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; estimated prices are $504 and $390. By overall MobileRank rating, the Redmi K90 Max leads — 67/100 vs 55/100 (a 12-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 6500); the Redmi K90 Max is faster in AnTuTu (3,803,420 vs 1,801,694); the Vivo S50 is noticeably lighter (196g vs 227g).

The Redmi K90 Max is noticeably better than the Vivo S50 — the overall rating gap is 12 points.
Profile comparison
Category scores
Redmi K90 Max
Performance 82
Display 100
Camera 32
Battery 77
Design 16
Value for money 75
Vivo S50
Performance 29
Display 100
Camera 62
Battery 65
Design 55
Value for money 83
What makes Redmi K90 Max better?
  • Higher AnTuTu: 3803420 vs 1801694
  • Better Geekbench Single: 3228 vs 1930
  • Better Geekbench Multi: 9553 vs 4817
  • Bigger battery: 8550 vs 6500 mAh
  • Faster charging: 100W vs 90W
  • Higher refresh rate: 165Hz vs 120Hz

  • Higher performance (82/100 vs 29/100)
  • Longer battery life (77/100 vs 65/100)
What makes Vivo S50 better?
  • Lighter: 196g vs 227g
  • Cheaper: $390 vs $504

  • Better camera (62/100 vs 32/100)
  • Better design/ergonomics (55/100 vs 16/100)
  • Better value for money (83/100 vs 75/100)
Comparison verdict

Comparing the Redmi K90 Max vs the Vivo S50, the Redmi K90 Max scores 12 points higher (67/100 vs 55/100). In the "performance" category, the Redmi K90 Max leads (82/100 vs 29/100). In the "camera" category, the Vivo S50 leads (62/100 vs 32/100). In the "battery" category, the Redmi K90 Max leads (77/100 vs 65/100). In the "performance" category, the Redmi K90 Max significantly outperforms the Vivo S50 (82/100 vs 29/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo S50 significantly outperforms the Redmi K90 Max (62/100 vs 32/100). In the "battery" category, the Redmi K90 Max is a bit better (77/100 vs 65/100). In the "design" category, the Vivo S50 significantly outperforms the Redmi K90 Max (55/100 vs 16/100). In the "value for money" category, the Vivo S50 is a bit better (83/100 vs 75/100).

Redmi K90 Max: The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.
Vivo S50: The Vivo S50 is a better fit for budget-conscious buyers.
Specs comparison
Specification Redmi K90 Max Vivo S50
Processor MediaTek Dimensity 9500 Qualcomm Snapdragon 8s Gen 3
AnTuTu 3803420 1801694
Geekbench Single 3228 1930
Geekbench Multi 9553 4817
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
Price $504 $390
Camera comparison
Redmi K90 Max
  • Main: 50MP f/f/1.68
  • Ultrawide: 8MP
  • Front: 20MP
32
camera
Vivo S50
  • Main: 50MP f/f/1.9
  • Ultrawide: 8MP
  • Telephoto: 50MP
  • Front: 50MP
62
camera
Display comparison
Redmi K90 Max
  • 6.8" AMOLED
  • Resolution: 2772x1280
  • Refresh rate: 165 Hz
100
display
Vivo S50
  • 6.6" AMOLED
  • Resolution: 1260x2750
  • Refresh rate: 120 Hz
100
display
Battery and charging
Redmi K90 Max
  • 8550 mAh
  • Wired: 100W
  • No wireless charging
77
battery
Vivo S50
  • 6500 mAh
  • Wired: 90W
  • No wireless charging
65
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
67/100
3803420 AnTuTu
Vivo S50 Qualcomm Snapdragon 8s Gen 3
55/100 -111.1%
1801694 AnTuTu

Redmi K90 Max leads Vivo S50 by 111.1% in our overall performance rating.

Benchmarks
Price and availability
Redmi K90 Max
$504
Vivo S50
$390

Price difference: $114. Vivo S50 is cheaper by $114.

Detailed category analysis
performance

In the "performance" category, the Redmi K90 Max significantly outperforms the Vivo S50 (82/100 vs 29/100).

display

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

camera

In the "camera" category, the Vivo S50 significantly outperforms the Redmi K90 Max (62/100 vs 32/100).

battery

In the "battery" category, the Redmi K90 Max is a bit better (77/100 vs 65/100).

design

In the "design" category, the Vivo S50 significantly outperforms the Redmi K90 Max (55/100 vs 16/100).

value for money

In the "value for money" category, the Vivo S50 is a bit better (83/100 vs 75/100).

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

The Redmi K90 Max is noticeably better than the Vivo S50 — the overall rating gap is 12 points.

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

The Redmi K90 Max has a MobileRank rating of 67/100, the Vivo S50 — 55/100.

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

The Vivo S50 leads on camera score (62/100 vs 32/100).

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

The Redmi K90 Max leads on performance (82/100 vs 29/100).

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, budget-conscious buyers. The Vivo S50 is a better fit for budget-conscious buyers.