Redmi K90 Ultra vs Samsung Galaxy Z TriFold

The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy Z TriFold (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $420 and $2899. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 69/100 (a 4-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5600); the main camera is 50 MP vs 200 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,926,532); the Redmi K90 Ultra is noticeably lighter (227g vs 309g).

The Redmi K90 Ultra edges out the Samsung Galaxy Z TriFold by just 4 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 Z TriFold

Performance 90
Display 70
Camera 52
Battery 63
Portability 20
Value for money 46

What makes Redmi K90 Ultra better?

  • Higher AnTuTu: 3233695 vs 2926532
  • Bigger battery: 8550 vs 5600 mAh
  • Faster charging: 100W vs 45W
  • Higher refresh rate: 165Hz vs 120Hz
  • Lighter: 227g vs 309g
  • Cheaper at launch: $420 vs $2899

  • Higher performance (92/100 vs 90/100)
  • Longer battery life (78/100 vs 63/100)
  • Better display (94/100 vs 70/100)
  • Better portability (40/100 vs 20/100)

What makes Samsung Galaxy Z TriFold better?

  • Better main camera: 200MP vs 50MP

  • Better camera (52/100 vs 37/100)

Comparison verdict

Comparing the Redmi K90 Ultra vs the Samsung Galaxy Z TriFold, the Redmi K90 Ultra scores 4 points higher (73/100 vs 69/100). In the "camera" category, the Samsung Galaxy Z TriFold leads (52/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 63/100). Value score: Redmi K90 Ultra — 72/100, Samsung Galaxy Z TriFold — 46/100; 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 Z TriFold are nearly equal (92/100 vs 90/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (94/100 vs 70/100). In the "camera" category, the Samsung Galaxy Z TriFold notably outperforms the Redmi K90 Ultra (52/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (78/100 vs 63/100). In the "portability" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (40/100 vs 20/100).

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

Specs comparison

Specification Redmi K90 Ultra Samsung Galaxy Z TriFold
Processor Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Elite
AnTuTu 3233695 2926532
Geekbench Single 3013 3013
Geekbench Multi 9287 9287
Display 6.8" AMOLED 10.0" Dynamic AMOLED 2X
Resolution 1280x2772 2160x1584
Refresh rate 165 Hz 120 Hz
Battery 8550 mAh 5600 mAh
Charging 100W 45W
Wireless charging 0W 15W
Main camera 50 MP 200 MP
Ultrawide 8 MP 12 MP
Telephoto 0 MP 10 MP
Front camera 20 MP 10 MP
RAM 12GB / 16GB 16GB
Storage 256GB / 512GB 512GB
OS Android 16 Android 16 / One UI 8
Brightness (peak) 3500 nits 2600 nits
NFC yes yes
Protection IP68/IP69 IP48
Dimensions 162.9×77.9×8.2 mm 159.2×75.0×12.9 mm
Weight 227 g 309 g
Launch price $420 $2899

Camera comparison

Redmi K90 Ultra

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

Samsung Galaxy Z TriFold

  • Main: 200MP f/1.7
  • Ultrawide: 12MP
  • Telephoto: 10MP
  • Front: 10MP
52
camera

Display comparison

Redmi K90 Ultra

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

Samsung Galaxy Z TriFold

  • 10.0" Dynamic AMOLED 2X
  • Resolution: 2160x1584
  • Refresh rate: 120 Hz
70
display

Battery and charging

Redmi K90 Ultra

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

Samsung Galaxy Z TriFold

  • 5600 mAh
  • Wired: 45W
  • Wireless: 15W
63
battery

Overall performance score

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

Redmi K90 Ultra Qualcomm Snapdragon 8 Elite
73/100
3233695 AnTuTu
Samsung Galaxy Z TriFold Qualcomm Snapdragon 8 Elite
69/100 -10.5%
2926532 AnTuTu

Redmi K90 Ultra leads Samsung Galaxy Z TriFold by 10.5% in our overall performance rating.

Benchmarks

Launch prices and where to check today's

Redmi K90 Ultra

$420

Samsung Galaxy Z TriFold

$2899

Launch price difference: $2479. Redmi K90 Ultra was $2479 cheaper at launch.

Detailed category analysis

performance

In the "performance" category, the Redmi K90 Ultra and the Samsung Galaxy Z TriFold are nearly equal (92/100 vs 90/100).

display

In the "display" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (94/100 vs 70/100).

camera

In the "camera" category, the Samsung Galaxy Z TriFold notably outperforms the Redmi K90 Ultra (52/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (78/100 vs 63/100).

portability

In the "portability" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (40/100 vs 20/100).

Frequently asked questions

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

The Redmi K90 Ultra edges out the Samsung Galaxy Z TriFold by just 4 points — the two devices are very close in overall level.

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

The Redmi K90 Ultra has a MobileRank rating of 73/100, the Samsung Galaxy Z TriFold — 69/100.

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

The Samsung Galaxy Z TriFold leads on camera score (52/100 vs 37/100).

Should you choose the Redmi K90 Ultra over the Samsung Galaxy Z TriFold?

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