Tecno Spark 40 vs Xiaomi Redmi Note 15 5G

Compared 2 smartphones : Tecno Spark 40 Manufactured in July, 2025, with display 6.67 with chipsetMediaTek Helio G81, vs Xiaomi Redmi Note 15 5G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 6 Gen 3. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Tecno Spark 40
  • Newer Bluetooth version: 5.3 vs 5.1
  • Supports Dolby Atmos
Reasons to choose Xiaomi Redmi Note 15 5G
  • Larger display: 6.77in
  • Higher pixel density: 388ppi
  • Lighter design: 178g vs 188g
  • Higher battery capacity: 5800mAh vs 5200mAh

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 4/256 GB
- 6/128 GB
- 8/256 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB
- 12/256 GB

Review

Key Specs Tecno Spark 40 and Xiaomi Redmi Note 15 5G
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

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.67 in 6.77 in
Resolution 720x1600 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 263 ppi 388 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (60-120 Hz)
HDR support No No
Screen-to-body ratio 84.2 % 89.1 %
Features n/a DCI-P3

Design & Build

Design and ergonomics comparison
Height 165.6 mm (6.52 in) 165 mm (6.5 in)
Width 77 mm (3.03 in) 75.4 mm (2.97 in)
Thickness 7.7 mm (0.3 in) 7.4 mm (0.29 in)
Weight 188 g (6.63 oz) 178 g (6.28 oz)
Water resistance IP64 IP68
Frame Plastic Plastic
Colors - White
- Black
- Gray
- Blue
- White
- Black
- Blue
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Tecno Spark 40
84.2 %
Xiaomi Redmi Note 15 5G
89.1 %

Performance

Testing Tecno Spark 40 and Xiaomi Redmi Note 15 5G In benchmarks
Processor
Chipset MediaTek Helio G81 Qualcomm Snapdragon 6 Gen 3
Max Frequency 2000 MHz 2400 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)
- 4/1.8 (Cortex-A55)
- 4/2.4 (Cortex-A78)
Process TSMC Samsung
Transistor Size 12 nm 4 nm
Neural Processor Yes Hexagon
Graphics Mali-G52 MP2 Adreno 710
GPU Cores 48 256
GPU Frequency 1000 MHz 1010 MHz
FLOPS 96 GFLOPS 517.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Tecno Spark 40
501
Xiaomi Redmi Note 15 5G
1015
Geekbench 6 (Multi-Core)
Tecno Spark 40
1410
Xiaomi Redmi Note 15 5G
2890
Geekbench 6 (Single-Core)5011015
Geekbench 6 (Multi-Core)14102890
AnTuTu 10
AnTuTu 10
Tecno Spark 40
255412
Xiaomi Redmi Note 15 5G
608985
CPU84479200717
GPU35504141388
Memory67616118625
UX67813148255
NanoReview Score255412608985

Memory

RAM
RAM Size 4 GB 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1800 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity128 GB128 GB
Storage TypeeMMC 5.1UFS 2.2
Memory CardMicroSDNo

Software

OS Android 15 Android 15
UI Skin HIOS 15 HyperOS 2.0

Battery

Volume 5200 mAh 5800 mAh
Max Charging Power 45 W 45 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes (50% in 21 min) Yes
Full Charge Time 0:56 h n/a

Main camera

Matrix 50 MP 50 MP
Zoom Digital Digital
Flash Dual 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)
Lenses count Standard: 50 MP
Depth
Standard: 50 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturen/af/1.8
Sensor sizen/a1/2
Pixel sizen/a0.64 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital

Front camera

Matrix 8 MP 8 MP
Aperture n/a f/2.0
Sensor CMOS n/a
Autofocus No No
Stabilization No Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 60 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 5.3 5.1
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
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
5G SupportNoYes

Sound

3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos Yes n/a

Other

Class Budget Mid-range
Announced July, 2025 yr August, 2025 yr
Release Date July, 2025 yr August, 2025 yr
MSRP ($) 130 n/a
Sensors - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 45 W Yes, 45 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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