Xiaomi 15 Ultra vs Xiaomi Redmi Note 15 Pro Plus 5G

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Xiaomi Redmi Note 15 Pro Plus 5G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 7s Gen 4. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi 15 Ultra
  • Higher pixel density: 522ppi
  • Newer Bluetooth version: 6.0 vs 5.4
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM
Reasons to choose Xiaomi Redmi Note 15 Pro Plus 5G
  • Larger display: 6.83in
  • Lighter design: 211g vs 226g
  • Higher battery capacity: 7000mAh vs 5410mAh

Versions

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

Review

Key Specs Xiaomi 15 Ultra and Xiaomi Redmi Note 15 Pro Plus 5G
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

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.83 in
Resolution 1440x3200 pixels 1220x2772 pixels
Aspect ratio 20:9 n/a
Pixel density 522 ppi 443 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (60-120 Hz)
HDR support Yes Dolby Vision Yes, Dolby Vision
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 90 % 86.8 %
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
Xiaomi Redmi Note 15 Pro Plus 5G
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 163.3 mm (6.43 in)
Width 75.3 mm (2.96 in) 78.3 mm (3.08 in)
Thickness 9.35 mm (0.37 in) 7.9 mm (0.31 in)
Weight 226 g (7.97 oz) 211 g (7.44 oz)
Water resistance IP68 IP69
Cooling system Vapor chamber n/a
Back panel Glass n/a
Frame Metal Plastic
Colors - White
- Black
- Silver
- Green
- White
- Black
- Blue
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Xiaomi Redmi Note 15 Pro Plus 5G
86.8 %

Performance

Testing Xiaomi 15 Ultra and Xiaomi Redmi Note 15 Pro Plus 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 7s Gen 4
Max Frequency 4320 MHz 2700 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 Silver (Cortex-A520))
- 3/2.4 (Kryo Gold (Cortex-A720))
- 1/2.7 (Kryo Prime (Cortex-A720))
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Yes
Graphics Adreno 830 Adreno 810
GPU Cores 1536 256
GPU Frequency 1100 MHz n/a
FLOPS 3379.2 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Xiaomi Redmi Note 15 Pro Plus 5G
1245
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Xiaomi Redmi Note 15 Pro Plus 5G
3271
Geekbench 6 (Single-Core)30081245
Geekbench 6 (Multi-Core)90653271
Geekbench Compute (GPU)n/a3612
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Xiaomi Redmi Note 15 Pro Plus 5G
849756
CPU558586253323
GPU1040161236053
Memory520300175783
UX425326184597
NanoReview Score2544373849756

Memory

RAM
RAM Size 12 GB 12 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 5333 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 4.1UFS 2.2
Memory CardNoNo

Software

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

Battery

Volume 5410 mAh 7000 mAh
Max Charging Power 90 W 90 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (80 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (72% in 30 min) Yes
Full Charge Time 0:51 h n/a
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Xiaomi Redmi Note 15 Pro Plus 5G
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 n/a
Zoom Optical, 4.3x Optical, 2.5x
Flash Dual LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (720p)
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: 8 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.63f/1.6
Focal length23 mmn/a
SensorSony LYT-900n/a
Sensor size1/1.01/2
Pixel size1.6 μm1 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix200 MP50 MP
Aperturef/2.6f/2.2
Focal length100 mmn/a
SensorSamsung ISOCELL S5KHP9n/a
Sensor size1/1.4n/a
Pixel size0.56 μmn/a
StabilizationOpticalDigital
Ultra-wide lens
Matrix50 MP8 MP
Aperturef/2.2n/a
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
Xiaomi Redmi Note 15 Pro Plus 5G
n/a
Video quality
Xiaomi 15 Ultra
134
Xiaomi Redmi Note 15 Pro Plus 5G
n/a
Overall camera score
Xiaomi 15 Ultra
153
Xiaomi Redmi Note 15 Pro Plus 5G
n/a
Bokeh80n/a
Preview89n/a

Front camera

Matrix 32 MP 32 MP
Photo resolution 6528x4896 pixels n/a
Aperture f/2.0 n/a
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 No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 60 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 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 5.4
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 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
- 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 *Yesn/a
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

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
Xiaomi Redmi Note 15 Pro Plus 5G
n/a

Other

Class Flagship Mid-range
Announced February, 2025 yr August, 2025 yr
Release Date February, 2025 yr August, 2025 yr
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, 90 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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