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InnoReviews

OPPO A78 5G vs REDMI K90 Max

OPPO A78 5G

OPPO

OPPO A78 5G

$249

35.4Inno Score
VS
WINNER
REDMI K90 Max
69.2Inno Score
23.2Performance64.4
35.2Display79.4
29Camera43.4
47.8Battery83.2
60Features86.7
2 spec wins — OPPO A78 5G8 spec wins — REDMI K90 Max

InnoReviews verdict

REDMI K90 Max wins this phone face-off, 69.2 to 35.4, pulling ahead mainly in display (+44) and performance (+41). OPPO A78 5G still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO A78 5G

  • 17% lower weight: 188 g vs 227 g

Reasons to pick the REDMI K90 Max

  • Stronger performance score: 64 vs 23
  • Stronger display score: 79 vs 35
  • Stronger camera score: 43 vs 29
  • Stronger battery score: 83 vs 48
  • Stronger features score: 87 vs 60

Display

Display comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
Screen size6.56 ″6.83 ″+4%
Panel typeIPS LCDAMOLED
Resolution1612x7201280x2772
Pixel density269 ppi447 ppi+66%
Refresh rate90 Hz165 Hz+83%
Peak brightness—3,500 nits

Performance

Performance comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
ChipsetMediaTek Dimensity 700MediaTek Dimensity 9500
AnTuTu360,000—
Geekbench 6 (single)730Bottom 13%—
Geekbench 6 (multi)1,900Bottom 12%—
RAM (max)8 GB16 GB+100%
Storage options128GB256/512GB/1TB
Storage typeUFS 2.2UFS 4.1

Camera

Camera comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
Main camera50 MP50 MP
Main aperturef/1.8f/1.68
Ultra-wide—8 MP
Max video1080p@30fps8K@30fps
Front camera8 MP20 MP+150%
OISNoYes

Battery

Battery comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
Capacity5,000 mAh8,550 mAh+71%
Wired charging33 W100 W+203%

Design

Design comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
Weight188 g+17%227 g
Thickness8 mm+2%8.2 mm
IP ratingIP54IP66/IP68/IP69
Frame materialPlastic—

Connectivity

Connectivity comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
5GYesYes
Wi-FiWi-Fi 5Wi-Fi 7
Bluetooth5.35.4
NFCYesYes
USBUSB-C 2.0USB-C
eSIMNoNo

Software

Software comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
OS at launchAndroid 13 (ColorOS 13)Android 16 (HyperOS 3)
OS update pledge2 years—

Audio

Audio comparison: OPPO A78 5G versus REDMI K90 Max
SpecOPPO A78 5GREDMI K90 Max
Stereo speakersYesYes
3.5mm jackYes—

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