Home Phone comparison Xiaomi 15 Ultra and Honor 300 Ultra - Which is better?

Xiaomi 15 Ultra vs Honor 300 Ultra

95 out 100
Xiaomi 15 Ultra
VS
86 out 100
Honor 300 Ultra
Xiaomi 15 Ultra
Honor 300 Ultra

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Honor 300 Ultra, Manufactured in December, 2024with chipsetQualcomm Snapdragon 8 Gen 3. 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 Xiaomi 15 Ultra
  • Higher pixel density: 522ppi
  • Higher battery capacity: 5410mAh vs 5300mAh
  • Newer Bluetooth version: 6.0 vs 5.3
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM
Reasons to choose Honor 300 Ultra
  • Larger display: 6.78in
  • Lighter design: 198g vs 226g

Versions

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

Review

Key Specs Xiaomi 15 Ultra and Honor 300 Ultra
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.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 15 Ultra
vs
Honor 300 Ultra

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.78 in
Resolution 1440x3200 pixels 1224x2700 pixels
Aspect ratio 20:9 19.85:9
Pixel density 522 ppi 437 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max brightness n/a 1200 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 90 % 90.4 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 15 Ultra
1599 nits
Honor 300 Ultra
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 15 Ultra]

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 163.8 mm (6.45 in)
Width 75.3 mm (2.96 in) 75.3 mm (2.96 in)
Thickness 9.35 mm (0.37 in) 8.2 mm (0.32 in)
Weight 226 g (7.97 oz) 198 g (6.98 oz)
Water resistance IP68 IP65
Cooling system Vapor chamber Vapor chamber
Back panel Glass Eco Leather
Frame Metal Plastic
Colors - White
- Black
- Silver
- Green		 - White
- Black
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Honor 300 Ultra
90.4 %

Performance

Testing Xiaomi 15 Ultra and Honor 300 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Gen 3
Max Frequency 4320 MHz 3000 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 2 + 2)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 830 Adreno 750
GPU Cores 1536 1536
GPU Frequency 1100 MHz 903-1000 MHz
FLOPS 3379.2 GFLOPS 2774 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Honor 300 Ultra
2119
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Honor 300 Ultra
6702
Geekbench 6 (Single-Core)30082119
Geekbench 6 (Multi-Core)90656702
Sources: Geekbench v6 [Xiaomi 15 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Honor 300 Ultra
2119571
CPU558586500229
GPU1040161904902
Memory520300394809
UX425326319631
NanoReview Score25443732119571

Memory

RAM
RAM Size 12 GB - 12 GB
- 16 GB
Memory Type LPDDR5X LPDDR5
Memory Frequency 5333 MHz n/a
Channels 2 4
Storage
Storage Capacity256 GB- 512 GB
- 1024 GB
Storage TypeUFS 4.1n/a
Memory CardNoNo

Software

OS Android 15 Android 15
OS Size 23.9 GB n/a
UI Skin HyperOS 2.0 MagicOS 9

Battery

Volume 5410 mAh 5300 mAh
Max Charging Power 90 W 100 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (80 W) Yes (80 W)
Reverse Charging Yes (Wireless) Yes (Wireless)
Fast Charging Yes (72% in 30 min) Yes (59% in 15 min)
Full Charge Time 0:51 h 0:41 h
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Honor 300 Ultra
n/a
Web Browsing12:19 hn/a
Video Playback18:43 hn/a
Games06:45 hn/a
Standby Mode141 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 4.3x Optical, 3.8x
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 1920 fps (1080p) 240 fps (1080p)
Wide-angle lens 115 ° 112 °
Lenses count Standard: 50 MP
Telephoto: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.63f/2.0
Focal length23 mmn/a
SensorSony LYT-900Omnivision OVH9000
Sensor size1/1.01/1.56
Pixel size1.6 μm1 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix200 MP50 MP
Aperturef/2.6f/3.0
Focal length100 mmn/a
SensorSamsung ISOCELL S5KHP9n/a
Sensor size1/1.41/2.51
Pixel size0.56 μm0.7 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.2f/2.2
Focal length14 mmn/a
SensorSamsung S5KJN5n/a
Sensor size1/2.76n/a
Pixel size0.64 μmn/a
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15 Ultra
158
Honor 300 Ultra
n/a
Video quality
Xiaomi 15 Ultra
134
Honor 300 Ultra
n/a
Overall camera score
Xiaomi 15 Ultra
153
Honor 300 Ultra
n/a
Bokeh80n/a
Preview89n/a
Sources: DxOMark [Xiaomi 15 Ultra]

Front camera

Matrix 32 MP 50 MP
Photo resolution 6528x4896 pixels 8192x6144 pixels
Aperture f/2.0 f/2.1
Focal length 22 mm n/a
Sensor Omnivision OV32B n/a
Sensor size 1/3.14 n/a
Pixel size 0.7 μm n/a
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 30 fps
TOF 3D sensor No Yes

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)
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 5.3
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
- NAVIC		 - GPS
- GLONASS
- Galileo
- QZSS
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 BandsGSM 2/3/5/8n/a
3G BandsWCDMA 1/2/4/5/6/8/19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)n/a
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Xiaomi 15 Ultra
92.1 dB
Honor 300 Ultra
n/a

Other

Class Flagship Flagship
Announced February, 2025 yr December, 2024 yr
Release Date February, 2025 yr December, 2024 yr
Launch Price ($) n/a 580
MSRP ($) 1099 n/a
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 90 W Yes 100 W

Note

Xiaomi 15 Ultra:

The Chinese version of the Xiaomi 15 Ultra has a 6000 mAh battery, while the international model comes with 5410 mAh, leading to a noticeable difference in battery life.

Honor 300 Ultra:

The cover can be made of glass or eco-leather. The fingerprint scanner is ultrasonic.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

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