Skip to content
InnoReviews

Xiaomi 15 Ultra vs Xiaomi MIX Fold 4

WINNER
Xiaomi 15 Ultra

Xiaomi

Xiaomi 15 Ultra

$1,499

75.9Inno Score
VS
X
61.2Inno Score
79.1Performance54.4
69.1Display60.5
73.2Camera52.1
79Battery68.1
78.7Features86.7
12 spec wins — Xiaomi 15 Ultra2 spec wins — Xiaomi MIX Fold 4

InnoReviews verdict

Xiaomi 15 Ultra wins this phone face-off, 75.9 to 61.2, pulling ahead mainly in performance (+25) and camera (+21). Xiaomi MIX Fold 4 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Xiaomi 15 Ultra

  • Stronger performance score: 79 vs 54
  • Stronger display score: 69 vs 61
  • Stronger camera score: 73 vs 52
  • Stronger battery score: 79 vs 68
  • 1900% higher telephoto: 200 MP vs 10 MP

Reasons to pick the Xiaomi MIX Fold 4

  • Stronger features score: 87 vs 79
  • 19% higher Screen size: 7.98 ″ vs 6.73 ″
  • 16% higher Optical zoom: 5 x vs 4.3 x

Display

Display comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
Screen size6.73 ″7.98 ″+19%
Panel typeLTPO AMOLEDFoldable LTPO AMOLED
Resolution1440x32002224x2488
Pixel density522 ppi+25%418 ppi
Refresh rate120 Hz120 Hz
Peak brightness3,200 nits+7%3,000 nits
Screen-to-body90 %—

Performance

Performance comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
ChipsetSnapdragon 8 EliteSnapdragon 8 Gen 3
AnTuTu2,650,000—
Geekbench 6 (single)3,050+40%Top 12%2,184Top 28%
Geekbench 6 (multi)9,600+41%Top 10%6,794Top 25%
Wild Life Extreme stability—54 %Bottom 16%
RAM (max)16 GB16 GB
Storage options256/512GB/1TB256/512GB/1TB
Storage typeUFS 4.1UFS 4.0

Camera

Camera comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
Main camera50 MP50 MP
Main aperturef/1.63f/1.7
Ultra-wide50 MP+317%12 MP
Telephoto200 MP+1900%10 MP
Optical zoom4.3 x5 x+16%
Max video8K@30fps8K@24fps
Front camera32 MP+100%16 MP
OISYesYes

Battery

Battery comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
Capacity5,410 mAh+6%5,100 mAh
Wired charging90 W+34%67 W
Wireless charging80 W+60%50 W
Active use endurance12 h—

Design

Design comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
Weight226 g226 g
Thickness9.4 mm+1%9.5 mm
IP ratingIP68IPX8
Frame materialAluminumMetal

Connectivity

Connectivity comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 7
Bluetooth6.05.4
NFCYesYes
USBUSB-C 3.2USB-C 3.2 Gen 1
eSIMYesNo

Software

Software comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
OS at launchAndroid 15 (HyperOS 2)Android 14 (HyperOS)
OS update pledge4 years—

Audio

Audio comparison: Xiaomi 15 Ultra versus Xiaomi MIX Fold 4
SpecXiaomi 15 UltraXiaomi MIX Fold 4
Stereo speakersYesYes
3.5mm jackNoNo

Related comparisons

Xiaomi 15 Ultravs REDMI K80 ProVSXiaomi 15 Ultravs Samsung Galaxy S26 UltraVSXiaomi 15 Ultravs Honor 500 ProVSXiaomi 15 Ultravs Redmi K100 ProVSXiaomi MIX Fold 4vs Google Pixel 11 Pro FoldVSXiaomi MIX Fold 4vs Honor Magic V FlipVSXiaomi MIX Fold 4vs Huawei Pura 70 ProVSXiaomi MIX Fold 4vs Huawei nova 15 ProVS

Try another matchup