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InnoReviews

Redmi K90 vs Xiaomi 18 Fold

Redmi K90

Xiaomi

Redmi K90
74.3Inno Score
VS
WINNER
Xiaomi 18 Fold
79.3Inno Score
84.3Performance91.6
65.4Display67
53.1Camera71.9
83.2Battery76.6
86.7Features86.7
6 spec wins — Redmi K906 spec wins — Xiaomi 18 Fold

InnoReviews verdict

Xiaomi 18 Fold wins this phone face-off, 79.3 to 74.3, pulling ahead mainly in camera (+19) and performance (+7). Redmi K90 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Redmi K90

  • Stronger battery score: 83 vs 77
  • 49% higher Wired charging: 100 W vs 67 W
  • 25% higher Front camera: 20 MP vs 16 MP
  • 25% lower thickness: 8 mm vs 10.7 mm
  • 18% higher capacity: 7,100 mAh vs 6,000 mAh

Reasons to pick the Xiaomi 18 Fold

  • Stronger performance score: 92 vs 84
  • Stronger camera score: 72 vs 53
  • 525% higher ultra-wide: 50 MP vs 8 MP
  • 300% higher Main camera: 200 MP vs 50 MP
  • 40% higher Optical zoom: 3.5 x vs 2.5 x

Display

Display comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
Screen size6.59 ″7.58 ″+15%
Panel typeAMOLEDFoldable LTPO AMOLED
Resolution2510x11562364x1672
Pixel density419 ppi+10%382 ppi
Refresh rate120 Hz120 Hz
Peak brightness3,500 nits4,000 nits+14%
Screen-to-body89.8 %90.6 %+1%

Performance

Performance comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
ChipsetSnapdragon 8 EliteXiaomi XRing O3
AnTuTuDifferent AnTuTu versions — not compared3,106,623Top 11%4,811,636
AnTuTu 11 (CPU)872,376Top 15%—
AnTuTu 11 (GPU)1,143,259Top 13%—
AnTuTu 11 (Memory)462,601Top 6%—
AnTuTu 11 (UX)628,387Top 13%—
Geekbench 6 (single)—3,448Top 7%
Geekbench 6 (multi)—12,758Top 1%
RAM (max)16 GB16 GB
Storage options256GB / 512GB / 1TB256/512GB/1TB
Storage typeUFSUFS 4.1

Camera

Camera comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
Main camera50 MP200 MP+300%
Main aperturef/1.88f/1.7
Ultra-wide8 MP50 MP+525%
Telephoto50 MP50 MP
Optical zoom2.5 x3.5 x+40%
Max video8K@30fps8K@24fps
Front camera20 MP+25%16 MP
OISYesYes

Battery

Battery comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
Capacity7,100 mAh+18%6,000 mAh
Wired charging100 W+49%67 W
Wireless charging—50 W

Design

Design comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
Weight206 g+6%219 g
Thickness8 mm+25%10.7 mm
IP ratingIP68IP58/IP59
Frame materialAluminumAluminum

Connectivity

Connectivity comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 7
Bluetooth5.46.0
NFCYesYes
USBUSB-CUSB-C 3.2
eSIMNoNo

Software

Software comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
OS at launchAndroid 16 (HyperOS 3)Android 17 (HyperOS 4)

Audio

Audio comparison: Redmi K90 versus Xiaomi 18 Fold
SpecRedmi K90Xiaomi 18 Fold
Stereo speakersYesYes
3.5mm jackNoNo

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