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InnoReviews

Redmi A3 vs REDMI K90 Ultra

Redmi A3

Xiaomi

Redmi A3

$89

26.8Inno Score
VS
WINNER
REDMI K90 Ultra
69.1Inno Score
20Performance64.4
35.2Display78.7
20Camera43.4
38.8Battery83.2
20Features86.7
2 spec wins — Redmi A313 spec wins — REDMI K90 Ultra

InnoReviews verdict

REDMI K90 Ultra wins this phone face-off, 69.1 to 26.8, pulling ahead mainly in features (+67) and performance (+44). Redmi A3 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Redmi A3

  • 15% lower weight: 193 g vs 227 g
  • Has 3.5mm jack — the other doesn't

Reasons to pick the REDMI K90 Ultra

  • Stronger performance score: 64 vs 20
  • Stronger display score: 79 vs 35
  • Stronger camera score: 43 vs 20
  • Stronger battery score: 83 vs 39
  • Stronger features score: 87 vs 20

Display

Display comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
Screen size6.71 ″6.83 ″+2%
Panel typeIPS LCDAMOLED
Resolution1650x7201280x2772
Pixel density268 ppi447 ppi+67%
Refresh rate90 Hz165 Hz+83%
Peak brightness—3,500 nits
Screen-to-body—90.3 %

Performance

Performance comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
ChipsetMediaTek Helio G36Snapdragon 8 Elite
AnTuTu110,000—
RAM (max)3 GB16 GB+433%
Storage options64GB / 128GB256/512GB
Storage typeeMMC 5.1UFS 4.1

Camera

Camera comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
Main camera8 MP50 MP+525%
Main aperturef/2.0f/1.7
Ultra-wide—8 MP
Max video1080p@30fps8K@30fps
Front camera5 MP20 MP+300%
OISNoYes

Battery

Battery comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
Capacity5,000 mAh8,550 mAh+71%
Wired charging10 W100 W+900%

Design

Design comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
Weight193 g+15%227 g
Thickness8.3 mm8.2 mm+1%
IP rating—IP68/IP69
Frame materialPlasticAluminum

Connectivity

Connectivity comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
5GNoYes
Wi-FiWi-Fi 5Wi-Fi 7
Bluetooth5.35.4
NFCNoYes
USBUSB-C 2.0USB-C
eSIMNoNo

Software

Software comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
OS at launchAndroid 14Android 16 (HyperOS 3)
OS update pledge2 years—

Audio

Audio comparison: Redmi A3 versus REDMI K90 Ultra
SpecRedmi A3REDMI K90 Ultra
Stereo speakersNoYes
3.5mm jackYesNo

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