity 8400 Ultra
Max Frequency 3300 MHz 3250 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (1 + 3 + 4)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 4/2.1 (Cortex-A725)
- 3/3 (Cortex-A725)
- 1/3.25 (Cortex-A725)
Process TSMC TSMC
Transistor Size 4 nm 4 nm
Neural Processor Hexagon MediaTek NPU 880
Graphics Adreno 750 Mali-G720 MP7
GPU Cores 1536 896
GPU Frequency 903-1000 MHz 1300 MHz
FLOPS 2774 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo X100 Ultra
2292
Xiaomi 15T
1603
Geekbench 6 (Multi-Core)
Vivo X100 Ultra
7005
Xiaomi 15T
6413
Geekbench 6 (Single-Core)22921603
Geekbench 6 (Multi-Core)70056413
Geekbench Compute (GPU)n/a11228
Sources: Geekbench v6 [Vivo X100 Ultra], [Xiaomi 15T]
AnTuTu 10
AnTuTu 10
Vivo X100 Ultra
1985404
Xiaomi 15T
1872827
CPU454762448609
GPU786308683486
Memory395610396486
UX348724344246
NanoReview Score19854041872827
3DMark Wild Life
3DMark Wild Life
Vivo X100 Ultra
16644
Xiaomi 15T
n/a
Sources: 3DMark [Vivo X100 Ultra]
PCMark 3.0
PCMark 3.0
Vivo X100 Ultra
14201
Xiaomi 15T
n/a
Writing score18970n/a
Web score10974n/a
Video editing6450n/a
Data manipulation12481n/a
NanoReview Score14201n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz n/a
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 15
UI Skin OriginOS 5 HyperOS 2.0

Battery

Volume 5500 mAh 5500 mAh
Max Charging Power 80 W 67 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (30 W) No
Reverse Charging Yes No
Fast Charging Yes (65% in 30 min) Yes (50% in 22 min)
Full Charge Time 0:48 h 0:50 h
Battery Life Test
Battery Life
Vivo X100 Ultra
22:58
Xiaomi 15T
n/a
Web Browsing10:19 hn/a
Video Playback14:26 hn/a
Games05:35 hn/a
Standby Mode99 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 3.7x Optical, 2x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (1080p) 240 fps (1080p)
Wide-angle lens 116 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 200 MP
Ultra-wide: 50 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features Bokeh effect - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.7
Focal length23 mm23 mm
SensorSony LYT-900Omnivision OV50 Light Hunter 800
Sensor size1/0.981/1.55
Pixel size1.6 μm1 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix200 MP50 MP
Aperturef/2.7f/1.9
Focal length85 mm46 mm
SensorSamsung ISOCELL HP9Samsung S5KJN5
Sensor size1/1.41/2.76
Pixel size0.56 μm0.64 μm
StabilizationOpticalDigital
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.2f/2.2
Focal length14 mm15 mm
SensorSony LYT-600n/a
Sensor size1/2.01/3.06
Pixel size0.7 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 50 MP 32 MP
Photo resolution 8192x6144 pixels n/a
Aperture f/2.5 f/2.2
Focal length 24 mm 21 mm
Sensor n/a CMOS
Sensor size 1/2.76 1/3.44
Pixel size n/a 0.64 μm
Autofocus n/a No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
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 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G Bandsn/aGSM 2/3/5/8
3G Bandsn/aWCDMA B1/2/4/5/8/6/19
LTE Bands*n/aLTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes

Other

Class Flagship Mid-range
Announced May, 2024 yr September, 2025 yr
Release Date May, 2024 yr September, 2025 yr
Launch Price ($) 900 n/a
MSRP ($) n/a 650
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 80 W No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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