Redmi K80 Ultra vs Vivo X100s

The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Vivo X100s (2024) runs on the MediaTek Dimensity 9300+; estimated prices are $350 and $699. By overall MobileRank rating, the Vivo X100s leads — 63/100 vs 60/100 (a 3-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 5100); the Redmi K80 Ultra is faster in AnTuTu (2,876,004 vs 2,351,914); the Vivo X100s is noticeably lighter (203g vs 219g).

The Vivo X100s edges out the Redmi K80 Ultra by just 3 points — the two devices are very close in overall level.
Profile comparison
Category scores
Redmi K80 Ultra
Performance 61
Display 100
Camera 32
Battery 72
Design 26
Value for money 86
Vivo X100s
Performance 46
Display 100
Camera 80
Battery 59
Design 46
Value for money 62
What makes Redmi K80 Ultra better?
  • Higher AnTuTu: 2876004 vs 2351914
  • Better Geekbench Single: 2729 vs 2250
  • Better Geekbench Multi: 8430 vs 7315
  • Bigger battery: 7410 vs 5100 mAh
  • Higher refresh rate: 144Hz vs 120Hz
  • Cheaper: $350 vs $699

  • Higher performance (61/100 vs 46/100)
  • Longer battery life (72/100 vs 59/100)
  • Better value for money (86/100 vs 62/100)
What makes Vivo X100s better?
  • Lighter: 203g vs 219g

  • Better camera (80/100 vs 32/100)
  • Better design/ergonomics (46/100 vs 26/100)
Comparison verdict

Comparing the Redmi K80 Ultra vs the Vivo X100s, the Vivo X100s scores 3 points higher (63/100 vs 60/100). In the "performance" category, the Redmi K80 Ultra leads (61/100 vs 46/100). In the "camera" category, the Vivo X100s leads (80/100 vs 32/100). In the "battery" category, the Redmi K80 Ultra leads (72/100 vs 59/100). In the "value for money" category, the Redmi K80 Ultra leads (86/100 vs 62/100). In the "performance" category, the Redmi K80 Ultra notably outperforms the Vivo X100s (61/100 vs 46/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo X100s significantly outperforms the Redmi K80 Ultra (80/100 vs 32/100). In the "battery" category, the Redmi K80 Ultra is a bit better (72/100 vs 59/100). In the "design" category, the Vivo X100s notably outperforms the Redmi K80 Ultra (46/100 vs 26/100). In the "value for money" category, the Redmi K80 Ultra notably outperforms the Vivo X100s (86/100 vs 62/100).

Redmi K80 Ultra: The Redmi K80 Ultra is a better fit for active users, budget-conscious buyers.
Vivo X100s: The Vivo X100s is a better fit for mobile photography enthusiasts.
Specs comparison
Specification Redmi K80 Ultra Vivo X100s
Processor MediaTek Dimensity 9400+ MediaTek Dimensity 9300+
AnTuTu 2876004 2351914
Geekbench Single 2729 2250
Geekbench Multi 8430 7315
Display 6.8" OLED 6.8" LTPO AMOLED
Resolution 1280x2772 1260x2800
Refresh rate 144 Hz 120 Hz
Battery 7410 mAh 5100 mAh
Charging 100W 100W
Main camera 50 MP 50 MP
Ultrawide 8 MP 50 MP
Telephoto 0 MP 64 MP
Front camera 20 MP 32 MP
RAM 12GB / 16GB 12GB / 16GB
Storage 256GB / 512GB / 1TB 256GB / 512GB / 1TB
OS Android 15 Android 14, OriginOS 4
Brightness (peak) 3200 nits 3000 nits
NFC yes yes
Protection IP68 IP68
Dimensions 163.1×75.8×7.8 mm
Weight 219 g 203 g
Price $350 $699
Camera comparison
Redmi K80 Ultra
  • Main: 50MP f/f/1.9
  • Ultrawide: 8MP
  • Front: 20MP
32
camera
Vivo X100s
  • Main: 50MP f/f/1.6
  • Ultrawide: 50MP
  • Telephoto: 64MP
  • Front: 32MP
80
camera
Display comparison
Redmi K80 Ultra
  • 6.8" OLED
  • Resolution: 1280x2772
  • Refresh rate: 144 Hz
100
display
Vivo X100s
  • 6.8" LTPO AMOLED
  • Resolution: 1260x2800
  • Refresh rate: 120 Hz
100
display
Battery and charging
Redmi K80 Ultra
  • 7410 mAh
  • Wired: 100W
  • No wireless charging
72
battery
Vivo X100s
  • 5100 mAh
  • Wired: 100W
  • No wireless charging
59
battery
Overall performance score

We compared Redmi K80 Ultra and Vivo X100s, covering their specs and all relevant benchmarks.

Redmi K80 Ultra MediaTek Dimensity 9400+
60/100
2876004 AnTuTu
Vivo X100s MediaTek Dimensity 9300+
63/100 -22.3%
2351914 AnTuTu

Redmi K80 Ultra leads Vivo X100s by 22.3% in our overall performance rating.

Benchmarks
Price and availability
Redmi K80 Ultra
$350
Vivo X100s
$699

Price difference: $349. Redmi K80 Ultra is cheaper by $349.

Detailed category analysis
performance

In the "performance" category, the Redmi K80 Ultra notably outperforms the Vivo X100s (61/100 vs 46/100).

display

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

camera

In the "camera" category, the Vivo X100s significantly outperforms the Redmi K80 Ultra (80/100 vs 32/100).

battery

In the "battery" category, the Redmi K80 Ultra is a bit better (72/100 vs 59/100).

design

In the "design" category, the Vivo X100s notably outperforms the Redmi K80 Ultra (46/100 vs 26/100).

value for money

In the "value for money" category, the Redmi K80 Ultra notably outperforms the Vivo X100s (86/100 vs 62/100).

Frequently asked questions
Which is better: the Redmi K80 Ultra or the Vivo X100s?

The Vivo X100s edges out the Redmi K80 Ultra by just 3 points — the two devices are very close in overall level.

What is the rating of the Redmi K80 Ultra and the Vivo X100s?

The Redmi K80 Ultra has a MobileRank rating of 60/100, the Vivo X100s — 63/100.

Which has the better camera: the Redmi K80 Ultra or the Vivo X100s?

The Vivo X100s leads on camera score (80/100 vs 32/100).

Which is more powerful: the Redmi K80 Ultra or the Vivo X100s?

The Redmi K80 Ultra leads on performance (61/100 vs 46/100).

Should you choose the Redmi K80 Ultra over the Vivo X100s?

The Redmi K80 Ultra is a better fit for active users, budget-conscious buyers. The Vivo X100s is a better fit for mobile photography enthusiasts.