Home Phone comparison Tecno Spark 40 and Realme 15T - Which is better?

Tecno Spark 40 vs Realme 15T

54 out 100
Tecno Spark 40
VS
66 out 100
Realme 15T
Tecno Spark 40
Realme 15T

Compared 2 smartphones : Tecno Spark 40 Manufactured in July, 2025, with display 6.67 with chipsetMediaTek Helio G81, vs Realme 15T, Manufactured in September, 2025with chipsetMediaTek Dimensity 6400 Max. 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 Tecno Spark 40
  • Larger display: 6.67in
  • Supports Dolby Atmos
Reasons to choose Realme 15T
  • Higher pixel density: 401ppi
  • Lighter design: 181g vs 188g
  • Higher battery capacity: 7000mAh vs 5200mAh

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 4/256 GB
- 6/128 GB
- 8/256 GB		 - 8/128 GB
- 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Tecno Spark 40 and Realme 15T
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:
Tecno Spark 40
vs
Realme 15T

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.67 in 6.57 in
Resolution 720x1600 pixels 1080x2372 pixels
Aspect ratio 20:9 20:9
Pixel density 263 ppi 401 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (60-120 Hz)
Max brightness n/a 4000 nits
HDR support No No
Touch Sampling Rate n/a 240 Hz
Screen-to-body ratio 84.2 % 87.6 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 165.6 mm (6.52 in) 158.36 mm (6.23 in)
Width 77 mm (3.03 in) 75.19 mm (2.96 in)
Thickness 7.7 mm (0.3 in) 7.79 mm (0.31 in)
Weight 188 g (6.63 oz) 181 g (6.38 oz)
Water resistance IP64 IP69
Back panel n/a Plastic
Frame Plastic Plastic
Colors - White
- Black
- Gray
- Blue		 - Silver
- Gray
- Blue
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Tecno Spark 40
84.2 %
Realme 15T
87.6 %

Performance

Testing Tecno Spark 40 and Realme 15T In benchmarks
Processor
Chipset MediaTek Helio G81 MediaTek Dimensity 6400 Max
Max Frequency 2000 MHz 2500 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 6/2 (Cortex-A55)
- 2/2.5 (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 1072 MHz
FLOPS 96 GFLOPS 137.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Tecno Spark 40
501
Realme 15T
808
Geekbench 6 (Multi-Core)
Tecno Spark 40
1410
Realme 15T
2046
Geekbench 6 (Single-Core)501808
Geekbench 6 (Multi-Core)14102046
Geekbench Compute (GPU)n/a1424
Sources: Geekbench v6 [Realme 15T]
AnTuTu 10
AnTuTu 10
Tecno Spark 40
255412
Realme 15T
605158
CPU84479223513
GPU3550448052
Memory67616167188
UX67813166405
NanoReview Score255412605158

Memory

RAM
RAM Size 4 GB 8 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 CardMicroSDMicroSD

Software

OS Android 15 Android 15
UI Skin HIOS 15 Realme UI 6.0

Battery

Volume 5200 mAh 7000 mAh
Max Charging Power 45 W 60 W
Battery Type Li-Po Silicon Carbon (Si/C)
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
Photo resolution n/a 8192x6144 pixels
Zoom Digital Digital
Flash Dual LED LED
Stabilization Digital Optical
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion n/a 120 fps (720p)
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
Focal lengthn/a27 mm
Sensorn/aOmnivision OV50D40 Light Hunter 400
Sensor sizen/a1/2.88
Pixel sizen/a0.61 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical

Front camera

Matrix 8 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Aperture n/a f/1.8
Focal length n/a 27 mm
Sensor CMOS Omnivision OV50D40 Light Hunter 400
Sensor size n/a 1/2.88
Pixel size n/a 0.61 μm
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 MiMO
- 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
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Varies by region
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G Bandsn/aGSM 850/900/1800MHz
3G Bandsn/aWCDMA 1/5/8
LTE Bands*n/aLTE (B1/B3/B5/B8/B40/B41)
5G SupportNoYes

Sound

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

Other

Class Budget Mid-range
Announced July, 2025 yr September, 2025 yr
Release Date July, 2025 yr September, 2025 yr
MSRP ($) 130 230
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, 60 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Realme 15T the clear winner in this comparison.

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