Home Phone comparison Tecno Spark Slim and OnePlus 15 - Which is better?

Tecno Spark Slim vs OnePlus 15

62 out 100
Tecno Spark Slim
VS
91 out 100
OnePlus 15
Tecno Spark Slim
OnePlus 15

Compared 2 smartphones : Tecno Spark Slim Manufactured in October, 2025, with display 6.78 with chipsetMediaTek Helio G200, vs OnePlus 15, Manufactured in October, 2025 with chipsetQualcomm Snapdragon 8 Elite Gen 5. 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 Slim
  • Lighter design: 156g vs 211g
  • Supports Dolby Atmos
Reasons to choose OnePlus 15
  • Higher pixel density: 450ppi
  • Higher refresh rate: 165Hz
  • Higher battery capacity: 7300mAh vs 5160mAh
  • Newer Bluetooth version: 6.0 vs 5.4
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options n/a - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Tecno Spark Slim and OnePlus 15
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 Slim
vs
OnePlus 15

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.78 in
Resolution 1224x2720 pixels 1272x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 440 ppi 450 ppi
Refresh rate 144 Hz 165 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 4500 nits 1800 nits
HDR support No Yes, Dolby Vision
Screen-to-body ratio 89.1 % 91.2 %
Features - DCI-P3
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 164.2 mm (6.46 in) 161.4 mm (6.35 in)
Width 75.9 mm (2.99 in) 76.7 mm (3.02 in)
Thickness 5.93 mm (0.23 in) 8.1 mm (0.32 in)
Weight 156 g (5.5 oz) 211 g (7.44 oz)
Water resistance IP64 IP69
Cooling system n/a Vapor chamber
Back panel n/a Glass
Frame Plastic Metal
Colors - White
- Black		 - Black
- Gold
- Purple
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Tecno Spark Slim
89.1 %
OnePlus 15
91.2 %

Performance

Testing Tecno Spark Slim and OnePlus 15 In benchmarks
Processor
Chipset MediaTek Helio G200 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2200 MHz 4600 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)		 6/3.63 ()
Process TSMC TSMC
Transistor Size 6 nm 3 nm
Neural Processor Yes Hexagon
Graphics Mali-G57 MP2 Adreno 840
GPU Cores 64 1536
GPU Frequency 1100 MHz 1200 MHz
FLOPS 140.8 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Tecno Spark Slim
718
OnePlus 15
3726
Geekbench 6 (Multi-Core)
Tecno Spark Slim
1985
OnePlus 15
11199
Geekbench 6 (Single-Core)7183726
Geekbench 6 (Multi-Core)198511199
Geekbench Compute (GPU)148027829
Sources: Geekbench v6 [Tecno Spark Slim], [OnePlus 15]
AnTuTu 10
AnTuTu 10
Tecno Spark Slim
591552
OnePlus 15
3434737
CPU220476968935
GPU486651235307
Memory149900489823
UX172511740672
NanoReview Score5915523434737

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardNoNo

Software

OS Android 15 Android 16
UI Skin HIOS 15 OxygenOS 16

Battery

Volume 5160 mAh 7300 mAh
Max Charging Power 45 W 120 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (50 W)
Reverse Charging Yes Yes, (Wireless)
Fast Charging Yes (52% in 30 min) Yes (50% in 15 min)
Full Charge Time 0:57 h 0:43 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8160x6144 pixels 8192x6144 pixels
Zoom Digital Optical, 3.5x
Flash Dual LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Wide-angle lens n/a 116 °
Lenses count Standard: 50 MP Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturen/af/1.8
Focal lengthn/a24 mm
Sensorn/aSony LYTIA-T808
Sensor sizen/a1/1.56
Pixel sizen/a1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.8
Focal lengthn/a85 mm
Sensorn/aSamsung S5KJN5
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.0
Focal lengthn/a15 mm
Sensorn/aSamsung S5KJN5
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aDigital

Front camera

Matrix 13 MP 32 MP
Photo resolution n/a 6560x4928 pixels
Aperture n/a f/2.4
Focal length n/a 21 mm
Sensor CMOS Sony IMX615
Sensor size n/a 1/2.74
Pixel size n/a 0.8 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- 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 5.4 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
5G SupportNoYes

Sound

3.5 mm Jack No No
FM Radio Yes No
Dolby Atmos Yes No

Other

Class Mid-range Flagship
Announced September, 2025 yr October, 2025 yr
Release Date October, 2025 yr October, 2025 yr
MSRP ($) 190 899
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 Yes, 120 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

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