Home Phone comparison Xiaomi 13 Ultra and Xiaomi Redmi Note 15 4G - Which is better?

Xiaomi 13 Ultra vs Xiaomi Redmi Note 15 4G

81 out 100
Xiaomi 13 Ultra
VS
64 out 100
Xiaomi Redmi Note 15 4G
Xiaomi 13 Ultra
Xiaomi Redmi Note 15 4G

Compared 2 smartphones : Xiaomi 13 Ultra Manufactured in April, 2023, with display 6.73 with chipsetQualcomm Snapdragon 8 Gen 2, vs Xiaomi Redmi Note 15 4G, Manufactured in December, 2025 with chipsetMediaTek Helio G100 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 Xiaomi 13 Ultra
  • Higher pixel density: 522ppi
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Infrared port
  • Includes charger
Reasons to choose Xiaomi Redmi Note 15 4G
  • Larger display: 6.77in
  • Lighter design: 183.7g vs 227g
  • Higher battery capacity: 6000mAh vs 5000mAh

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB		 - 6/128 GB
- 8/128 GB
- 8/256 GB
- 8/512 GB

Review

Key Specs Xiaomi 13 Ultra and Xiaomi Redmi Note 15 4G
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 13 Ultra
vs
Redmi Note 15 4G

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.77 in
Resolution 1440x3200 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 522 ppi 388 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (60-120 Hz)
Max brightness 1300 nits n/a
HDR support Yes Dolby Vision No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 89.7 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3
Display test
Peak brightness (auto)
Xiaomi 13 Ultra
1201 nits
Xiaomi Redmi Note 15 4G
n/a
sRGB gamut97.4 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 13 Ultra]

Design & Build

Design and ergonomics comparison
Height 163.18 mm (6.42 in) 164 mm (6.46 in)
Width 74.64 mm (2.94 in) 75.4 mm (2.97 in)
Thickness 9.06 mm (0.36 in) 7.4 mm (0.29 in)
Weight 227 g (8.01 oz) 183.7 g (6.48 oz)
Water resistance IP68 IP64
Cooling system Vapor chamber n/a
Back panel Eco Leather Plastic
Frame Metal Plastic
Colors - White
- Black
- Green		 - Black
- Blue
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 13 Ultra
89.7 %
Xiaomi Redmi Note 15 4G
89.7 %

Performance

Testing Xiaomi 13 Ultra and Xiaomi Redmi Note 15 4G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 2 MediaTek Helio G100 Ultra
Max Frequency 3200 MHz 2200 MHz
CPU Cores 8 (1 + 2 + 2 + 3) 8 (2 + 6)
Architecture - 3/2 (Cortex-A510)
- 2/2.8 (Cortex-A710)
- 2/2.8 (Cortex-A715)
- 1/3.2 (Cortex-X3)		 - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor Hexagon Yes
Graphics Adreno 740 Mali-G57 MP2
GPU Cores 1536 64
GPU Frequency 680 MHz 1000 MHz
FLOPS 2089 GFLOPS 128 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 13 Ultra
1995
Xiaomi Redmi Note 15 4G
730
Geekbench 6 (Multi-Core)
Xiaomi 13 Ultra
5419
Xiaomi Redmi Note 15 4G
2025
Geekbench 6 (Single-Core)1995730
Geekbench 6 (Multi-Core)54192025
AnTuTu 10
AnTuTu 10
Xiaomi 13 Ultra
1524921
Xiaomi Redmi Note 15 4G
437184
CPU389140132724
GPU59640572238
Memory297015109980
UX242361122242
NanoReview Score1524921437184
3DMark Wild Life
3DMark Wild Life
Xiaomi 13 Ultra
11992
Xiaomi Redmi Note 15 4G
n/a
Max Surface Temp.52 °Cn/a
Stability89 %n/a
Graphics Test71 fpsn/a
Graphics Score11992n/a
Sources: 3DMark [Xiaomi 13 Ultra]

Memory

RAM
RAM Size - 12 GB
- 16 GB		 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 3200 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		128 GB
Storage TypeUFS 4.0UFS 2.2
Memory CardNoNo

Software

OS Android 13 (Upgradeable to Android 14) Android 15
UI Skin HyperOS 1.0 HyperOS 2.0

Battery

Volume 5000 mAh 6000 mAh
Max Charging Power 90 W 33 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes Yes
Fast Charging Yes (58% in 15 min) Yes
Full Charge Time 0:40 h n/a
Battery Life Test
Battery Life
Xiaomi 13 Ultra
23:30
Xiaomi Redmi Note 15 4G
n/a
Web Browsing09:36 hn/a
Video Playback13:10 hn/a
Games05:28 hn/a
Standby Mode117 hn/a

Main camera

Matrix 503 MP 108 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 5x Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 1920 fps (1080p) n/a
Wide-angle lens 122 ° n/a
Lenses count Standard: 50.3 MP
Telephoto: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 Standard: 108 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix503 MP108 MP
Aperturef/1.9 - 4.0f/1.7
Focal length23 mm24 mm
SensorSony IMX989n/a
Sensor size1/11/1.67 (0.6)
Pixel size1.6 μm0.64 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/3.0n/a
Focal length120 mmn/a
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.64 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MPn/a
Aperturef/1.8n/a
Focal length12 mmn/a
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.64 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Xiaomi 13 Ultra
138
Xiaomi Redmi Note 15 4G
n/a
Video quality
Xiaomi 13 Ultra
137
Xiaomi Redmi Note 15 4G
n/a
Overall camera score
Xiaomi 13 Ultra
140
Xiaomi Redmi Note 15 4G
n/a
Bokeh65n/a
Preview72n/a
Zoom147n/a
Sources: DxOMark [Xiaomi 13 Ultra]

Front camera

Matrix 32 MP 20 MP
Photo resolution 6528x4896 pixels n/a
Aperture f/2.0 f/2.2
Focal length 22 mm n/a
Sensor CMOS Omnivision OV02F
Sensor size 1/3.14 1/5 (0.2)
Pixel size 0.7 μm 1.75 μm
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi 13 Ultra
123
Xiaomi Redmi Note 15 4G
n/a
Video quality
Xiaomi 13 Ultra
137
Xiaomi Redmi Note 15 4G
n/a

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.3 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 DP 1.2 No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Varies by region
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM B3 / B5 / B8n/a
3G BandsWCDMA B1 / B4 / B5 / B6 / B8 / B19n/a
LTE Bands*LTE (B1/B3/B4/B5/B7/B8/B12/B17/B18/B19/B26/B34/B38/B39/B40/B41/B42)n/a
LTE category20n/a
5G SupportYesNo

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No Yes
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Xiaomi 13 Ultra
89.5 dB
Xiaomi Redmi Note 15 4G
n/a

Other

Class Flagship Mid-range
Announced April, 2023 yr December, 2025 yr
Release Date April, 2023 yr December, 2025 yr
Launch Price ($) 1499 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 n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 13 Ultra the clear winner in this comparison.

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