Samsung Galaxy Note 9 vs Xiaomi Redmi Note 15 Pro 4G

Compared 2 smartphones : Samsung Galaxy Note 9 Manufactured in August, 2018, with display 6.4 with chipsetSamsung Exynos 9 Octa 9810, vs Xiaomi Redmi Note 15 Pro 4G, Manufactured in December, 2025 with chipsetMediaTek Helio G200 Ultra. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy Note 9
  • Higher pixel density: 514ppi
  • Supports newer USB: 3.1 vs 2
Reasons to choose Xiaomi Redmi Note 15 Pro 4G
  • Larger display: 6.77in
  • Higher refresh rate: 120Hz
  • Lighter design: 195g vs 201g
  • Higher battery capacity: 6500mAh vs 4000mAh
  • Newer Bluetooth version: 5.3 vs 5
  • Infrared port

Versions

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

Review

Key Specs Samsung Galaxy Note 9 and Xiaomi Redmi Note 15 Pro 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

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.4 in 6.77 in
Resolution 1440x2960 pixels 1080x2392 pixels
Aspect ratio 18.5:9 n/a
Pixel density 514 ppi 388 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 520 nits n/a
HDR support Yes HDR10 n/a
Screen-to-body ratio 84 % 89.1 %
Features Always-On Display - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy Note 9
657 nits
Xiaomi Redmi Note 15 Pro 4G
n/a
sRGB gamut144.6 %n/a
PWM (Flicker)227 Hzn/a
Response time8 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 161.9 mm (6.37 in) 163.2 mm (6.43 in)
Width 76.4 mm (3.01 in) 76.3 mm (3 in)
Thickness 8.8 mm (0.35 in) 8 mm (0.31 in)
Weight 201 g (7.09 oz) 195 g (6.88 oz)
Water resistance IP68 IP65
Back panel Glass Plastic
Frame Metal Metal
Colors - Black
- Blue
- Brown
- Black
- Gray
- Blue
Fingerprint sensor Yes rear Yes, In-Display
Screen-to-body ratio
Samsung Galaxy Note 9
84 %
Xiaomi Redmi Note 15 Pro 4G
89.1 %

Performance

Testing Samsung Galaxy Note 9 and Xiaomi Redmi Note 15 Pro 4G In benchmarks
Processor
Chipset Samsung Exynos 9 Octa 9810 MediaTek Helio G200 Ultra
Max Frequency 2700 MHz 2500 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.9 (Cortex-A55)
- 4/2.9 (Exynos M3)
- 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process Samsung TSMC
Transistor Size 10 nm 6 nm
Neural Processor Yes Yes
Graphics Mali-G72 MP18 Mali-G57 MP2
GPU Cores 324 64
GPU Frequency 572 MHz 1100 MHz
FLOPS 370.6 GFLOPS 140.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy Note 9
828
Xiaomi Redmi Note 15 Pro 4G
734
Geekbench 6 (Multi-Core)
Samsung Galaxy Note 9
2026
Xiaomi Redmi Note 15 Pro 4G
2008
Geekbench 6 (Single-Core)828734
Geekbench 6 (Multi-Core)20262008
AnTuTu 10
AnTuTu 10
Samsung Galaxy Note 9
457443
Xiaomi Redmi Note 15 Pro 4G
447931
CPU147238139717
GPU13790665836
Memory86902124991
UX85397117387
NanoReview Score457443447931
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy Note 9
2333
Xiaomi Redmi Note 15 Pro 4G
n/a
Max Surface Temp.48.7 °Cn/a
Stability95 %n/a
Graphics Test13 fpsn/a
Graphics Score2333n/a
PCMark 3.0
PCMark 3.0
Samsung Galaxy Note 9
6325
Xiaomi Redmi Note 15 Pro 4G
n/a
Writing score6182n/a
Web score5312n/a
Video editing5462n/a
Data manipulation5867n/a
NanoReview Score6325n/a

Memory

RAM
RAM Size - 6 GB
- 8 GB
8 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1794 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB
256 GB
Storage TypeUFS 2.1UFS 2.2
Memory CardMicroSDMicroSD

Software

OS Android 8.1 (Upgradeable to Android 10) Android 15
OS Size 19 GB n/a
UI Skin One UI 2.5 HyperOS 2.0

Battery

Volume 4000 mAh 6500 mAh
Max Charging Power 15 W 18 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes Qi/PMA (15 W) No
Reverse Charging No Yes
Fast Charging Yes Samsung Adaptive Fast Charge (50% in 35 min) Yes
Full Charge Time 1:40 h n/a
Battery Life Test
Battery Life
Samsung Galaxy Note 9
19:26
Xiaomi Redmi Note 15 Pro 4G
n/a
Web Browsing07:31 hn/a
Video Playback11:36 hn/a
Games05:01 hn/a
Standby Mode96 hn/a

Main camera

Matrix 12 MP 200 MP
Photo resolution 4000x3000 pixels n/a
Zoom Optical, 2x Digital
Flash Dual LED LED
Stabilization Optical Optical
8K Recording No No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (720p) n/a
Wide-angle lens n/a 120 °
Lenses count Standard: 12 MP
Telephoto: 12 MP
Standard: 200 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
Main lens
Matrix12 MP200 MP
Aperturef/1.5 - 2.4f/2.2
Focal length26 mm25 mm
SensorSamsung SAK2L3n/a
Sensor size1/2.551/4 (0.25)
Pixel size1.4 μm0.7 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalOptical
Telephoto
Matrix12 MPn/a
Aperturef/2.4n/a
Focal length52 mmn/a
SensorSamsungn/a
Sensor size1/3.4n/a
Pixel size1 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrixn/a8 MP
Aperturen/af/2.2
Focal lengthn/a15 mm
Sensor sizen/a1/4 (0.25)
Pixel sizen/a1.12 μm
Stabilizationn/aDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy Note 9
107
Xiaomi Redmi Note 15 Pro 4G
n/a
Video quality
Samsung Galaxy Note 9
94
Xiaomi Redmi Note 15 Pro 4G
n/a
Overall camera score
Samsung Galaxy Note 9
103
Xiaomi Redmi Note 15 Pro 4G
n/a

Front camera

Matrix 8 MP 32 MP
Photo resolution 3264x2448 pixels n/a
Aperture f/1.7 f/2.2
Focal length 25 mm n/a
Sensor Samsung S5K3H1 CMOS
Sensor size 1/3.6 1/3 (0.33)
Pixel size 1.22 μm 0.7 μm
Autofocus Phase autofocus (Dual Pixel) No
Stabilization Digital Digital
Video resolution 1440p at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.3
Bluetooth features PBAP/PAB, PAN, OPP, MAP, LE, HSP, HID, HFP, DIP, AVRCP, A2DP LE
USB type USB Type-C USB Type-C
USB version 3.1 2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Varies by region
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotYesNo
2G BandsGSM 850, GSM 900, GSM 1800, GSM 1900n/a
3G BandsHSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100n/a
LTE Bands*LTE (B700/B800/B850/B900/B1700/B1800/B1900/B2100/B2300/B2500/B2600)n/a
LTE category18n/a
5G SupportNoNo

Sound

Speakers Stereo n/a
3.5 mm Jack Yes No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy Note 9
71.6 dB
Xiaomi Redmi Note 15 Pro 4G
n/a

Other

Class Flagship Mid-range
Announced August, 2018 yr December, 2025 yr
Release Date August, 2018 yr December, 2025 yr
Launch Price ($) 1000 n/a
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi Note 15 Pro 4G the clear winner in this comparison.

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