Vivo X300 FE vs OnePlus Ace 6 Ultra

86 out of 100
Vivo X300 FE
VS
89 out of 100
OnePlus Ace 6 Ultra

Here we compared two flagship smartphones: the 6.31-inch Vivo X300 FE (with Qualcomm Snapdragon 8 Gen 5) that was released on March 4, 2026, against the OnePlus Ace 6 Ultra, which is powered by MediaTek Dimensity 9500 and came out 2 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

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Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Vivo X300 FE
  • The rear camera has a 3x optical zoom
  • Handles wireless charging up to 40W
  • Slow-motion recording at 960FPS
  • Supports Dolby Atmos sound technology
  • Better grip in hands – the body is 5.74 mm narrower
  • Weighs 27 grams less
  • The front-facing camera can record video at 4K
  • Ready for eSIM technology
Reasons to consider the OnePlus Ace 6 Ultra
  • Comes with 2100 mAh larger battery capacity: 8600 vs 6500 mAh
  • Higher display refresh rate – 165 Hz
  • Has a 0.47 inch larger screen size
  • Supports higher wattage charging (120W versus 90W)
  • 20% better performance in AnTuTu Benchmark (3429K versus 2869K)
  • 28% faster in single-core GeekBench 6 test: 3600 and 2818 points

Review

Evaluation of Vivo X300 FE and OnePlus Ace 6 Ultra crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
87*
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
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Value for money (Beta)

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Currency
12 / 256 GB
VS
12 / 256 GB
75.3
(Good)
Value Index
99.8
(Very good)

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type AMOLED AMOLED
Size 6.31 inches 6.78 inches
Resolution 1260 x 2800 pixels 1272 x 2772 pixels
Aspect ratio 19.5:9 19.5:9
PPI 461 ppi 450 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max rated brightness 1800 nits 800 nits
Max rated brightness in HDR 5000 nits 1800 nits
HDR support Yes, HDR10+ Yes, Dolby Vision
Touch sampling rate 300 Hz 300 Hz
Screen protection Tempered glass Crystal Shield Glass
Screen-to-body ratio 90.3% 89.7%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space 99.8% -
PWM 360 Hz -
Response time 1 ms -
Contrast ∞ Infinity -
Screen space comparison
Ace 6 Ultra
6.78″ (19.5:9 ratio) = 17.5 in2
X300 FE
6.31″ (19.5:9 ratio) = 15.1 in2
~15% more screen space
Peak brightness test (auto)
1070 nits
Sources: NotebookCheck [3]

Design and build

Height 150.83 mm (5.94 inches) 162.5 mm (6.4 inches)
Width 71.76 mm (2.83 inches) 77.5 mm (3.05 inches)
Thickness 7.99 mm (0.31 inches) 8.5 mm (0.33 inches)
Weight 190 g (6.7 oz) 217 g (7.65 oz)
Waterproof IP69 IP69
Advanced cooling Vapor chamber Vapor chamber
Rear material Glass Glass
Frame material Metal Metal
Colors White, Black, Purple Black, Gray
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
X300 FE +1%
90.3%
89.7%

Performance

Chipset specifications of Vivo X300 FE and OnePlus Ace 6 Ultra
SoC
Chipset Qualcomm Snapdragon 8 Gen 5 MediaTek Dimensity 9500
Max clock 3800 MHz 4210 MHz
CPU cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6 cores at 3.32 GHz: Oryon Performance
- 2 cores at 3.8 GHz: Oryon Prime
- 4 cores at 2.7 GHz: C1-Pro
- 3 cores at 3.5 GHz: C1-Premium
- 1 core at 4.21 GHz: C1-Ultra
L3 cache 6 MB 16 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 3 nanometers
Neural processor (NPU) Hexagon MediaTek NPU 990
GPU
Graphics Adreno 829 Mali-G1 Ultra MP12
GPU shading units 1024 1536
GPU clock 1225 MHz 1716 MHz
FLOPS ~2508.8 GFLOPS ~5271.5 GFLOPS

