Skip to content
vsMars
Head-to-head

Dell - Alienware m18 R2 vs ASUS - Vivobook S 14 OLED (2025)

Last updated · How Mars Score works
Alienware m18 R2DELLRENDER
Probe A
Dell
Alienware m18 R2
81.9/ 100A
Performance72· 35%
Battery & Ports93· 27%
Design· 20%
Display84· 18%
Vivobook S 14 OLED (2025)ASUSRENDER
Probe B
ASUS
Vivobook S 14 OLED (2025)
63.6/ 100C
Performance54· 35%
Battery & Ports76· 27%
Design· 20%
Display61· 18%
Quick verdict

Between the Alienware m18 R2 and Vivobook S 14 OLED (2025), the Alienware m18 R2 comes out ahead in cpu cores and ram, while the Vivobook S 14 OLED (2025) wins on claimed battery life and weight. Overall, the Alienware m18 R2 scores 81.9 and the Vivobook S 14 OLED (2025) scores 63.6 on our Mars Score.

Buying advice

Which should you buy?

The Alienware m18 R2 is the clear pick on raw spec strength, leading by 18.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Alienware m18 R2 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are cpu cores, ram, refresh rate, among others.

Pick the Vivobook S 14 OLED (2025) if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are claimed battery life, weight, panel type.

Both ship with comparable storage, backlit keyboard, so those specs don't separate the two — focus on the differences below.

Bottom line: the Alienware m18 R2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Dell - Alienware m18 R2 wins

  • CPU cores — 140.00% more. 24 vs 10.
  • RAM — 100.00% more. 32 GB vs 16 GB.
  • Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
  • Battery — 29.33% more. 97 Wh vs 75 Wh.
  • Screen size — 28.57% more. 18 " vs 14 ".
  • Thunderbolt ports — 1.00 more. 1 vs 0.

Why ASUS - Vivobook S 14 OLED (2025) wins

  • Claimed battery life — 166.67% more. 16 h vs 6 h.
  • Weight — 2.83 kg less. 1.3 vs 4.13.
  • Panel type: OLED (vs IPS).
Full readout

Spec comparison

Design

SpecDell - Alienware m18 R2ASUS - Vivobook S 14 OLED (2025)
Weight4.13 kg1.3 kglead
Thickness27.4 mm13.9 mmlead
Build materialmagnesium-aluminumaluminum
Backlit keyboardtruetrue
Fingerprint readerfalsetruelead

Display

SpecDell - Alienware m18 R2ASUS - Vivobook S 14 OLED (2025)
Screen size18 "lead14 "
Refresh rate165 Hzlead120 Hz
Panel typeIPSOLEDlead

Performance

SpecDell - Alienware m18 R2ASUS - Vivobook S 14 OLED (2025)
CPUIntel Core i9-14900HXAMD Ryzen AI 9 365
CPU cores24lead10
GPUNVIDIA GeForce RTX 4080 LaptopAMD Radeon 880M
RAM32 GBlead16 GB
Storage1024 GB1024 GB
Storage typeSSDSSD

Battery & Ports

SpecDell - Alienware m18 R2ASUS - Vivobook S 14 OLED (2025)
Battery97 Whlead75 Wh
Claimed battery life6 h16 hlead
USB-C ports22
Thunderbolt ports1lead0
HDMItruetrue
Reader questions

Frequently asked

Which has better battery life, Alienware m18 R2 or Vivobook S 14 OLED (2025)?+

Vivobook S 14 OLED (2025) claims up to 16 hours — 6h vs 16h.

Which is lighter, Alienware m18 R2 or Vivobook S 14 OLED (2025)?+

Vivobook S 14 OLED (2025) is lighter at 1.3 kg vs 4.13 kg.

Which has more RAM, Alienware m18 R2 or Vivobook S 14 OLED (2025)?+

Alienware m18 R2 offers 32GB of RAM.

Which has an OLED display, Alienware m18 R2 or Vivobook S 14 OLED (2025)?+

Vivobook S 14 OLED (2025) has an OLED display; Alienware m18 R2 uses IPS.

Drill down

Spec-level deep dives

By manufacturer

More from the same brands

vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.