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InnoReviews

iPhone 18 Pro Max vs Xiaomi 15 Ultra

WINNER
iPhone 18 Pro Max
78.5Inno Score
VS
Xiaomi 15 Ultra

Xiaomi

Xiaomi 15 Ultra

$1,499

75.9Inno Score
91.1Performance79.1
65.4Display69.1
63.7Camera73.2
76.7Battery79
100Features78.7
7 spec wins — iPhone 18 Pro Max12 spec wins — Xiaomi 15 Ultra

InnoReviews verdict

iPhone 18 Pro Max wins this phone face-off, 78.5 to 75.9, pulling ahead mainly in features (+21) and performance (+12). Xiaomi 15 Ultra still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the iPhone 18 Pro Max

  • Stronger performance score: 91 vs 79
  • Stronger features score: 100 vs 79
  • 61% higher Active use endurance: 19.3 h vs 12 h
  • 55% higher Geekbench 6 (single): 4,735 vs 3,050
  • 33% higher Geekbench 6 (multi): 12,794 vs 9,600
  • Lower launch price: $1,299 vs $1,499

Reasons to pick the Xiaomi 15 Ultra

  • Stronger display score: 69 vs 65
  • Stronger camera score: 73 vs 64
  • 317% higher telephoto: 200 MP vs 48 MP
  • 220% higher Wireless charging: 80 W vs 25 W
  • 78% higher Front camera: 32 MP vs 18 MP

Display

Display comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
Screen size6.9 ″+3%6.73 ″
Panel typeLTPO Super Retina XDR OLEDLTPO AMOLED
Resolution1320x28681440x3200
Pixel density460 ppi522 ppi+13%
Refresh rate120 Hz120 Hz
Peak brightness3,000 nits3,200 nits+7%
Screen-to-body90.7 %+1%90 %

Performance

Performance comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
ChipsetApple A20 ProSnapdragon 8 Elite
AnTuTu3,463,072+31%2,650,000
Geekbench 6 (single)4,735+55%Top 1%3,050Top 11%
Geekbench 6 (multi)12,794+33%Top 2%9,600Top 9%
Wild Life Extreme stability57 %Top 75%—
RAM (max)12 GB16 GB+33%
Storage options256/512GB/1TB/2TB256/512GB/1TB
Storage typeNVMeUFS 4.1

Camera

Camera comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
Main camera48 MP50 MP+4%
Main aperturef/1.5-4.0f/1.63
Ultra-wide48 MP50 MP+4%
Telephoto48 MP200 MP+317%
Optical zoom4 x4.3 x+7%
Max video4K@120fps8K@30fps
Front camera18 MP32 MP+78%
OISYesYes

Battery

Battery comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
Capacity5,391 mAh5,410 mAh
Wired charging53 W90 W+70%
Wireless charging25 W80 W+220%
Active use endurance19.3 h+61%12 h

Design

Design comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
Weight249 g226 g+9%
Thickness8.8 mm+6%9.4 mm
IP ratingIP68IP68
Frame materialAluminum unibodyAluminum

Connectivity

Connectivity comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 7
Bluetooth6.06.0
NFCYesYes
USBUSB-C 3.2 Gen 2USB-C 3.2
eSIMYesYes

Software

Software comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
OS at launchiOS 27Android 15 (HyperOS 2)
OS update pledge—4 years

Audio

Audio comparison: iPhone 18 Pro Max versus Xiaomi 15 Ultra
SpeciPhone 18 Pro MaxXiaomi 15 Ultra
Stereo speakersYesYes
3.5mm jackNoNo

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