Redmi K90 Ultra vs Samsung Galaxy S26

The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy S26 (2026) runs on the Samsung Exynos 2600; launch prices were $420 and $799. By overall MobileRank rating, the Samsung Galaxy S26 leads — 74/100 vs 73/100 (a 1-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,827,538); the Samsung Galaxy S26 is noticeably lighter (162g vs 227g).

The Samsung Galaxy S26 edges out the Redmi K90 Ultra by just 1 points — the two devices are very close in overall level.

Profile comparison

Category scores

Redmi K90 Ultra

Performance 92
Display 94
Camera 37
Battery 78
Portability 40
Value for money 72

Samsung Galaxy S26

Performance 89
Display 81
Camera 77
Battery 31
Portability 89
Value for money 62

What makes Redmi K90 Ultra better?

  • Higher AnTuTu: 3233695 vs 2827538
  • Better Geekbench Single: 3013 vs 2880
  • Better Geekbench Multi: 9287 vs 9100
  • Bigger battery: 8550 vs 4000 mAh
  • Faster charging: 100W vs 25W
  • Higher refresh rate: 165Hz vs 120Hz
  • Cheaper at launch: $420 vs $799

  • Higher performance (92/100 vs 89/100)
  • Longer battery life (78/100 vs 31/100)
  • Better display (94/100 vs 81/100)

What makes Samsung Galaxy S26 better?

  • Lighter: 162g vs 227g

  • Better camera (77/100 vs 37/100)
  • Better portability (89/100 vs 40/100)

Comparison verdict

Comparing the Redmi K90 Ultra vs the Samsung Galaxy S26, the Samsung Galaxy S26 scores 1 points higher (74/100 vs 73/100). In the "camera" category, the Samsung Galaxy S26 leads (77/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 31/100). Value score: Redmi K90 Ultra — 72/100, Samsung Galaxy S26 — 62/100; 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 Ultra and the Samsung Galaxy S26 are nearly equal (92/100 vs 89/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 81/100). In the "camera" category, the Samsung Galaxy S26 significantly outperforms the Redmi K90 Ultra (77/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S26 (78/100 vs 31/100). In the "portability" category, the Samsung Galaxy S26 significantly outperforms the Redmi K90 Ultra (89/100 vs 40/100).

Redmi K90 Ultra: The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.
Samsung Galaxy S26: The Samsung Galaxy S26 is a better fit for gamers and power users.

Specs comparison

Specification Redmi K90 Ultra Samsung Galaxy S26
Processor Qualcomm Snapdragon 8 Elite Samsung Exynos 2600
AnTuTu 3233695 2827538
Geekbench Single 3013 2880
Geekbench Multi 9287 9100
Display 6.8" AMOLED 6.2" Dynamic AMOLED 2X
Resolution 1280x2772 2340x1080
Refresh rate 165 Hz 120 Hz
Battery 8550 mAh 4000 mAh
Charging 100W 25W
Wireless charging 0W 15W
DXOMark (camera) — 146
Main camera 50 MP 50 MP
Ultrawide 8 MP 12 MP
Telephoto 0 MP 10 MP
Front camera 20 MP 12 MP
RAM 12GB / 16GB 12GB
Storage 256GB / 512GB 128GB / 256GB / 512GB
OS Android 16 Android 16 / One UI 8.5
Brightness (peak) 3500 nits 2600 nits
NFC yes yes
Protection IP68/IP69 IP68
Dimensions 162.9×77.9×8.2 mm 158.4×75.8×7.3 mm
Weight 227 g 162 g
Launch price $420 $799

Camera comparison

Redmi K90 Ultra

  • Main: 50MP f/1.7
  • Ultrawide: 8MP
  • Front: 20MP
37
camera

Samsung Galaxy S26

  • Main: 50MP f/1.8
  • Ultrawide: 12MP
  • Telephoto: 10MP
  • Front: 12MP
77
camera

Display comparison

Redmi K90 Ultra

  • 6.8" AMOLED
  • Resolution: 1280x2772
  • Refresh rate: 165 Hz
94
display

Samsung Galaxy S26

  • 6.2" Dynamic AMOLED 2X
  • Resolution: 2340x1080
  • Refresh rate: 120 Hz
81
display

Battery and charging

Redmi K90 Ultra

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

Samsung Galaxy S26

  • 4000 mAh
  • Wired: 25W
  • Wireless: 15W
31
battery

Overall performance score

We compared Redmi K90 Ultra and Samsung Galaxy S26, covering their specs and all relevant benchmarks.

Redmi K90 Ultra Qualcomm Snapdragon 8 Elite
73/100
3233695 AnTuTu
Samsung Galaxy S26 Samsung Exynos 2600
74/100 -14.4%
2827538 AnTuTu

Redmi K90 Ultra leads Samsung Galaxy S26 by 14.4% in our overall performance rating.

Benchmarks

Launch prices and where to check today's

Redmi K90 Ultra

$420

Samsung Galaxy S26

$799

Launch price difference: $379. Redmi K90 Ultra was $379 cheaper at launch.

Detailed category analysis

performance

In the "performance" category, the Redmi K90 Ultra and the Samsung Galaxy S26 are nearly equal (92/100 vs 89/100).

display

In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 81/100).

camera

In the "camera" category, the Samsung Galaxy S26 significantly outperforms the Redmi K90 Ultra (77/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S26 (78/100 vs 31/100).

portability

In the "portability" category, the Samsung Galaxy S26 significantly outperforms the Redmi K90 Ultra (89/100 vs 40/100).

Frequently asked questions

Which is better: the Redmi K90 Ultra or the Samsung Galaxy S26?

The Samsung Galaxy S26 edges out the Redmi K90 Ultra by just 1 points — the two devices are very close in overall level.

What is the rating of the Redmi K90 Ultra and the Samsung Galaxy S26?

The Redmi K90 Ultra has a MobileRank rating of 73/100, the Samsung Galaxy S26 — 74/100.

Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy S26?

The Samsung Galaxy S26 leads on camera score (77/100 vs 37/100).

Should you choose the Redmi K90 Ultra over the Samsung Galaxy S26?

The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy S26 is a better fit for gamers and power users.