OPPO K15 vs Vivo iQOO Z7

The OPPO K15 (2026) runs on the Dimensity 7360 Super, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the OPPO K15 leads — 42/100 vs 26/100 (a 16-point difference). Key differences: the OPPO K15 has the bigger battery (8000 mAh vs 4500); the main camera is 50 MP vs 64 MP; the OPPO K15 has NFC for contactless payments, the Vivo iQOO Z7 doesn't; the Vivo iQOO Z7 is noticeably lighter (173g vs 200g).

The OPPO K15 is noticeably better than the Vivo iQOO Z7 — the overall rating gap is 16 points.
Profile comparison
Category scores
OPPO K15
Performance 2
Display 100
Camera 58
Battery 69
Design 50
Value for money 55
Vivo iQOO Z7
Performance 0
Display 50
Camera 37
Battery 30
Design 83
Value for money 55
What makes OPPO K15 better?
  • Bigger battery: 8000 vs 4500 mAh
  • Faster charging: 80W vs 44W
  • Higher refresh rate: 120Hz vs 90Hz

  • Higher performance (2/100 vs 0/100)
  • Better camera (58/100 vs 37/100)
  • Longer battery life (69/100 vs 30/100)
  • Better display (100/100 vs 50/100)
What makes Vivo iQOO Z7 better?
  • Better main camera: 64MP vs 50MP
  • Lighter: 173g vs 200g

  • Better design/ergonomics (83/100 vs 50/100)
Comparison verdict

Comparing the OPPO K15 vs the Vivo iQOO Z7, the OPPO K15 scores 16 points higher (42/100 vs 26/100). In the "camera" category, the OPPO K15 leads (58/100 vs 37/100). In the "battery" category, the OPPO K15 leads (69/100 vs 30/100). In the "performance" category, the OPPO K15 and the Vivo iQOO Z7 are nearly equal (2/100 vs 0/100). In the "display" category, the OPPO K15 significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100). In the "camera" category, the OPPO K15 notably outperforms the Vivo iQOO Z7 (58/100 vs 37/100). In the "battery" category, the OPPO K15 significantly outperforms the Vivo iQOO Z7 (69/100 vs 30/100). In the "design" category, the Vivo iQOO Z7 significantly outperforms the OPPO K15 (83/100 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 iQOO Z7: The Vivo iQOO Z7 is a better fit for everyday use.
Specs comparison
Specification OPPO K15 Vivo iQOO Z7
Processor Dimensity 7360 Super MediaTek Dimensity 920
AnTuTu 877641
Geekbench Single 1011
Geekbench Multi 2813
Display 6.6" AMOLED 6.4" AMOLED
Resolution 1256x2760 1080x2400
Refresh rate 120 Hz 90 Hz
Battery 8000 mAh 4500 mAh
Charging 80W 44W
Main camera 50 MP 64 MP
Ultrawide 50 MP 0 MP
Front camera 50 MP 16 MP
RAM 12GB 6GB / 8GB
Storage 256GB 128GB
OS Android 16 Android 13, Funtouch 13
Brightness (peak) 1300 nits
NFC yes no
Protection IP68 IP54
Dimensions 158.9×73.5×7.8 mm
Weight 200 g 173 g
Price
Camera comparison
OPPO K15
  • Main: 50MP f/f/1.8
  • Ultrawide: 50MP
  • Front: 50MP
58
camera
Vivo iQOO Z7
  • Main: 64MP
  • Front: 16MP
37
camera
Display comparison
OPPO K15
  • 6.6" AMOLED
  • Resolution: 1256x2760
  • Refresh rate: 120 Hz
100
display
Vivo iQOO Z7
  • 6.4" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 90 Hz
50
display
Battery and charging
OPPO K15
  • 8000 mAh
  • Wired: 80W
  • No wireless charging
69
battery
Vivo iQOO Z7
  • 4500 mAh
  • Wired: 44W
  • No wireless charging
30
battery
Benchmarks
Detailed category analysis
performance

In the "performance" category, the OPPO K15 and the Vivo iQOO Z7 are nearly equal (2/100 vs 0/100).

display

In the "display" category, the OPPO K15 significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100).

camera

In the "camera" category, the OPPO K15 notably outperforms the Vivo iQOO Z7 (58/100 vs 37/100).

battery

In the "battery" category, the OPPO K15 significantly outperforms the Vivo iQOO Z7 (69/100 vs 30/100).

design

In the "design" category, the Vivo iQOO Z7 significantly outperforms the OPPO K15 (83/100 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 iQOO Z7?

The OPPO K15 is noticeably better than the Vivo iQOO Z7 — the overall rating gap is 16 points.

What is the rating of the OPPO K15 and the Vivo iQOO Z7?

The OPPO K15 has a MobileRank rating of 42/100, the Vivo iQOO Z7 — 26/100.

Which has the better camera: the OPPO K15 or the Vivo iQOO Z7?

The OPPO K15 leads on camera score (58/100 vs 37/100).

Should you choose the OPPO K15 over the Vivo iQOO Z7?

The OPPO K15 is a better fit for everyday use. The Vivo iQOO Z7 is a better fit for everyday use.