Redmi K90 Max vs Vivo S50

The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Vivo S50 (2025) runs on the Qualcomm Snapdragon 8s Gen 3; launch prices were $504 and $390. By overall MobileRank rating, the Redmi K90 Max leads — 75/100 vs 72/100 (a 3-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 6500); the Redmi K90 Max is faster in AnTuTu (3,760,662 vs 1,794,400); the Vivo S50 is noticeably lighter (196g vs 227g).

The Redmi K90 Max edges out the Vivo S50 by just 3 points — the two devices are very close in overall level.

Profile comparison

Category scores

Redmi K90 Max

Performance 96
Display 94
Camera 37
Battery 78
Portability 41
Value for money 72

Vivo S50

Performance 75
Display 85
Camera 64
Battery 68
Portability 66
Value for money 74

What makes Redmi K90 Max better?

  • Higher AnTuTu: 3760662 vs 1794400
  • Better Geekbench Single: 3293 vs 1923
  • Better Geekbench Multi: 10243 vs 5179
  • Bigger battery: 8550 vs 6500 mAh
  • Faster charging: 100W vs 90W
  • Higher refresh rate: 165Hz vs 120Hz

  • Higher performance (96/100 vs 75/100)
  • Longer battery life (78/100 vs 68/100)
  • Better display (94/100 vs 85/100)

What makes Vivo S50 better?

  • Lighter: 196g vs 227g
  • Cheaper at launch: $390 vs $504

  • Better camera (64/100 vs 37/100)
  • Better portability (66/100 vs 41/100)

Comparison verdict

Comparing the Redmi K90 Max vs the Vivo S50, the Redmi K90 Max scores 3 points higher (75/100 vs 72/100). In the "performance" category, the Redmi K90 Max leads (96/100 vs 75/100). In the "camera" category, the Vivo S50 leads (64/100 vs 37/100). In the "battery" category, the Redmi K90 Max leads (78/100 vs 68/100). Value score: Redmi K90 Max — 72/100, Vivo S50 — 74/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Max notably outperforms the Vivo S50 (96/100 vs 75/100). In the "display" category, the Redmi K90 Max is a bit better (94/100 vs 85/100). In the "camera" category, the Vivo S50 notably outperforms the Redmi K90 Max (64/100 vs 37/100). In the "battery" category, the Redmi K90 Max is a bit better (78/100 vs 68/100). In the "portability" category, the Vivo S50 notably outperforms the Redmi K90 Max (66/100 vs 41/100).

Redmi K90 Max: The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life.
Vivo S50: The Vivo S50 is a better fit for active users.

Specs comparison

Specification Redmi K90 Max Vivo S50
Processor MediaTek Dimensity 9500 Qualcomm Snapdragon 8s Gen 3
AnTuTu 3760662 1794400
Geekbench Single 3293 1923
Geekbench Multi 10243 5179
Display 6.8" AMOLED 6.6" AMOLED
Resolution 2772x1280 1260x2750
Refresh rate 165 Hz 120 Hz
Battery 8550 mAh 6500 mAh
Charging 100W 90W
Main camera 50 MP 50 MP
Ultrawide 8 MP 8 MP
Telephoto 0 MP 50 MP
Front camera 20 MP 50 MP
RAM 12GB / 16GB 12GB / 16GB
Storage 256GB / 512GB / 1TB 256GB / 512GB
OS Android 16 Android 16
Brightness (peak) 3500 nits —
NFC yes yes
Protection IP66 IP68/IP69
Dimensions 162.9×77.9×8.1 mm 157.5×74.3×7.6 mm
Weight 227 g 196 g
Launch price $504 $390

Camera comparison

Redmi K90 Max

  • Main: 50MP f/1.68
  • Ultrawide: 8MP
  • Front: 20MP
37
camera

Vivo S50

  • Main: 50MP f/1.9
  • Ultrawide: 8MP
  • Telephoto: 50MP
  • Front: 50MP
64
camera

Display comparison

Redmi K90 Max

  • 6.8" AMOLED
  • Resolution: 2772x1280
  • Refresh rate: 165 Hz
94
display

Vivo S50

  • 6.6" AMOLED
  • Resolution: 1260x2750
  • Refresh rate: 120 Hz
85
display

Battery and charging

Redmi K90 Max

  • 8550 mAh
  • Wired: 100W
  • No wireless charging
78
battery

Vivo S50

  • 6500 mAh
  • Wired: 90W
  • No wireless charging
68
battery

Overall performance score

We compared Redmi K90 Max and Vivo S50, covering their specs and all relevant benchmarks.

Redmi K90 Max MediaTek Dimensity 9500
75/100
3760662 AnTuTu
Vivo S50 Qualcomm Snapdragon 8s Gen 3
72/100 -109.6%
1794400 AnTuTu

Redmi K90 Max leads Vivo S50 by 109.6% in our overall performance rating.

Benchmarks

Launch prices and where to check today's

Redmi K90 Max

$504

Vivo S50

$390

Launch price difference: $114. Vivo S50 was $114 cheaper at launch.

Detailed category analysis

performance

In the "performance" category, the Redmi K90 Max notably outperforms the Vivo S50 (96/100 vs 75/100).

display

In the "display" category, the Redmi K90 Max is a bit better (94/100 vs 85/100).

camera

In the "camera" category, the Vivo S50 notably outperforms the Redmi K90 Max (64/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Max is a bit better (78/100 vs 68/100).

portability

In the "portability" category, the Vivo S50 notably outperforms the Redmi K90 Max (66/100 vs 41/100).

Frequently asked questions

Which is better: the Redmi K90 Max or the Vivo S50?

The Redmi K90 Max edges out the Vivo S50 by just 3 points — the two devices are very close in overall level.

What is the rating of the Redmi K90 Max and the Vivo S50?

The Redmi K90 Max has a MobileRank rating of 75/100, the Vivo S50 — 72/100.

Which has the better camera: the Redmi K90 Max or the Vivo S50?

The Vivo S50 leads on camera score (64/100 vs 37/100).

Which is more powerful: the Redmi K90 Max or the Vivo S50?

The Redmi K90 Max leads on performance (96/100 vs 75/100).

Should you choose the Redmi K90 Max over the Vivo S50?

The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life. The Vivo S50 is a better fit for active users.