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InnoReviews

OPPO A3x 4G vs Xiaomi 18 Pro Max

OPPO A3x 4G
32.9Inno Score
VS
WINNER
Xiaomi 18 Pro Max
77.1Inno Score
28.9Performance64.4
37.6Display69.8
20Camera83.6
53.4Battery92
20Features86.7
3 spec wins — OPPO A3x 4G12 spec wins — Xiaomi 18 Pro Max

InnoReviews verdict

Xiaomi 18 Pro Max wins this phone face-off, 77.1 to 32.9, pulling ahead mainly in features (+67) and camera (+64). OPPO A3x 4G still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO A3x 4G

  • 21% lower weight: 186 g vs 235 g
  • Has 3.5mm jack — the other doesn't

Reasons to pick the Xiaomi 18 Pro Max

  • Stronger performance score: 64 vs 29
  • Stronger display score: 70 vs 38
  • Stronger camera score: 84 vs 20
  • Stronger battery score: 92 vs 53
  • Stronger features score: 87 vs 20

Display

Display comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
Screen size6.67 ″6.9 ″+3%
Panel typeLCDLTPO AMOLED
Resolution1604x7201208x2624
Pixel density264 ppi418 ppi+58%
Refresh rate90 Hz120 Hz+33%
Peak brightness1,000 nits4,000 nits+300%
Screen-to-body89.9 %91.6 %+2%

Performance

Performance comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
ChipsetSnapdragon 6s 4G Gen 1Snapdragon 8 Elite Extreme Gen 6
RAM (max)8 GB16 GB+100%
Storage options64GB / 128GB / 256GB256/512GB/1TB
Storage typeeMMC 5.1UFS 4.1

Camera

Camera comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
Main camera8 MP200 MP+2400%
Main aperturef/2.0f/1.7
Ultra-wide—50 MP
Telephoto—200 MP
Optical zoom—3.2 x
Max video1080p@30fps8K@30fps
Front camera5 MP50 MP+900%
OIS—Yes

Battery

Battery comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
Capacity5,100 mAh8,500 mAh+67%
Wired charging45 W100 W+122%
Wireless charging—50 W

Design

Design comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
Weight186 g+21%235 g
Thickness7.7 mm+9%8.4 mm
IP ratingIP54IP66/IP68/IP69
Frame material—Aluminum

Connectivity

Connectivity comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
5GNoYes
Wi-FiWi-Fi 5Wi-Fi 7
Bluetooth5.06.0
NFCNoYes
USBUSB-CUSB-C 3.2
eSIM—No

Software

Software comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
OS at launchAndroid 14 (ColorOS 14)Android 17 (HyperOS 4)

Audio

Audio comparison: OPPO A3x 4G versus Xiaomi 18 Pro Max
SpecOPPO A3x 4GXiaomi 18 Pro Max
Stereo speakers—Yes
3.5mm jackYesNo

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