OPPO K15 vs Vivo X300 Pro

The OPPO K15 (2026) runs on the Dimensity 7360 Super, while the Vivo X300 Pro (2025) runs on the Dimensity 9500. By overall MobileRank rating, the Vivo X300 Pro leads — 87/100 vs 63/100 (a 24-point difference). Key differences: the OPPO K15 has the bigger battery (8000 mAh vs 6510); the main camera is 50 MP vs 200 MP; the Vivo X300 Pro is faster in AnTuTu (3,269,794 vs 877,641); the OPPO K15 is noticeably lighter (200g vs 226g).

The Vivo X300 Pro significantly outperforms the OPPO K15 by 24 points (87/100 vs 63/100).
Profile comparison
Category scores
OPPO K15
Performance 55
Display 85
Camera 60
Battery 71
Portability 60
Value for money
Vivo X300 Pro
Performance 93
Display 84
Camera 96
Battery 81
Portability 43
Value for money 86
What makes OPPO K15 better?
  • Bigger battery: 8000 vs 6510 mAh
  • Lighter: 200g vs 226g

  • Better display (85/100 vs 84/100)
  • Better portability (60/100 vs 43/100)
What makes Vivo X300 Pro better?
  • Higher AnTuTu: 3269794 vs 877641
  • Better Geekbench Single: 3228 vs 1011
  • Better Geekbench Multi: 9553 vs 2813
  • Faster charging: 90W vs 80W
  • Better main camera: 200MP vs 50MP

  • Higher performance (93/100 vs 55/100)
  • Better camera (96/100 vs 60/100)
  • Longer battery life (81/100 vs 71/100)
Comparison verdict

Comparing the OPPO K15 vs the Vivo X300 Pro, the Vivo X300 Pro scores 24 points higher (87/100 vs 63/100). In the "performance" category, the Vivo X300 Pro leads (93/100 vs 55/100). In the "camera" category, the Vivo X300 Pro leads (96/100 vs 60/100). In the "battery" category, the Vivo X300 Pro leads (81/100 vs 71/100). In the "performance" category, the Vivo X300 Pro significantly outperforms the OPPO K15 (93/100 vs 55/100). In the "display" category, the OPPO K15 and the Vivo X300 Pro are nearly equal (85/100 vs 84/100). In the "camera" category, the Vivo X300 Pro significantly outperforms the OPPO K15 (96/100 vs 60/100). In the "battery" category, the Vivo X300 Pro is a bit better (81/100 vs 71/100). In the "portability" category, the OPPO K15 notably outperforms the Vivo X300 Pro (60/100 vs 43/100).

OPPO K15: The OPPO K15 is a better fit for everyday use.
Vivo X300 Pro: The Vivo X300 Pro is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.
Specs comparison
Specification OPPO K15 Vivo X300 Pro
Processor Dimensity 7360 Super Dimensity 9500
AnTuTu 877641 3269794
Geekbench Single 1011 3228
Geekbench Multi 2813 9553
Display 6.6" AMOLED 6.8" AMOLED
Resolution 1256x2760 1260x2800
Refresh rate 120 Hz 120 Hz
Battery 8000 mAh 6510 mAh
Charging 80W 90W
Wireless charging 0W 40W
DXOMark (camera) 171
Main camera 50 MP 200 MP
Ultrawide 50 MP 50 MP
Telephoto 0 MP 50 MP
Front camera 50 MP 32 MP
RAM 12GB 12GB / 16GB
Storage 256GB 256GB / 512GB / 1TB
OS Android 16 Android 16
Brightness (peak) 4500 nits
NFC yes yes
Protection IP68 IP68
Dimensions 161.2×75.5×8.0 mm
Weight 200 g 226 g
Launch price $899
Camera comparison
OPPO K15
  • Main: 50MP f/f/1.8
  • Ultrawide: 50MP
  • Front: 50MP
60
camera
Vivo X300 Pro
  • Main: 200MP f/f/1.57
  • Ultrawide: 50MP
  • Telephoto: 50MP
  • Front: 32MP
96
camera
Display comparison
OPPO K15
  • 6.6" AMOLED
  • Resolution: 1256x2760
  • Refresh rate: 120 Hz
85
display
Vivo X300 Pro
  • 6.8" AMOLED
  • Resolution: 1260x2800
  • Refresh rate: 120 Hz
84
display
Battery and charging
OPPO K15
  • 8000 mAh
  • Wired: 80W
  • No wireless charging
71
battery
Vivo X300 Pro
  • 6510 mAh
  • NanoReview test: web browsing 13:30 hrs, total 24:37 hrs
  • Wired: 90W
  • Wireless: 40W
81
battery
Overall performance score

We compared OPPO K15 and Vivo X300 Pro, covering their specs and all relevant benchmarks.

OPPO K15 Dimensity 7360 Super
63/100
877641 AnTuTu
Vivo X300 Pro Dimensity 9500
87/100 +73.2%
3269794 AnTuTu

Vivo X300 Pro leads OPPO K15 by 73.2% in our overall performance rating.

Benchmarks
Launch prices and where to check today's
OPPO K15
Price unknown
Vivo X300 Pro
$899
Detailed category analysis
performance

In the "performance" category, the Vivo X300 Pro significantly outperforms the OPPO K15 (93/100 vs 55/100).

display

In the "display" category, the OPPO K15 and the Vivo X300 Pro are nearly equal (85/100 vs 84/100).

camera

In the "camera" category, the Vivo X300 Pro significantly outperforms the OPPO K15 (96/100 vs 60/100).

battery

In the "battery" category, the Vivo X300 Pro is a bit better (81/100 vs 71/100).

portability

In the "portability" category, the OPPO K15 notably outperforms the Vivo X300 Pro (60/100 vs 43/100).

Frequently asked questions
Which is better: the OPPO K15 or the Vivo X300 Pro?

The Vivo X300 Pro significantly outperforms the OPPO K15 by 24 points (87/100 vs 63/100).

What is the rating of the OPPO K15 and the Vivo X300 Pro?

The OPPO K15 has a MobileRank rating of 63/100, the Vivo X300 Pro — 87/100.

Which has the better camera: the OPPO K15 or the Vivo X300 Pro?

The Vivo X300 Pro leads on camera score (96/100 vs 60/100).

Which is more powerful: the OPPO K15 or the Vivo X300 Pro?

The Vivo X300 Pro leads on performance (93/100 vs 55/100).

Should you choose the OPPO K15 over the Vivo X300 Pro?

The OPPO K15 is a better fit for everyday use. The Vivo X300 Pro is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.