Home Phone comparison Xiaomi 15 Ultra and Sony Xperia 1 III - Which is better?

Xiaomi 15 Ultra vs Sony Xperia 1 III

95 out 100
Xiaomi 15 Ultra
VS
61 out 100
Sony Xperia 1 III
Xiaomi 15 Ultra
Sony Xperia 1 III

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Sony Xperia 1 III, Manufactured in June, 2021 with chipsetQualcomm Snapdragon 888. 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
  • Larger display: 6.73in
  • Higher battery capacity: 5410mAh vs 4500mAh
  • Newer Bluetooth version: 6.0 vs 5.2
  • Supports newer USB: 3.2 vs 3.1
  • Supports DisplayPort
  • Infrared port
  • Built-in eSIM
Reasons to choose Sony Xperia 1 III
  • Higher pixel density: 643ppi
  • Lighter design: 186g vs 226g

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 Xiaomi 15 Ultra and Sony Xperia 1 III
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
Sony Xperia 1 III

Display

Display quality comparison
Type AMOLED OLED
Size 6.73 in 6.5 in
Resolution 1440x3200 pixels 1644x3840 pixels
Aspect ratio 20:9 21:9
Pixel density 522 ppi 643 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max brightness n/a 385 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz 120 Hz
Screen-to-body ratio 90 % 84.2 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3
Display test
Peak brightness (auto)
Xiaomi 15 Ultra
1599 nits
Sony Xperia 1 III
559 nits
sRGB gamut99.7 %99.9 %
PWM (Flicker)120 Hz476 Hz
Response time1 ms7.5 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Xiaomi 15 Ultra], [Sony Xperia 1 III]

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 165 mm (6.5 in)
Width 75.3 mm (2.96 in) 71 mm (2.8 in)
Thickness 9.35 mm (0.37 in) 8.2 mm (0.32 in)
Weight 226 g (7.97 oz) 186 g (6.56 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber n/a
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Silver
- Green		 - Black
- Gray
- Purple
Fingerprint sensor Yes In-Display Yes In-Button
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Sony Xperia 1 III
84.2 %

Performance

Testing Xiaomi 15 Ultra and Sony Xperia 1 III In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 888
Max Frequency 4320 MHz 2840 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 4/1.8 (Kryo 680 Silver (Cortex-A55))
- 3/2.42 (Kryo 680 Gold (Cortex-A78))
- 1/2.84 (Kryo 680 Prime (Cortex-X1))
Process TSMC Samsung
Transistor Size 3 nm 5 nm
Neural Processor Hexagon Hexagon 780
Graphics Adreno 830 Adreno 660
GPU Cores 1536 1024
GPU Frequency 1100 MHz 840 MHz
FLOPS 3379.2 GFLOPS 1290.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Sony Xperia 1 III
1466
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Sony Xperia 1 III
3923
Geekbench 6 (Single-Core)30081466
Geekbench 6 (Multi-Core)90653923
Sources: Geekbench v6 [Xiaomi 15 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Sony Xperia 1 III
933258
CPU558586265786
GPU1040161293033
Memory520300188494
UX425326185945
NanoReview Score2544373933258
3DMark Wild Life
3DMark Wild Life
Xiaomi 15 Ultra
n/a
Sony Xperia 1 III
5557
Max Surface Temp.n/a44.9 °C
Stabilityn/a71 %
Graphics Testn/a33 fps
Graphics Scoren/a5557
Sources: 3DMark [Sony Xperia 1 III]
PCMark 3.0
PCMark 3.0
Xiaomi 15 Ultra
n/a
Sony Xperia 1 III
14480
Writing scoren/a17808
Web scoren/a11594
Video editingn/a7774
Data manipulationn/a11748
NanoReview Scoren/a14480

Memory

RAM
RAM Size 12 GB 12 GB
Memory Type LPDDR5X LPDDR5
Memory Frequency 5333 MHz 2750 MHz
Channels 2 2
Storage
Storage Capacity256 GB- 256 GB
- 512 GB
Storage TypeUFS 4.1UFS 3.1
Memory CardNoMicroSD

Software

OS Android 15 Android 11 (Upgradeable to Android 13)
OS Size 23.9 GB 16 GB
UI Skin HyperOS 2.0 n/a

Battery

Volume 5410 mAh 4500 mAh
Max Charging Power 90 W 30 W
Battery Type Silicon Carbon (Si/C) Li-ion
Removable No No
Wireless Charging Yes (80 W) Yes
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (72% in 30 min) Yes (50% in 30 min)
Full Charge Time 0:51 h 1:50 h
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Sony Xperia 1 III
15:23
Web Browsing12:19 h05:20 h
Video Playback18:43 h08:56 h
Games06:45 h04:04 h
Standby Mode141 h82 h

Main camera

Matrix 50 MP 12 MP
Photo resolution 8192x6144 pixels 4000x3000 pixels
Zoom Optical, 4.3x Optical, 4.4x
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 120 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 ° 124 °
Lenses count Standard: 50 MP
Telephoto: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 Standard: 12 MP
Telephoto: 12 MP
Ultra-wide: 12 MP
Depth: 0.3 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP12 MP
Aperturef/1.63f/1.7
Focal length23 mm24 mm
SensorSony LYT-900Sony IMX557
Sensor size1/1.01/1.7
Pixel size1.6 μm1.8 μm
AutofocusLaser autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix200 MP12 MP
Aperturef/2.6f/2.3
Focal length100 mm70 mm
SensorSamsung ISOCELL S5KHP9Sony IMX663
Sensor size1/1.41/2.9
Pixel size0.56 μm1 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.2f/2.2
Focal length14 mm16 mm
SensorSamsung S5KJN5Sony IMX363
Sensor size1/2.761/2.55
Pixel size0.64 μm1.4 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15 Ultra
158
Sony Xperia 1 III
107
Video quality
Xiaomi 15 Ultra
134
Sony Xperia 1 III
92
Overall camera score
Xiaomi 15 Ultra
153
Sony Xperia 1 III
105
Bokeh8060
Preview8957
Zoomn/a104
Sources: DxOMark [Xiaomi 15 Ultra], [Sony Xperia 1 III]

Front camera

Matrix 32 MP 8 MP
Photo resolution 6528x4896 pixels 3264x2448 pixels
Aperture f/2.0 f/2.0
Focal length 22 mm 24 mm
Sensor Omnivision OV32B Samsung S5K4H7
Sensor size 1/3.14 1/4
Pixel size 0.7 μm 1.12 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) 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 6 (802.11 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 5.2
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 3.1
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoYes
2G BandsGSM 2/3/5/8GSM 850, 900, 1800, 1900
3G BandsWCDMA 1/2/4/5/6/8/19HSDPA 2100 (band 1), 1900 (band 2), 1700 (band 4), 850 (band 5), 800 (band 6), 900 (band 8), 800 (band 19)
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)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B19/B20/B25/B26/B28/B29/B34/B38/B39/B40/B41/B46/B66)
LTE categoryn/a20
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No Yes
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 15 Ultra
92.1 dB
Sony Xperia 1 III
81.5 dB

Other

Class Flagship Flagship
Announced February, 2025 yr April, 2021 yr
Release Date February, 2025 yr June, 2021 yr
Launch Price ($) n/a 1200
MSRP ($) 1099 n/a
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 90 W Yes 30 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.

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

Results

After analyzing the data, we consider Xiaomi 15 Ultra the clear winner in this comparison.

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