Benchmarks

Benchmark comparison of Vivo X300 FE and OnePlus Ace 6 Ultra
Geekbench 6 (Single-Core)
2818
3600
Geekbench 6 (Multi-Core)
9052
10616
Compute Score (GPU)
16659
25593
Compute Score (GPU) 16659 25593
Single-core score 2818 3600
Multi-core score 9052 10616
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
2869139
3429868
CPU 861821 1011104
GPU 1005345 1311664
Memory 381541 383286
UX 620432 723814
Total score 2869139 3429868
Samples Less than 3 Less than 3
AnTuTu 11 Ranking List (129th and 53rd place)

Recent User Tests

The latest benchmark tests that have been submitted by users
Vivo X300 FE
DateBenchmarkResult
📘 2026-09-20 (Omar)AnTuTu 123231104
OnePlus Ace 6 Ultra
DateBenchmarkResult
📘 2026-09-26 (Ghoul)AnTuTu 123633640

Memory

RAM
RAM size 12 GB 12 GB
Memory type LPDDR5X LPDDR5X
Memory clock - 5333 MHz
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.1 UFS 4.1
Memory card No No

Software

Operating system Android 16 Android 16
ROM OriginOS 6 ColorOS 16
OS size 27 GB -
OS updates 5 years -
Security updates 7 years -

Battery

Capacity 6500 mAh 8600 mAh
Max charge power 90 W 120 W
Battery type Silicon-Carbon (Si/C) Silicon-Carbon (Si/C)
Replaceable No No
Wireless charging Yes (40 W) No
Reverse charging Yes Yes
Bypass charging - Yes
Fast charging Yes (48% in 30 min) Yes
Full charging time 0:58 hr -

Main camera

Matrix 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8192 x 6144
Zoom Optical, 3x Digital
Flash LED Dual LED
Stabilization Optical Optical
8K video recording No No
4K video recording Up to 60FPS Up to 120FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (1080p) 240 FPS (1080p)
Angle of widest lens 110° 112°
Lenses 1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 8 MP
1) Standard: 50 MP
2) Ultrawide: 8 MP
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 50 MP 50 MP
Aperture f/1.6 f/1.8
Focal length 23 mm 23 mm
Sensor Sony IMX921 -
Sensor size 1/1.56" (≈ 0.64 inch) 1/1.55" (≈ 0.65 inch)
Pixel size 1 micron 1 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Optical Optical
Telephoto lens
Image resolution 50 MP -
Aperture f/2.6 -
Focal length 70 mm -
Sensor Sony IMX882 -
Sensor size 1/1.95" (≈ 0.51 inch) -
Pixel size 0.8 micron -
Stabilization Optical -
Ultra-wide lens
Image resolution 8 MP 8 MP
Aperture f/2.2 f/2.2
Focal length 15 mm 16 mm
Sensor size 1/4.0" (≈ 0.25 inch) -
Pixel size 1.12 micron 1.12 micron
Stabilization Digital Digital

Selfie camera

Megapixels 50 megapixels 16 megapixels
Image resolution 8192 x 6144 4608 x 3456
Aperture f/2.0 f/2.4
Focal length 21 mm 23 mm
Sensor Samsung S5KJN1 -
Sensor size 1/2.76" (≈ 0.36 inch) 1/3" (≈ 0.33 inch)
Pixel size 0.64 micron -
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 1080p (Full HD) at 30 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) 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 6.0 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, QZSS GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Yes Yes
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes No
Hybrid slot No No
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes No
Speakers test
Max loudness
79.9 dB

Other

Category Flagship Flagship
Announced March 2026 April 2026
Release date March 2026 April 2026
Launch price (MSRP) $649 $555
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 90 W Yes, 120 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the performance, gaming, battery life, and software are more important to you, then choose the OnePlus Ace 6 Ultra. But if the camera, connectivity, and sound are more of a priority – go for the Vivo X300 FE.

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