OnePlus Ace 6 vs Vivo X300 Ultra

The OnePlus Ace 6 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; estimated prices are $399 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 87/100 vs 65/100 (a 22-point difference). Key differences: the OnePlus Ace 6 has the bigger battery (7800 mAh vs 7000); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 3,391,399); the OnePlus Ace 6 is noticeably lighter (213g vs 230g).

The Vivo X300 Ultra significantly outperforms the OnePlus Ace 6 by 22 points (87/100 vs 65/100).
Profile comparison
Category scores
OnePlus Ace 6
Performance 73
Display 100
Camera 31
Battery 79
Design 33
Value for money 82
Vivo X300 Ultra
Performance 96
Display 100
Camera 96
Battery 77
Design 12
Value for money 44
What makes OnePlus Ace 6 better?
  • Bigger battery: 7800 vs 7000 mAh
  • Faster charging: 120W vs 100W
  • Higher refresh rate: 165Hz vs 120Hz
  • Lighter: 213g vs 230g
  • Cheaper: $399 vs $950

  • Longer battery life (79/100 vs 77/100)
  • Better design/ergonomics (33/100 vs 12/100)
  • Better value for money (82/100 vs 44/100)
What makes Vivo X300 Ultra better?
  • Higher AnTuTu: 4247433 vs 3391399
  • Better Geekbench Single: 3640 vs 3050
  • Better Geekbench Multi: 11033 vs 9300
  • Better main camera: 200MP vs 50MP

  • Higher performance (96/100 vs 73/100)
  • Better camera (96/100 vs 31/100)
Comparison verdict

Comparing the OnePlus Ace 6 vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 22 points higher (87/100 vs 65/100). In the "performance" category, the Vivo X300 Ultra leads (96/100 vs 73/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 31/100). In the "value for money" category, the OnePlus Ace 6 leads (82/100 vs 44/100). In the "performance" category, the Vivo X300 Ultra notably outperforms the OnePlus Ace 6 (96/100 vs 73/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo X300 Ultra significantly outperforms the OnePlus Ace 6 (96/100 vs 31/100). In the "battery" category, the OnePlus Ace 6 and the Vivo X300 Ultra are nearly equal (79/100 vs 77/100). In the "design" category, the OnePlus Ace 6 notably outperforms the Vivo X300 Ultra (33/100 vs 12/100). In the "value for money" category, the OnePlus Ace 6 significantly outperforms the Vivo X300 Ultra (82/100 vs 44/100).

OnePlus Ace 6: The OnePlus Ace 6 is a better fit for active users, those who care about battery life, budget-conscious buyers.
Vivo X300 Ultra: The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life.
Specs comparison
Specification OnePlus Ace 6 Vivo X300 Ultra
Processor Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Elite Gen 5
AnTuTu 3391399 4247433
Geekbench Single 3050 3640
Geekbench Multi 9300 11033
Display 6.8" OLED 6.8" LTPO OLED
Resolution 2800x1272 3168x1440
Refresh rate 165 Hz 120 Hz
Battery 7800 mAh 7000 mAh
Charging 120W 100W
Wireless charging 0W 40W
DXOMark (camera) 170
Main camera 50 MP 200 MP
Ultrawide 8 MP 50 MP
Telephoto 0 MP 200 MP
Front camera 16 MP 32 MP
RAM 12GB / 16GB 12GB / 16GB
Storage 256GB / 512GB / 1TB 256GB / 512GB / 1TB
OS Android 15 Android 16
Brightness (peak) 1800 nits
NFC yes yes
Protection IP68 IP69
Dimensions 163.4×77.0×8.3 mm 163.0×76.8×8.2 mm
Weight 213 g 230 g
Price $399 $950
Camera comparison
OnePlus Ace 6
  • Main: 50MP f/f/1.8
  • Ultrawide: 8MP
  • Front: 16MP
31
camera
Vivo X300 Ultra
  • Main: 200MP f/f/1.6
  • Ultrawide: 50MP
  • Telephoto: 200MP
  • Front: 32MP
96
camera
Display comparison
OnePlus Ace 6
  • 6.8" OLED
  • Resolution: 2800x1272
  • Refresh rate: 165 Hz
100
display
Vivo X300 Ultra
  • 6.8" LTPO OLED
  • Resolution: 3168x1440
  • Refresh rate: 120 Hz
100
display
Battery and charging
OnePlus Ace 6
  • 7800 mAh
  • Wired: 120W
  • No wireless charging
79
battery
Vivo X300 Ultra
  • 7000 mAh
  • NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
  • Wired: 100W
  • Wireless: 40W
77
battery
Overall performance score

We compared OnePlus Ace 6 and Vivo X300 Ultra, covering their specs and all relevant benchmarks.

OnePlus Ace 6 Qualcomm Snapdragon 8 Elite
65/100
3391399 AnTuTu
Vivo X300 Ultra Qualcomm Snapdragon 8 Elite Gen 5
87/100 +20.2%
4247433 AnTuTu

Vivo X300 Ultra leads OnePlus Ace 6 by 20.2% in our overall performance rating.

Benchmarks
Price and availability
OnePlus Ace 6
$399
Vivo X300 Ultra
$950

Price difference: $551. OnePlus Ace 6 is cheaper by $551.

Detailed category analysis
performance

In the "performance" category, the Vivo X300 Ultra notably outperforms the OnePlus Ace 6 (96/100 vs 73/100).

display

In the "display" category, both devices are on the same level — 100/100.

camera

In the "camera" category, the Vivo X300 Ultra significantly outperforms the OnePlus Ace 6 (96/100 vs 31/100).

battery

In the "battery" category, the OnePlus Ace 6 and the Vivo X300 Ultra are nearly equal (79/100 vs 77/100).

design

In the "design" category, the OnePlus Ace 6 notably outperforms the Vivo X300 Ultra (33/100 vs 12/100).

value for money

In the "value for money" category, the OnePlus Ace 6 significantly outperforms the Vivo X300 Ultra (82/100 vs 44/100).

Frequently asked questions
Which is better: the OnePlus Ace 6 or the Vivo X300 Ultra?

The Vivo X300 Ultra significantly outperforms the OnePlus Ace 6 by 22 points (87/100 vs 65/100).

What is the rating of the OnePlus Ace 6 and the Vivo X300 Ultra?

The OnePlus Ace 6 has a MobileRank rating of 65/100, the Vivo X300 Ultra — 87/100.

Which has the better camera: the OnePlus Ace 6 or the Vivo X300 Ultra?

The Vivo X300 Ultra leads on camera score (96/100 vs 31/100).

Which is more powerful: the OnePlus Ace 6 or the Vivo X300 Ultra?

The Vivo X300 Ultra leads on performance (96/100 vs 73/100).

Should you choose the OnePlus Ace 6 over the Vivo X300 Ultra?

The OnePlus Ace 6 is a better fit for active users, those who care about battery life, budget-conscious buyers. The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life.