Home Phone comparison Tecno Spark Slim and Vivo iQOO 15T - Which is better?

Tecno Spark Slim vs Vivo iQOO 15T

62 out 100
Tecno Spark Slim
VS
91 out 100
Vivo iQOO 15T
Tecno Spark Slim
Vivo iQOO 15T

Compared 2 smartphones : Tecno Spark Slim Manufactured in October, 2025, with display 6.78 with chipsetMediaTek Helio G200, vs Vivo iQOO 15T, Manufactured in May, 2026 with chipsetMediaTek Dimensity 9500 Monster. 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 216g
  • Supports Dolby Atmos
Reasons to choose Vivo iQOO 15T
  • Larger display: 6.82in
  • Higher pixel density: 510ppi
  • Higher battery capacity: 8000mAh vs 5160mAh
  • Newer Bluetooth version: 6.0 vs 5.4

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 Vivo iQOO 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 Slim
vs
Vivo iQOO 15T

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.82 in
Resolution 1224x2720 pixels 1440x3168 pixels
Aspect ratio 20:9 20:9
Pixel density 440 ppi 510 ppi
Refresh rate 144 Hz 144 Hz
Adaptive refresh rate Yes Yes
Max brightness 4500 nits 1800 nits
HDR support No Yes, Dolby Vision
Touch Sampling Rate n/a 300 Hz
Screen-to-body ratio 89.1 % 89.6 %
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) 163.4 mm (6.43 in)
Width 75.9 mm (2.99 in) 76.7 mm (3.02 in)
Thickness 5.93 mm (0.23 in) 8.3 mm (0.33 in)
Weight 156 g (5.5 oz) 216 g (7.62 oz)
Water resistance IP64 IP69
Cooling system n/a Vapor chamber
Back panel n/a Glass
Frame Plastic Metal
Colors - White
- Black		 - White
- Black
- Blue
- Purple
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Tecno Spark Slim
89.1 %
Vivo iQOO 15T
89.6 %

Performance

Testing Tecno Spark Slim and Vivo iQOO 15T In benchmarks
Processor
Chipset MediaTek Helio G200 MediaTek Dimensity 9500 Monster
Max Frequency 2200 MHz 4210 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)		 - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 6 nm 3 nm
Neural Processor Yes MediaTek NPU 990
Graphics Mali-G57 MP2 n/a
GPU Cores 64 n/a
GPU Frequency 1100 MHz n/a
FLOPS 140.8 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Tecno Spark Slim
718
Vivo iQOO 15T
3507
Geekbench 6 (Multi-Core)
Tecno Spark Slim
1985
Vivo iQOO 15T
10634
Geekbench 6 (Single-Core)7183507
Geekbench 6 (Multi-Core)198510634
Geekbench Compute (GPU)1480n/a
Sources: Geekbench v6 [Tecno Spark Slim], [Vivo iQOO 15T]
AnTuTu 10
AnTuTu 10
Tecno Spark Slim
591552
Vivo iQOO 15T
3815522
CPU2204761006840
GPU486651438159
Memory149900553590
UX172511816933
NanoReview Score5915523815522

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5333 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 OriginOS 6

Battery

Volume 5160 mAh 8000 mAh
Max Charging Power 45 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging Yes Yes
Fast Charging Yes (52% in 30 min) Yes
Full Charge Time 0:57 h n/a

Main camera

Matrix 50 MP 200 MP
Photo resolution 8160x6144 pixels 16320x12288 pixels
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion n/a 240 fps (1080p)
Lenses count Standard: 50 MP Standard: 200 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP200 MP
Aperturen/af/1.9
Sensor sizen/a1/1.56 (0.64)
Pixel sizen/a0.5 μm
AutofocusPhase autofocusLaser autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.0
Focal lengthn/a15 mm
Sensorn/aSamsung S5KJN5
Sensor sizen/a1/2.76 (0.36)
Pixel sizen/a0.64 μm
Stabilizationn/aDigital

Front camera

Matrix 13 MP 16 MP
Aperture n/a f/2.5
Sensor CMOS n/a
Autofocus No Phase autofocus
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 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 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 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 No No
FM Radio Yes No
Dolby Atmos Yes No

Other

Class Mid-range Flagship
Announced September, 2025 yr May, 2026 yr
Release Date October, 2025 yr May, 2026 yr
MSRP ($) 190 560
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, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

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