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InnoReviews

iQOO Z9 (China) vs Xiaomi MIX Fold 4

WINNER
iQOO Z9 (China)
61.4Inno Score
VS
Xiaomi MIX Fold 4
61.2Inno Score
53.5Performance54.4
82.1Display60.5
30.7Camera52.1
70.4Battery68.1
86.7Features86.7
7 spec wins — iQOO Z9 (China)3 spec wins — Xiaomi MIX Fold 4

InnoReviews verdict

This one is close to a dead heat: iQOO Z9 (China) scores 61.4 against 61.2 for Xiaomi MIX Fold 4. Pick by the categories that matter to you — iQOO Z9 (China) edges ahead in display and battery, or by price.

Which would you pick?

Key differences

Reasons to pick the iQOO Z9 (China)

  • Stronger display score: 82 vs 61
  • 50% higher Peak brightness: 4,500 nits vs 3,000 nits
  • 20% higher Refresh rate: 144 Hz vs 120 Hz
  • 19% higher Wired charging: 80 W vs 67 W
  • 18% higher capacity: 6,000 mAh vs 5,100 mAh

Reasons to pick the Xiaomi MIX Fold 4

  • Stronger camera score: 52 vs 31
  • 33% higher RAM (max): 16 GB vs 12 GB
  • 18% higher Screen size: 7.98 ″ vs 6.78 ″
  • Has OIS — the other doesn't

Display

Display comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
Screen size6.78 ″7.98 ″+18%
Panel typeAMOLEDFoldable LTPO AMOLED
Resolution2800x12602224x2488
Pixel density453 ppi+8%418 ppi
Refresh rate144 Hz+20%120 Hz
Peak brightness4,500 nits+50%3,000 nits
Screen-to-body93.4 %—

Performance

Performance comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
ChipsetSnapdragon 7 Gen 3Snapdragon 8 Gen 3
AnTuTu978,328Bottom 24%—
AnTuTu 11 (CPU)403,153Bottom 33%—
AnTuTu 11 (GPU)152,277Bottom 22%—
AnTuTu 11 (Memory)145,523Bottom 9%—
AnTuTu 11 (UX)277,375Bottom 24%—
Geekbench 6 (single)—2,184Top 29%
Geekbench 6 (multi)—6,794Top 26%
Wild Life Extreme stability—54 %Bottom 17%
RAM (max)12 GB16 GB+33%
Storage options128GB/256GB/512GB256/512GB/1TB
Storage typeUFS 2.2UFS 4.0

Camera

Camera comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
Main camera50 MP50 MP
Main aperturef/1.79f/1.7
Ultra-wide—12 MP
Telephoto—10 MP
Optical zoom—5 x
Max video4K@30fps8K@24fps
Front camera16 MP16 MP
OISNoYes

Battery

Battery comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
Capacity6,000 mAh+18%5,100 mAh
Wired charging80 W+19%67 W
Wireless charging—50 W

Design

Design comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
Weight195 g+14%226 g
Thickness8 mm+16%9.5 mm
IP ratingIP64IPX8
Frame material—Metal

Connectivity

Connectivity comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
5GYesYes
Wi-FiWi-Fi 6Wi-Fi 7
Bluetooth5.45.4
NFCYesYes
USBUSB-C 2.0USB-C 3.2 Gen 1
eSIMNoNo

Software

Software comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
OS at launchAndroid 14 (OriginOS 4)Android 14 (HyperOS)

Audio

Audio comparison: iQOO Z9 (China) versus Xiaomi MIX Fold 4
SpeciQOO Z9 (China)Xiaomi MIX Fold 4
Stereo speakersYesYes
3.5mm jackNoNo

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