Home Phone comparison Tecno Spark 40C and OnePlus Ace 6 Ultra - Which is better?

Tecno Spark 40C vs OnePlus Ace 6 Ultra

55 out 100
Tecno Spark 40C
VS
89 out 100
OnePlus Ace 6 Ultra
Tecno Spark 40C
OnePlus Ace 6 Ultra

Compared 2 smartphones : Tecno Spark 40C Manufactured in August, 2025, with display 6.67 with chipsetMediaTek Helio G81, vs OnePlus Ace 6 Ultra, Manufactured in April, 2026 with chipsetMediaTek Dimensity 9500. 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 40C
  • Lighter design: 190g vs 217g
  • Supports Dolby Atmos
Reasons to choose OnePlus Ace 6 Ultra
  • Larger display: 6.78in
  • Higher pixel density: 450ppi
  • Higher refresh rate: 165Hz
  • Higher battery capacity: 8600mAh vs 6000mAh
  • Newer Bluetooth version: 6.0 vs 5.3

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 8/128 GB
- 8/256 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Tecno Spark 40C and OnePlus Ace 6 Ultra
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.
Customize your score
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 40C
vs
OnePlus Ace 6 Ultra

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.67 in 6.78 in
Resolution 720x1600 pixels 1272x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 263 ppi 450 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max brightness n/a 800 nits
HDR support No Yes, Dolby Vision
Touch Sampling Rate n/a 300 Hz
Screen-to-body ratio 84.2 % 89.7 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 165.6 mm (6.52 in) 162.5 mm (6.4 in)
Width 77 mm (3.03 in) 77.5 mm (3.05 in)
Thickness 8.4 mm (0.33 in) 8.5 mm (0.33 in)
Weight 190 g (6.7 oz) 217 g (7.65 oz)
Water resistance IP64 IP69
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - White
- Black
- Gray
- Blue		 - Black
- Gray
Fingerprint sensor Yes, In-Button Yes, In-Display
Screen-to-body ratio
Tecno Spark 40C
84.2 %
OnePlus Ace 6 Ultra
89.7 %

Performance

Testing Tecno Spark 40C and OnePlus Ace 6 Ultra In benchmarks
Processor
Chipset MediaTek Helio G81 MediaTek Dimensity 9500
Max Frequency 2000 MHz 4210 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 12 nm 3 nm
Neural Processor Yes MediaTek NPU 990
Graphics Mali-G52 MP2 n/a
GPU Cores 48 n/a
GPU Frequency 820 MHz n/a
FLOPS 78.7 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Tecno Spark 40C
444
OnePlus Ace 6 Ultra
3600
Geekbench 6 (Multi-Core)
Tecno Spark 40C
1372
OnePlus Ace 6 Ultra
10616
Geekbench 6 (Single-Core)4443600
Geekbench 6 (Multi-Core)137210616
Sources: Geekbench v6 [Tecno Spark 40C], [OnePlus Ace 6 Ultra]
AnTuTu 10
AnTuTu 10
Tecno Spark 40C
245537
OnePlus Ace 6 Ultra
3429868
CPU768561011104
GPU353861311664
Memory64168383286
UX69127723814
NanoReview Score2455373429868

Memory

RAM
RAM Size 4 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1800 MHz 5333 MHz
Channels 2 4
Storage
Storage Capacity128 GB256 GB
Storage TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 15 Android 16
UI Skin HIOS 15.1 ColorOS 16

Battery

Volume 6000 mAh 8600 mAh
Max Charging Power 18 W 120 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes Yes

Main camera

Matrix 13 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion n/a 240 fps (1080p)
Wide-angle lens n/a 112 °
Lenses count Standard: 13 MP
Depth		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix13 MP50 MP
Aperturef/1.8f/1.8
Focal length27 mm23 mm
Sensor sizen/a1/1.55 (0.65)
Pixel sizen/a1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrixn/a8 MP
Aperturen/af/2.2
Focal lengthn/a16 mm
Pixel sizen/a1.12 μm
Stabilizationn/aDigital

Front camera

Matrix 8 MP 16 MP
Photo resolution n/a 4608x3456 pixels
Aperture n/a f/2.4
Focal length n/a 23 mm
Sensor CMOS n/a
Sensor size n/a 1/3 (0.33)
Autofocus No No
Stabilization No 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 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 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
- 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 No
FM Radio Yes No
Dolby Atmos Yes No

Other

Class Budget Flagship
Announced July, 2025 yr April, 2026 yr
Release Date August, 2025 yr April, 2026 yr
MSRP ($) 100 555
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, 120 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider OnePlus Ace 6 Ultra the clear winner in this comparison.

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