iPhone 18 Pro Max vs Xiaomi 15 Ultra
Head-to-head specifications
| Metric | iPhone 18 Pro Max | Xiaomi 15 Ultra | Difference |
|---|---|---|---|
| AnTuTu v10 score | 2,980,000 | 2,758,993 | +8.0% |
| Chipset | Apple A20 | Snapdragon 8 Elite | — |
| Display | 6.9" 120 Hz | 6.7" 120 Hz | — |
| Battery (mAh) | 4,900 | 600 | +716.7% |
| Rear cameras | 48+48+48+LiDAR MP | 50+200+50+50 MP | — |
| Front camera (MP) | 24 | 32 | — |
| RAM / storage (base) | 12 GB / 256 GB | 12 GB / 256 GB | — |
| Max configuration | 12 GB / 1024 GB | 16 GB / 1024 GB | — |
| Weight (g) | 219 | 225 | -2.7% |
| Connectivity / unlock | 5G · No - Face ID | 5G · Under-display | — |
| Launch price (USD) | $1,249–$1,649 | $1,299–$1,549 | -3.8% |
- iPhone 18 Pro Max leads on raw performance by about 8% on AnTuTu v10 (Apple A20 vs Snapdragon 8 Elite).
- iPhone 18 Pro Max is the cheaper option at launch pricing.
Verdict: iPhone 18 Pro Max or Xiaomi 15 Ultra?
iPhone 18 Pro Max advantages
- Raw performance (+7%)
- Battery capacity (+88%)
Xiaomi 15 Ultra advantages
- Camera resolution (+76%)
Which should you choose?
- Choose the iPhone 18 Pro Max if you game or want the most headroom for years of updates.
- Choose the Xiaomi 15 Ultra if photography is your priority.
- Choose the iPhone 18 Pro Max if you need all-day (or two-day) battery life.
Value for money
iPhone 18 Pro Max delivers more performance per dollar, making it the better value of the two at their listed prices.
iPhone 18 Pro Max vs Xiaomi 15 Ultra: which should you choose?
iPhone 18 Pro Max — Apple iOS 20 smartphone (2026) with a 6.9-inch 120 Hz Super Retina XDR OLED, Apple A20, 4900 mAh battery and 48MP main camera, scoring about 2,980,000 on AnTuTu v10; launched at $1,249.
Xiaomi 15 Ultra — Xiaomi Android 15 smartphone (2025) with a 6.73-inch 120 Hz LTPO AMOLED, Snapdragon 8 Elite, 600 mAh battery and 200MP main camera, scoring about 2,758,993 on AnTuTu v10; launched at $1,299.
iPhone 18 Pro Max vs Xiaomi 15 Ultra: iPhone 18 Pro Max is the faster phone. iPhone 18 Pro Max leads on raw performance by about 8% on AnTuTu v10 (Apple A20 vs Snapdragon 8 Elite). iPhone 18 Pro Max is the cheaper option at launch pricing.
Performance and everyday use
The iPhone 18 Pro Max is the faster device on raw benchmarks (2,980,000 vs 2,758,993 on AnTuTu v10), running the Apple A20 against the Snapdragon 8 Elite. For messaging, browsing and social apps both feel instant — the gap matters most for gaming and long-term headroom.
Display and battery
iPhone 18 Pro Max carries a 6.9-inch 120 Hz Super Retina XDR OLED against a 6.7-inch 120 Hz LTPO AMOLED on the Xiaomi 15 Ultra. Batteries are 4,900 and 600 mAh — though software tuning and chipset efficiency shape real-world endurance as much as capacity.
Cameras, storage and price
Rear arrays are 48+48+48+LiDAR MP versus 50+200+50+50 MP, with 24 MP and 32 MP front cameras. Base configurations start at 12 GB / 256 GB and 12 GB / 256 GB. The iPhone 18 Pro Max is the more affordable at about $1,249 launch price, which may matter more than a small spec gap.
The verdict
Both are credible choices in the smartphone comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the iPhone 18 Pro Max better than the Xiaomi 15 Ultra?
iPhone 18 Pro Max takes the overall edge, though Xiaomi 15 Ultra wins in specific areas worth weighing. iPhone 18 Pro Max leads on raw performance by about 8% on AnTuTu v10 (Apple A20 vs Snapdragon 8 Elite).
What is the main difference between the iPhone 18 Pro Max and the Xiaomi 15 Ultra?
iPhone 18 Pro Max leads on raw performance by about 8% on AnTuTu v10 (Apple A20 vs Snapdragon 8 Elite). iPhone 18 Pro Max is the cheaper option at launch pricing.
Which is better value?
iPhone 18 Pro Max delivers more performance per dollar, making it the better value of the two at their listed prices.
Which should I choose?
Choose the iPhone 18 Pro Max if you game or want the most headroom for years of updates. Choose the Xiaomi 15 Ultra if photography is your priority.
Methodology
Smartphones are compared on AnTuTu v10 benchmark scores, chipset, display size and refresh rate, battery capacity, rear and front camera resolution, RAM and storage across launch variants, weight, and launch pricing (USD). Each model shows its base variant with the top-spec configuration noted where multiple variants exist. Benchmark scores reflect the listed chipset variant; real-world battery life and camera quality depend on software tuning, not just hardware numbers.