Xiaomi Redmi Note 14S vs Xiaomi 15 Ultra

Compared 2 smartphones : Xiaomi Redmi Note 14S Manufactured in March, 2025, with display 6.67 with chipsetMediaTek Helio G99 Ultra, vs Xiaomi 15 Ultra, Manufactured in February, 2025 with chipsetQualcomm Snapdragon 8 Elite. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi Note 14S
  • Lighter design: 179g vs 226g
Reasons to choose Xiaomi 15 Ultra
  • Larger display: 6.73in
  • Higher pixel density: 522ppi
  • Higher battery capacity: 5410mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.2
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

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

Review

Key Specs Xiaomi Redmi Note 14S and Xiaomi 15 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

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.67 in 6.73 in
Resolution 1080x2400 pixels 1440x3200 pixels
Aspect ratio 20:9 20:9
Pixel density 395 ppi 522 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (1-120 Hz)
Max brightness 1300 nits n/a
HDR support No Yes Dolby Vision
Touch Sampling Rate 240 Hz 300 Hz
Screen-to-body ratio 88.9 % 90 %
Features - DCI-P3
- DC dimming
- DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Redmi Note 14S
n/a
Xiaomi 15 Ultra
1599 nits
sRGB gamutn/a99.7 %
PWM (Flicker)n/a120 Hz
Response timen/a1 ms
Contrastn/a∞ Infinite

Design & Build

Design and ergonomics comparison
Height 161.1 mm (6.34 in) 161.3 mm (6.35 in)
Width 75 mm (2.95 in) 75.3 mm (2.96 in)
Thickness 8 mm (0.31 in) 9.35 mm (0.37 in)
Weight 179 g (6.31 oz) 226 g (7.97 oz)
Water resistance IP64 IP68
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Blue
- Purple
- White
- Black
- Silver
- Green
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi Redmi Note 14S
88.9 %
Xiaomi 15 Ultra
90 %

Performance

Testing Xiaomi Redmi Note 14S and Xiaomi 15 Ultra In benchmarks
Processor
Chipset MediaTek Helio G99 Ultra Qualcomm Snapdragon 8 Elite
Max Frequency 2200 MHz 4320 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
- 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 6 nm 3 nm
Neural Processor Yes Hexagon
Graphics Mali-G57 MP2 Adreno 830
GPU Cores 128 1536
GPU Frequency 1000 MHz 1100 MHz
FLOPS 128 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi Note 14S
730
Xiaomi 15 Ultra
3008
Geekbench 6 (Multi-Core)
Xiaomi Redmi Note 14S
1811
Xiaomi 15 Ultra
9065
Geekbench 6 (Single-Core)7303008
Geekbench 6 (Multi-Core)18119065
AnTuTu 10
AnTuTu 10
Xiaomi Redmi Note 14S
414914
Xiaomi 15 Ultra
2544373
CPU123393558586
GPU648121040161
Memory112469520300
UX114240425326
NanoReview Score4149142544373

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5333 MHz
Channels 2 2
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardMicroSDNo

Software

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

Battery

Volume 5000 mAh 5410 mAh
Max Charging Power 67 W 90 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (80 W)
Reverse Charging No Yes (Wireless)
Fast Charging Yes (50% in 16 min) Yes (72% in 30 min)
Full Charge Time 0:46 h 0:51 h
Battery Life Test
Battery Life
Xiaomi Redmi Note 14S
n/a
Xiaomi 15 Ultra
30:03
Web Browsingn/a12:19 h
Video Playbackn/a18:43 h
Gamesn/a06:45 h
Standby Moden/a141 h

Main camera

Matrix 200 MP 50 MP
Photo resolution 16320x12240 pixels 8192x6144 pixels
Zoom Digital Optical, 4.3x
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion n/a 1920 fps (1080p)
Wide-angle lens 120 ° 115 °
Lenses count Standard: 200 MP
Ultra-wide: 8 MP
Macro: 2 MP
Standard: 50 MP
Telephoto: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix200 MP50 MP
Aperturef/1.7f/1.63
Focal length23 mm23 mm
SensorSamsung S5KHP3Sony LYT-900
Sensor size1/1.41/1.0
Pixel size0.56 μm1.6 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a200 MP
Aperturen/af/2.6
Focal lengthn/a100 mm
Sensorn/aSamsung ISOCELL S5KHP9
Sensor sizen/a1/1.4
Pixel sizen/a0.56 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.2
Focal length15 mm14 mm
SensorSony IMX355Samsung S5KJN5
Sensor size1/4.01/2.76
Pixel size1 μm0.64 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Redmi Note 14S
n/a
Xiaomi 15 Ultra
158
Video quality
Xiaomi Redmi Note 14S
n/a
Xiaomi 15 Ultra
134
Overall camera score
Xiaomi Redmi Note 14S
n/a
Xiaomi 15 Ultra
153
Bokehn/a80
Previewn/a89

Front camera

Matrix 32 MP 32 MP
Photo resolution n/a 6528x4896 pixels
Aperture f/2.4 f/2.0
Focal length n/a 22 mm
Sensor Omnivision OV16A1Q Omnivision OV32B
Sensor size 1/3.0 1/3.14
Pixel size 1 μm 0.7 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- 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 5.2 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort No Yes
GPS - GPS
- GLONASS
- Beidou
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotYesNo
2G BandsGSM 850 900 1800 1900MHzGSM 2/3/5/8
3G BandsWCDMA 1/2/4/5/8WCDMA 1/2/4/5/6/8/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B20/B26/B28/B38/B40/B41/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)
5G SupportNoYes

Sound

Speakers Stereo n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi Redmi Note 14S
n/a
Xiaomi 15 Ultra
92.1 dB

Other

Class Mid-range Flagship
Announced March, 2025 yr February, 2025 yr
Release Date March, 2025 yr February, 2025 yr
Launch Price ($) 260 n/a
MSRP ($) n/a 1099
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 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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