Skip to content
InnoReviews

Redmi 15 5G vs REDMI K90 Ultra

Redmi 15 5G

Xiaomi

Redmi 15 5G

$199

45.4Inno Score
VS
WINNER
REDMI K90 Ultra
69.1Inno Score
26Performance64.4
70.3Display78.7
29Camera43.4
66.7Battery83.2
44Features86.7
2 spec wins — Redmi 15 5G9 spec wins — REDMI K90 Ultra

InnoReviews verdict

REDMI K90 Ultra wins this phone face-off, 69.1 to 45.4, pulling ahead mainly in features (+43) and performance (+38). Redmi 15 5G still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Redmi 15 5G

No decisive spec advantages — this side competes on price and preference.

Reasons to pick the REDMI K90 Ultra

  • Stronger performance score: 64 vs 26
  • Stronger display score: 79 vs 70
  • Stronger camera score: 43 vs 29
  • Stronger battery score: 83 vs 67
  • Stronger features score: 87 vs 44

Display

Display comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
Screen size6.9 ″+1%6.83 ″
Panel typeIPS LCDAMOLED
Resolution2340x10801280x2772
Pixel density374 ppi447 ppi+20%
Refresh rate144 Hz165 Hz+15%
Peak brightness—3,500 nits
Screen-to-body—90.3 %

Performance

Performance comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
ChipsetSnapdragon 6s Gen 3Snapdragon 8 Elite
AnTuTu460,000—
Geekbench 6 (single)920Bottom 23%—
Geekbench 6 (multi)2,050Bottom 21%—
RAM (max)8 GB16 GB+100%
Storage options128GB / 256GB256/512GB
Storage typeUFS 2.2UFS 4.1

Camera

Camera comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
Main camera50 MP50 MP
Main aperturef/1.8f/1.7
Ultra-wide—8 MP
Max video1080p@30fps8K@30fps
Front camera8 MP20 MP+150%
OISNoYes

Battery

Battery comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
Capacity7,000 mAh8,550 mAh+22%
Wired charging33 W100 W+203%

Design

Design comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
Weight217 g+4%227 g
Thickness8.4 mm8.2 mm+2%
IP ratingIP64IP68/IP69
Frame materialPlasticAluminum

Connectivity

Connectivity comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
5GYesYes
Wi-FiWi-Fi 5Wi-Fi 7
Bluetooth—5.4
NFCYesYes
USBUSB-C 2.0USB-C
eSIMNoNo

Software

Software comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
OS at launchAndroid 15 (HyperOS 2)Android 16 (HyperOS 3)
OS update pledge2 years—

Audio

Audio comparison: Redmi 15 5G versus REDMI K90 Ultra
SpecRedmi 15 5GREDMI K90 Ultra
Stereo speakersNoYes
3.5mm jack—No

Related comparisons

Redmi 15 5Gvs realme P1 Pro 5GVSRedmi 15 5Gvs OPPO Reno12 F 5GVSRedmi 15 5Gvs realme P3 5GVSRedmi 15 5Gvs Samsung Galaxy S21 FE 5GVSREDMI K90 Ultravs Huawei Mate 70 Pro+VSREDMI K90 Ultravs iQOO Neo 10VSREDMI K90 Ultravs REDMI K90 MaxVSREDMI K90 Ultravs Vivo X100 ProVS

Try another matchup