Samsung
Galaxy S24 Ultra 128GB
Snapdragon 8 Gen 3 · One UI · 128GB
92
/ 100
From $1,299
VS
Xiaomi
Xiaomi 15 Ultra
Snapdragon 8 Elite · Leica · 1-inch sensor
92
/ 100
From $1,499
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Galaxy S24 Ultra 128GB lands at 92 and Xiaomi 15 Ultra at 92. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Galaxy S24 Ultra 128GB if…
- ✓Large AMOLED display
- ✓S-Pen or DeX productivity (on Ultra/Note)
- ✓Many storage tiers
Pick Xiaomi 15 Ultra if…
- ✓1-inch LYT-900 main sensor
- ✓Leica tuning on every camera
- ✓90W + 80W wireless charging
Galaxy S24 Ultra 128GB 92
vs 92 Xiaomi 15 Ultra
Score breakdown
Galaxy S24 Ultra 128GB
92 cpu 92
gpu 91
camera 94
battery 88
display 94
design 91
Xiaomi 15 Ultra
92 cpu 96
gpu 96
camera 98
battery 92
display 94
design 88
Specs side-by-side
| Spec | Galaxy S24 Ultra 128GB | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | Snapdragon 8 Gen 3 | Snapdragon 8 Elite |
| Storage | 128GB | ▲ 256 GB – 1 TB |
| OS | Android 14 | HyperOS 2 / Android 15 |
| Release year | 2024 | — |
| Display | — | 6.73″ LTPO AMOLED, 120Hz, 3200×1440 |
| RAM | — | 12/16 GB |
| Rear camera | — | 50 MP 1″ + 50 MP 3× + 50 MP 4.3× periscope + 50 MP UW |
| Battery | — | 6000 mAh |
| Charging | — | 90W wired, 80W wireless |
Galaxy S24 Ultra 128GB
Pros
- +Large AMOLED display
- +S-Pen or DeX productivity (on Ultra/Note)
- +Many storage tiers
Cons
- −One UI can be heavy
- −Pricey top trims
- −Update speed trails Pixel
Xiaomi 15 Ultra
Pros
- +1-inch LYT-900 main sensor
- +Leica tuning on every camera
- +90W + 80W wireless charging
Cons
- −Limited US availability
- −HyperOS still maturing
- −Large and heavy
FAQ: Galaxy S24 Ultra 128GB vs Xiaomi 15 Ultra
Which is better, Galaxy S24 Ultra 128GB or Xiaomi 15 Ultra? +
Both score 92 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Galaxy S24 Ultra 128GB worth the price? +
At $1,299, Galaxy S24 Ultra 128GB delivers a Specdex score of 92 — strongest in camera.
Is Xiaomi 15 Ultra worth the price? +
At $1,499, Xiaomi 15 Ultra delivers a Specdex score of 92 — strongest in camera.
Does Galaxy S24 Ultra 128GB or Xiaomi 15 Ultra last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.