OPPO K15 vs Vivo Y77 (China)

The OPPO K15 (2026) runs on the Dimensity 7360 Super, while the Vivo Y77 (China) (2022) runs on the MediaTek Dimensity 930. By overall MobileRank rating, the OPPO K15 leads — 42/100 vs 29/100 (a 13-point difference). Key differences: the OPPO K15 has the bigger battery (8000 mAh vs 4500); the OPPO K15 has NFC for contactless payments, the Vivo Y77 (China) doesn't.

The OPPO K15 is noticeably better than the Vivo Y77 (China) — the overall rating gap is 13 points.
Profile comparison
Category scores
OPPO K15
Performance 2
Display 100
Camera 58
Battery 69
Design 50
Value for money 55
Vivo Y77 (China)
Performance 0
Display 100
Camera 24
Battery 39
Design 57
Value for money 55
What makes OPPO K15 better?
  • Bigger battery: 8000 vs 4500 mAh

  • Higher performance (2/100 vs 0/100)
  • Better camera (58/100 vs 24/100)
  • Longer battery life (69/100 vs 39/100)
What makes Vivo Y77 (China) better?
  • Lighter: 194g vs 200g

  • Better design/ergonomics (57/100 vs 50/100)
Comparison verdict

Comparing the OPPO K15 vs the Vivo Y77 (China), the OPPO K15 scores 13 points higher (42/100 vs 29/100). In the "camera" category, the OPPO K15 leads (58/100 vs 24/100). In the "battery" category, the OPPO K15 leads (69/100 vs 39/100). In the "performance" category, the OPPO K15 and the Vivo Y77 (China) are nearly equal (2/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the OPPO K15 significantly outperforms the Vivo Y77 (China) (58/100 vs 24/100). In the "battery" category, the OPPO K15 significantly outperforms the Vivo Y77 (China) (69/100 vs 39/100). In the "design" category, the Vivo Y77 (China) is a bit better (57/100 vs 50/100). In the "value for money" category, both devices are on the same level — 55/100.

OPPO K15: The OPPO K15 is a better fit for everyday use.
Vivo Y77 (China): The Vivo Y77 (China) is a better fit for everyday use.
Specs comparison
Specification OPPO K15 Vivo Y77 (China)
Processor Dimensity 7360 Super MediaTek Dimensity 930
AnTuTu 877641
Geekbench Single 1011
Geekbench Multi 2813
Display 6.6" AMOLED 6.6" IPS LCD
Resolution 1256x2760 1080x2388
Refresh rate 120 Hz 120 Hz
Battery 8000 mAh 4500 mAh
Charging 80W 80W
Main camera 50 MP 50 MP
Ultrawide 50 MP 0 MP
Front camera 50 MP 8 MP
RAM 12GB 6GB / 8GB / 12GB
Storage 256GB 128GB / 256GB
OS Android 16 Android 12, Origin OS Ocean
NFC yes no
Protection IP68
Dimensions 164.2×75.8×8.6 mm
Weight 200 g 194 g
Price
Camera comparison
OPPO K15
  • Main: 50MP f/f/1.8
  • Ultrawide: 50MP
  • Front: 50MP
58
camera
Vivo Y77 (China)
  • Main: 50MP f/f/1.8
  • Front: 8MP
24
camera
Display comparison
OPPO K15
  • 6.6" AMOLED
  • Resolution: 1256x2760
  • Refresh rate: 120 Hz
100
display
Vivo Y77 (China)
  • 6.6" IPS LCD
  • Resolution: 1080x2388
  • Refresh rate: 120 Hz
100
display
Battery and charging
OPPO K15
  • 8000 mAh
  • Wired: 80W
  • No wireless charging
69
battery
Vivo Y77 (China)
  • 4500 mAh
  • Wired: 80W
  • No wireless charging
39
battery
Benchmarks
Detailed category analysis
performance

In the "performance" category, the OPPO K15 and the Vivo Y77 (China) are nearly equal (2/100 vs 0/100).

display

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

camera

In the "camera" category, the OPPO K15 significantly outperforms the Vivo Y77 (China) (58/100 vs 24/100).

battery

In the "battery" category, the OPPO K15 significantly outperforms the Vivo Y77 (China) (69/100 vs 39/100).

design

In the "design" category, the Vivo Y77 (China) is a bit better (57/100 vs 50/100).

value for money

In the "value for money" category, both devices are on the same level — 55/100.

Frequently asked questions
Which is better: the OPPO K15 or the Vivo Y77 (China)?

The OPPO K15 is noticeably better than the Vivo Y77 (China) — the overall rating gap is 13 points.

What is the rating of the OPPO K15 and the Vivo Y77 (China)?

The OPPO K15 has a MobileRank rating of 42/100, the Vivo Y77 (China) — 29/100.

Which has the better camera: the OPPO K15 or the Vivo Y77 (China)?

The OPPO K15 leads on camera score (58/100 vs 24/100).

Should you choose the OPPO K15 over the Vivo Y77 (China)?

The OPPO K15 is a better fit for everyday use. The Vivo Y77 (China) is a better fit for everyday use.