Home Phone comparison Infinix Zero 40 5G and Xiaomi Redmi Note 15 4G - Which is better?

Infinix Zero 40 5G vs Xiaomi Redmi Note 15 4G

69 out 100
Infinix Zero 40 5G
VS
64 out 100
Xiaomi Redmi Note 15 4G
Infinix Zero 40 5G
Xiaomi Redmi Note 15 4G

Compared 2 smartphones : Infinix Zero 40 5G Manufactured in September, 2024, with display 6.78 with chipsetMediaTek Dimensity 8200 Ultimate, vs Xiaomi Redmi Note 15 4G, Manufactured in December, 2025with 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 Infinix Zero 40 5G
  • Larger display: 6.78in
  • Higher pixel density: 393ppi
  • Higher refresh rate: 144Hz
  • Infrared port
  • Includes charger
Reasons to choose Xiaomi Redmi Note 15 4G
  • Lighter design: 183.7g vs 195g
  • Higher battery capacity: 6000mAh vs 5000mAh

Versions

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

Review

Key Specs Infinix Zero 40 5G 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
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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:
Infinix Zero 40 5G
vs
Redmi Note 15 4G

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.77 in
Resolution 1080x2436 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 393 ppi 388 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 1300 nits n/a
HDR support Yes HDR10 No
Touch Sampling Rate 360 Hz n/a
Screen-to-body ratio 90.3 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3

Design & Build

Design and ergonomics comparison
Height 164.3 mm (6.47 in) 164 mm (6.46 in)
Width 74.8 mm (2.94 in) 75.4 mm (2.97 in)
Thickness 7.9 mm (0.31 in) 7.4 mm (0.29 in)
Weight 195 g (6.88 oz) 183.7 g (6.48 oz)
Water resistance IP54 IP64
Back panel n/a Plastic
Frame Plastic Plastic
Colors - Black
- Gray
- Purple		 - Black
- Blue
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Infinix Zero 40 5G
90.3 %
Xiaomi Redmi Note 15 4G
89.7 %

Performance

Testing Infinix Zero 40 5G and Xiaomi Redmi Note 15 4G In benchmarks
Processor
Chipset MediaTek Dimensity 8200 Ultimate MediaTek Helio G100 Ultra
Max Frequency 3100 MHz 2200 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/2 (Cortex A55)
- 3/3 (Cortex A78)
- 1/3.1 (Cortex A78)		 - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor MediaTek APU 580 Yes
Graphics Mali-G610 MP6 Mali-G57 MP2
GPU Cores 768 64
GPU Frequency 950 MHz 1000 MHz
FLOPS 1442 GFLOPS 128 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Infinix Zero 40 5G
1251
Xiaomi Redmi Note 15 4G
730
Geekbench 6 (Multi-Core)
Infinix Zero 40 5G
3932
Xiaomi Redmi Note 15 4G
2025
Geekbench 6 (Single-Core)1251730
Geekbench 6 (Multi-Core)39322025
Geekbench Compute (GPU)4512n/a
Sources: Geekbench v6 [Infinix Zero 40 5G]
AnTuTu 10
AnTuTu 10
Infinix Zero 40 5G
958115
Xiaomi Redmi Note 15 4G
437184
CPU265331132724
GPU23734572238
Memory211810109980
UX243629122242
NanoReview Score958115437184

Memory

RAM
RAM Size 12 GB 6 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency 3200 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 256 GB
- 512 GB		128 GB
Storage TypeUFS 3.1UFS 2.2
Memory CardNoNo

Software

OS Android 14 Android 15
UI Skin XOS 14.5 HyperOS 2.0

Battery

Volume 5000 mAh 6000 mAh
Max Charging Power 45 W 33 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (20 W) No
Reverse Charging Yes Yes
Fast Charging Yes (60% in 25 min) Yes
Full Charge Time 1:04 h n/a

Main camera

Matrix 108 MP 108 MP
Photo resolution 12000x9000 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Optical Digital
8K Recording No No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (1080p) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 108 MP
Ultra-wide: 50 MP
Depth: 2 MP		 Standard: 108 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix108 MP108 MP
Aperturef/1.8f/1.7
Focal lengthn/a24 mm
SensorSamsung S5KHM6n/a
Sensor size1/1.671/1.67 (0.6)
Pixel size0.64 μm0.64 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix50 MPn/a
Aperturef/2.0n/a
SensorSamsung S5KJN1n/a
Sensor size1/2.76n/a
Pixel size0.64 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 50 MP 20 MP
Aperture f/2.5 f/2.2
Focal length 21 mm n/a
Sensor Samsung ISOCELL S5KJN1 Omnivision OV02F
Sensor size 1/2.76 1/5 (0.2)
Pixel size 0.64 μm 1.75 μm
Autofocus Phase autofocus 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 6E (802.11 a/b/g/n/ac/ax) 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 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No 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
5G SupportYesNo

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio Yes Yes
Dolby Atmos No n/a

Other

Class Mid-range Mid-range
Announced August, 2024 yr December, 2025 yr
Release Date September, 2024 yr December, 2025 yr
Launch Price ($) 345 n/a
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 45 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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