Oukitel C18 Pro Max vs Vivo iQOO 15

The Oukitel C18 Pro Max (2026) runs on the Unisoc T615, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 leads — 88/100 vs 34/100 (a 54-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 5000); the main camera is 64 MP vs 50 MP.

The Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max by 54 points (88/100 vs 34/100).

Profile comparison

Category scores

Oukitel C18 Pro Max

Performance 18
Display 55
Camera 37
Battery 43
Portability 47
Value for money —

Vivo iQOO 15

Performance 98
Display 99
Camera 78
Battery 85
Portability 48
Value for money 90

What makes Oukitel C18 Pro Max better?

  • Better main camera: 64MP vs 50MP
  • Lighter: 205g vs 215g

  • Overall rating 34/100

What makes Vivo iQOO 15 better?

  • Better Geekbench Single: 3639 vs 380
  • Better Geekbench Multi: 11047 vs 1300
  • Bigger battery: 7000 vs 5000 mAh
  • Faster charging: 100W vs 18W
  • Higher refresh rate: 144Hz vs 120Hz

  • Higher performance (98/100 vs 18/100)
  • Better camera (78/100 vs 37/100)
  • Longer battery life (85/100 vs 43/100)
  • Better display (99/100 vs 55/100)
  • Better portability (48/100 vs 47/100)

Comparison verdict

Comparing the Oukitel C18 Pro Max vs the Vivo iQOO 15, the Vivo iQOO 15 scores 54 points higher (88/100 vs 34/100). In the "performance" category, the Vivo iQOO 15 leads (98/100 vs 18/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 37/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 43/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (98/100 vs 18/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (78/100 vs 37/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (85/100 vs 43/100). In the "portability" category, the Vivo iQOO 15 and the Oukitel C18 Pro Max are nearly equal (48/100 vs 47/100).

Vivo iQOO 15: The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.

Specs comparison

Specification Oukitel C18 Pro Max Vivo iQOO 15
Processor Unisoc T615 Qualcomm Snapdragon 8 Elite Gen 5
AnTuTu — 3950082
Geekbench Single 380 3639
Geekbench Multi 1300 11047
Display 6.9" TFT LCD 6.8" LTPO AMOLED
Resolution 720x1560 1440x3168
Refresh rate 120 Hz 144 Hz
Battery 5000 mAh 7000 mAh
Charging 18W 100W
Wireless charging 0W 40W
Main camera 64 MP 50 MP
Ultrawide 0 MP 50 MP
Telephoto 0 MP 50 MP
Front camera 8 MP 32 MP
RAM 4GB / 6GB 12GB / 16GB
Storage 128GB / 256GB 256GB / 512GB / 1TB
OS Android 16 Android 16
Brightness (peak) — 6000 nits
NFC — yes
Protection — IP68
Dimensions 163.8×78.3×8.8 mm 163.7×76.8×8.1 mm
Weight 205 g 215 g
Launch price — $599

Camera comparison

Oukitel C18 Pro Max

  • Main: 64MP
  • Front: 8MP
37
camera

Vivo iQOO 15

  • Main: 50MP f/1.9
  • Ultrawide: 50MP
  • Telephoto: 50MP
  • Front: 32MP
78
camera

Display comparison

Oukitel C18 Pro Max

  • 6.9" TFT LCD
  • Resolution: 720x1560
  • Refresh rate: 120 Hz
55
display

Vivo iQOO 15

  • 6.8" LTPO AMOLED
  • Resolution: 1440x3168
  • Refresh rate: 144 Hz
99
display

Battery and charging

Oukitel C18 Pro Max

  • 5000 mAh
  • Wired: 18W
  • No wireless charging
43
battery

Vivo iQOO 15

  • 7000 mAh
  • NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
  • Wired: 100W
  • Wireless: 40W
85
battery

Benchmarks

Launch prices and where to check today's

Oukitel C18 Pro Max

Price unknown

Vivo iQOO 15

$599

Detailed category analysis

performance

In the "performance" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (98/100 vs 18/100).

display

In the "display" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (99/100 vs 55/100).

camera

In the "camera" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (78/100 vs 37/100).

battery

In the "battery" category, the Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max (85/100 vs 43/100).

portability

In the "portability" category, the Vivo iQOO 15 and the Oukitel C18 Pro Max are nearly equal (48/100 vs 47/100).

Frequently asked questions

Which is better: the Oukitel C18 Pro Max or the Vivo iQOO 15?

The Vivo iQOO 15 significantly outperforms the Oukitel C18 Pro Max by 54 points (88/100 vs 34/100).

What is the rating of the Oukitel C18 Pro Max and the Vivo iQOO 15?

The Oukitel C18 Pro Max has a MobileRank rating of 34/100, the Vivo iQOO 15 — 88/100.

Which has the better camera: the Oukitel C18 Pro Max or the Vivo iQOO 15?

The Vivo iQOO 15 leads on camera score (78/100 vs 37/100).

Which is more powerful: the Oukitel C18 Pro Max or the Vivo iQOO 15?

The Vivo iQOO 15 leads on performance (98/100 vs 18/100).

Should you choose the Oukitel C18 Pro Max over the Vivo iQOO 15?

The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.