Home Phone comparison Xiaomi Redmi Note 9 and Xiaomi Redmi Note 15 4G - Which is better?

Xiaomi Redmi Note 9 vs Xiaomi Redmi Note 15 4G

43 out 100
Xiaomi Redmi Note 9
VS
64 out 100
Xiaomi Redmi Note 15 4G
Xiaomi Redmi Note 9
Xiaomi Redmi Note 15 4G

Compared 2 smartphones : Xiaomi Redmi Note 9 Manufactured in June, 2020, with display 6.53 with chipsetMediaTek Helio G85, 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 Redmi Note 9
  • Higher pixel density: 395ppi
  • Infrared port
Reasons to choose Xiaomi Redmi Note 15 4G
  • Larger display: 6.77in
  • Higher refresh rate: 120Hz
  • Lighter design: 183.7g vs 199g
  • Higher battery capacity: 6000mAh vs 5020mAh
  • Newer Bluetooth version: 5.3 vs 5

Versions

Available versions and configurations
Memory Options - 3/64 GB
- 4/64 GB
- 4/128 GB
- 6/128 GB		 - 6/128 GB
- 8/128 GB
- 8/256 GB
- 8/512 GB

Review

Key Specs Xiaomi Redmi Note 9 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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi Redmi Note 9
vs
Redmi Note 15 4G

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.53 in 6.77 in
Resolution 1080x2340 pixels 1080x2340 pixels
Aspect ratio 19.5:9 n/a
Pixel density 395 ppi 388 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 450 nits n/a
HDR support No No
Screen-to-body ratio 83.5 % 89.7 %
Features n/a DCI-P3
Display test
Peak brightness (auto)
Xiaomi Redmi Note 9
464 nits
Xiaomi Redmi Note 15 4G
n/a
sRGB gamut97.7 %n/a
Response time32.2 msn/a
Contrast4608:1n/a
Sources: NotebookCheck [Xiaomi Redmi Note 9]

Design & Build

Design and ergonomics comparison
Height 162.3 mm (6.39 in) 164 mm (6.46 in)
Width 77.2 mm (3.04 in) 75.4 mm (2.97 in)
Thickness 8.9 mm (0.35 in) 7.4 mm (0.29 in)
Weight 199 g (7.02 oz) 183.7 g (6.48 oz)
Water resistance No IP64
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - White
- Gray
- Green		 - Black
- Blue
- Green
- Purple
Fingerprint sensor Yes rear Yes, In-Display
Screen-to-body ratio
Xiaomi Redmi Note 9
83.5 %
Xiaomi Redmi Note 15 4G
89.7 %

Performance

Testing Xiaomi Redmi Note 9 and Xiaomi Redmi Note 15 4G In benchmarks
Processor
Chipset MediaTek Helio G85 MediaTek Helio G100 Ultra
Max Frequency 2000 MHz 2200 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process TSMC TSMC
Transistor Size 12 nm 6 nm
Neural Processor Yes Yes
Graphics Mali-G52 MP2 Mali-G57 MP2
GPU Cores 48 64
GPU Frequency 1000 MHz 1000 MHz
FLOPS 96 GFLOPS 128 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi Note 9
516
Xiaomi Redmi Note 15 4G
730
Geekbench 6 (Multi-Core)
Xiaomi Redmi Note 9
1562
Xiaomi Redmi Note 15 4G
2025
Geekbench 6 (Single-Core)516730
Geekbench 6 (Multi-Core)15622025
AnTuTu 10
AnTuTu 10
Xiaomi Redmi Note 9
272057
Xiaomi Redmi Note 15 4G
437184
CPU89155132724
GPU4969472238
Memory60565109980
UX72643122242
NanoReview Score272057437184

Memory

RAM
RAM Size - 3 GB
- 4 GB
- 6 GB		 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1800 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		128 GB
Storage TypeeMMC 5.1UFS 2.2
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 15
OS Size 16.5 GB n/a
UI Skin MIUI 13 HyperOS 2.0

Battery

Volume 5020 mAh 6000 mAh
Max Charging Power 18 W 33 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging Yes Yes
Fast Charging Yes (50% in 40 min) Yes
Full Charge Time 1:30 h n/a
Battery Life Test
Battery Life
Xiaomi Redmi Note 9
24:19
Xiaomi Redmi Note 15 4G
n/a
Web Browsing09:31 hn/a
Video Playback14:21 hn/a
Games05:45 hn/a
Standby Mode121 hn/a

Main camera

Matrix 48 MP 108 MP
Photo resolution 8000x6000 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (720p) n/a
Wide-angle lens 118 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 108 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix48 MP108 MP
Aperturef/1.8f/1.7
Focal length26 mm24 mm
SensorSamsung S5KGM1n/a
Sensor size1/2.01/1.67 (0.6)
Pixel size0.8 μm0.64 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 13 MP 20 MP
Photo resolution 4128x3096 pixels n/a
Aperture f/2.3 f/2.2
Focal length 29 mm n/a
Sensor CMOS Omnivision OV02F
Sensor size 1/3.1 1/5 (0.2)
Pixel size 1.12 μm 1.75 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) 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)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.3
Bluetooth features LE, HID, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 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 Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 2100 / 2600 / 2300 / 2500n/a
3G BandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100n/a
LTE Bands*LTE (B850/B900/B1800/B2100/B2300/B2500/B2600)n/a
LTE category7n/a
5G SupportNoNo

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes Yes
Dolby Atmos No n/a
Speaker Test
Max Volume
Xiaomi Redmi Note 9
92.4 dB
Xiaomi Redmi Note 15 4G
n/a

Other

Class Mid-range Mid-range
Announced April, 2020 yr December, 2025 yr
Release Date June, 2020 yr December, 2025 yr
Launch Price ($) 199 n/a
Sensors - 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 4G the clear winner in this comparison.

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