Home Phone comparison Xiaomi 14 Ultra and Xiaomi Redmi Note 15 4G - Which is better?

Xiaomi 14 Ultra vs Xiaomi Redmi Note 15 4G

87 out 100
Xiaomi 14 Ultra
VS
64 out 100
Xiaomi Redmi Note 15 4G
Xiaomi 14 Ultra
Xiaomi Redmi Note 15 4G

Compared 2 smartphones : Xiaomi 14 Ultra Manufactured in February, 2024, with display 6.73 with chipsetQualcomm Snapdragon 8 Gen 3, 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 14 Ultra
  • Higher pixel density: 522ppi
  • Newer Bluetooth version: 5.4 vs 5.3
  • 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 219.8g
  • Higher battery capacity: 6000mAh vs 5000mAh

Versions

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

Review

Key Specs Xiaomi 14 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 14 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 (1-120 Hz) Yes (60-120 Hz)
Max brightness 3000 nits n/a
HDR support Yes Dolby Vision No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 89.9 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3
Display test
Peak brightness (auto)
Xiaomi 14 Ultra
1269 nits
Xiaomi Redmi Note 15 4G
n/a
sRGB gamut98.9 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 14 Ultra]

Design & Build

Design and ergonomics comparison
Height 161.4 mm (6.35 in) 164 mm (6.46 in)
Width 75.3 mm (2.96 in) 75.4 mm (2.97 in)
Thickness 9.2 mm (0.36 in) 7.4 mm (0.29 in)
Weight 219.8 g (7.75 oz) 183.7 g (6.48 oz)
Water resistance IP68 IP64
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - White
- Black		 - Black
- Blue
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 14 Ultra
89.9 %
Xiaomi Redmi Note 15 4G
89.7 %

Performance

Testing Xiaomi 14 Ultra and Xiaomi Redmi Note 15 4G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 MediaTek Helio G100 Ultra
Max Frequency 3300 MHz 2200 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (2 + 6)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor Hexagon Yes
Graphics Adreno 750 Mali-G57 MP2
GPU Cores 1536 64
GPU Frequency 903-1000 MHz 1000 MHz
FLOPS 2774 GFLOPS 128 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 14 Ultra
2197
Xiaomi Redmi Note 15 4G
730
Geekbench 6 (Multi-Core)
Xiaomi 14 Ultra
7058
Xiaomi Redmi Note 15 4G
2025
Geekbench 6 (Single-Core)2197730
Geekbench 6 (Multi-Core)70582025
Geekbench Compute (GPU)16435n/a
Sources: Geekbench v6 [Xiaomi 14 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi 14 Ultra
2019519
Xiaomi Redmi Note 15 4G
437184
CPU436541132724
GPU84066372238
Memory431435109980
UX328880122242
NanoReview Score2019519437184
3DMark Wild Life
3DMark Wild Life
Xiaomi 14 Ultra
15437
Xiaomi Redmi Note 15 4G
n/a
Max Surface Temp.47.7 °Cn/a
Stability86 %n/a
Graphics Test92 fpsn/a
Graphics Score15437n/a
Sources: 3DMark [Xiaomi 14 Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi 14 Ultra
16417
Xiaomi Redmi Note 15 4G
n/a
Writing score19642n/a
Web score14876n/a
Video editing7929n/a
Data manipulation15903n/a
NanoReview Score16417n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4200 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 14 (Upgradeable to Android 15) Android 15
OS Size 31 GB n/a
UI Skin HyperOS 2.0 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 (80 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (52% in 15 min) Yes
Full Charge Time 0:34 h n/a
Battery Life Test
Battery Life
Xiaomi 14 Ultra
22:08
Xiaomi Redmi Note 15 4G
n/a
Web Browsing09:23 hn/a
Video Playback12:26 hn/a
Games04:35 hn/a
Standby Mode109 hn/a

Main camera

Matrix 50 MP 108 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 5x Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 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 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
Matrix50 MP108 MP
Aperturef/1.6 - 4.0f/1.7
Focal length23 mm24 mm
SensorSony LYT-900n/a
Sensor size1/1.01/1.67 (0.6)
Pixel size1.6 μm0.64 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/1.8n/a
Focal length120 mmn/a
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.7 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 size0.7 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Xiaomi 14 Ultra
144
Xiaomi Redmi Note 15 4G
n/a
Video quality
Xiaomi 14 Ultra
150
Xiaomi Redmi Note 15 4G
n/a
Overall camera score
Xiaomi 14 Ultra
149
Xiaomi Redmi Note 15 4G
n/a
Bokeh75n/a
Preview83n/a
Zoom160n/a
Sources: DxOMark [Xiaomi 14 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 Omnivision OV32B Omnivision OV02F
Sensor size 1/3.14 1/5 (0.2)
Pixel size 0.7 μm 1.75 μm
Autofocus No No
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 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 5.4 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 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/B18/B19/B20/B26/B28/B38/B40/B41/B42/B48/B66)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 14 Ultra
90.3 dB
Xiaomi Redmi Note 15 4G
n/a

Other

Class Flagship Mid-range
Announced February, 2024 yr December, 2025 yr
Release Date February, 2024 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

Note

Xiaomi 14 Ultra:

The rear cover is available in glass or eco-leather, while the frame can be aluminum or titanium. The front glass is either Xiaomi Shield Glass or Xiaomi Longjing Glass.

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

Results

After analyzing the data, we consider Xiaomi 14 Ultra the clear winner in this comparison.

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