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InnoReviews

REDMI K90 Ultra vs Samsung Galaxy S25 Ultra

WINNER
REDMI K90 Ultra
75.4Inno Score
VS
Samsung Galaxy S25 Ultra
75.3Inno Score
85.5Performance81.7
78.7Display66.7
43.4Camera74
83.2Battery65.8
86.7Features94.7
10 spec wins — REDMI K90 Ultra7 spec wins — Samsung Galaxy S25 Ultra

InnoReviews verdict

This one is close to a dead heat: REDMI K90 Ultra scores 75.4 against 75.3 for Samsung Galaxy S25 Ultra. Pick by the categories that matter to you — REDMI K90 Ultra edges ahead in battery and display, or by price.

Which would you pick?

Key differences

Reasons to pick the REDMI K90 Ultra

  • Stronger performance score: 86 vs 82
  • Stronger display score: 79 vs 67
  • Stronger battery score: 83 vs 66
  • 122% higher Wired charging: 100 W vs 45 W
  • 71% higher capacity: 8,550 mAh vs 5,000 mAh

Reasons to pick the Samsung Galaxy S25 Ultra

  • Stronger camera score: 74 vs 43
  • Stronger features score: 95 vs 87
  • 525% higher ultra-wide: 50 MP vs 8 MP
  • 300% higher Main camera: 200 MP vs 50 MP
  • 11% higher Pixel density: 498 ppi vs 447 ppi

Display

Display comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
Screen size6.83 ″6.9 ″+1%
Panel typeAMOLEDDynamic LTPO AMOLED 2X
Resolution1280x27721440x3120
Pixel density447 ppi498 ppi+11%
Refresh rate165 Hz+38%120 Hz
Peak brightness3,500 nits+35%2,600 nits
Screen-to-body90.3 %92.5 %+2%

Performance

Performance comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
ChipsetSnapdragon 8 EliteSnapdragon 8 Elite for Galaxy
AnTuTu 113,280,140+18%Top 13%2,780,751Top 29%
AnTuTu 11 (CPU)957,967+7%Top 11%891,948Top 17%
AnTuTu 11 (GPU)1,169,697+19%Top 15%985,658Top 27%
AnTuTu 11 (Memory)471,580+36%Top 9%347,009Top 35%
AnTuTu 11 (UX)680,896+22%Top 16%556,136Top 32%
AnTuTu 12—3,034,642Top 27%
Geekbench 6 (single)—3,200Top 10%
Geekbench 6 (multi)—10,020Top 8%
RAM (max)16 GB16 GB
Storage options256/512GB256/512GB/1TB
Storage typeUFS 4.1UFS 4.0

Camera

Camera comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
Main camera50 MP200 MP+300%
Main aperturef/1.7f/1.7
Ultra-wide8 MP50 MP+525%
Telephoto—50 MP
Optical zoom—5 x
Max video8K@30fps8K@30fps
Front camera20 MP+67%12 MP
OISYesYes

Battery

Battery comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
Capacity8,550 mAh+71%5,000 mAh
Wired charging100 W+122%45 W
Wireless charging—15 W
Active use endurance—13 h

Design

Design comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
Weight227 g218 g+4%
Thickness8.2 mm8.2 mm
IP ratingIP68/IP69IP68
Frame materialAluminumTitanium

Connectivity

Connectivity comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 7
Bluetooth5.45.4
NFCYesYes
USBUSB-CUSB-C 3.2
eSIMNoYes

Software

Software comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
OS at launchAndroid 16 (HyperOS 3)Android 15 (One UI 7)
OS update pledge—7 years

Audio

Audio comparison: REDMI K90 Ultra versus Samsung Galaxy S25 Ultra
SpecREDMI K90 UltraSamsung Galaxy S25 Ultra
Stereo speakersYesYes
3.5mm jackNoNo

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