Samsung
Galaxy S25 Ultra
Snapdragon 8 Elite · 6.9″ · 200 MP
93
/ 100
From $1,299
VS
Galaxy S25 Ultra wins by 1
Xiaomi
Xiaomi 15 Ultra
Snapdragon 8 Elite · Leica · 1-inch sensor
92
/ 100
From $1,499
Specdex verdict
Galaxy S25 Ultra takes it — here’s why.
In our weighted Specdex score, Galaxy S25 Ultra lands at 93 and Xiaomi 15 Ultra at 92. That puts Galaxy S25 Ultra ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Galaxy S25 Ultra if…
- ✓Huge anti-reflective 6.9″ display
- ✓200 MP sensor with 5× tele
- ✓S-Pen productivity
Pick Xiaomi 15 Ultra if…
- ✓1-inch LYT-900 main sensor
- ✓Leica tuning on every camera
- ✓90W + 80W wireless charging
Score breakdown
Galaxy S25 Ultra
93 cpu 96
gpu 97
camera 94
battery 89
display 96
design 92
Xiaomi 15 Ultra
92 cpu 96
gpu 96
camera 98
battery 92
display 94
design 88
Specs side-by-side
Spec
Galaxy S25 Ultra
Xiaomi 15 Ultra
Display
6.9″ Dynamic AMOLED 2X, 120Hz, 3120×1440
6.73″ LTPO AMOLED, 120Hz, 3200×1440
Chipset
Snapdragon 8 Elite for Galaxy
Snapdragon 8 Elite
RAM
12 GB
12/16 GB
Storage
256 / 512 GB / 1 TB
256 GB – 1 TB
Rear camera
200 MP + 50 MP 5× + 10 MP 3× + 50 MP UW
50 MP 1″ + 50 MP 3× + 50 MP 4.3× periscope + 50 MP UW
Front camera
12 MP
—
Battery
5000 mAh
6000 mAh
Charging
45W wired, 15W wireless
90W wired, 80W wireless
OS
Android 15, One UI 7
HyperOS 2 / Android 15
Weight
218 g
—
IP rating
IP68
—
Galaxy S25 Ultra
Pros
- +Huge anti-reflective 6.9″ display
- +200 MP sensor with 5× tele
- +S-Pen productivity
Cons
- −Pricey storage tiers
- −AI features still maturing
- −Heavier in hand
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 S25 Ultra vs Xiaomi 15 Ultra
Which is better, Galaxy S25 Ultra or Xiaomi 15 Ultra? +
Galaxy S25 Ultra scores 93 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is Galaxy S25 Ultra worth the price? +
At $1,299, Galaxy S25 Ultra delivers a Specdex score of 93 — strongest in gpu.
Is Xiaomi 15 Ultra worth the price? +
At $1,499, Xiaomi 15 Ultra delivers a Specdex score of 92 — strongest in camera.
Does Galaxy S25 Ultra 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.