Samsung Galaxy S26 Ultra vs Xiaomi 15 Ultra
The Samsung Galaxy S26 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $1299 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 84/100 (a 1-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5000); the main camera is 200 MP vs 50 MP; the Samsung Galaxy S26 Ultra is faster in AnTuTu (3,463,142 vs 3,030,376); per DXOMark lab testing, the Xiaomi 15 Ultra has the stronger camera (159 vs 157); the Samsung Galaxy S26 Ultra is thinner (7.9mm vs 9.4mm).
Profile comparison
Category scores
Samsung Galaxy S26 Ultra
Xiaomi 15 Ultra
What makes Samsung Galaxy S26 Ultra better?
- Higher AnTuTu: 3463142 vs 3030376
- Better Geekbench Single: 3601 vs 3050
- Better Geekbench Multi: 10686 vs 10200
- Better main camera: 200MP vs 50MP
- Lighter: 214g vs 225g
- Higher performance (96/100 vs 92/100)
- Better portability (51/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Bigger battery: 6000 vs 5000 mAh
- Faster charging: 90W vs 60W
- Faster wireless charging: 50W vs 25W
- Cheaper at launch: $999 vs $1299
- Better camera (87/100 vs 86/100)
- Longer battery life (80/100 vs 61/100)
- Better display (90/100 vs 88/100)
Comparison verdict
Comparing the Samsung Galaxy S26 Ultra vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 1 points higher (85/100 vs 84/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 61/100). Value score: Samsung Galaxy S26 Ultra — 78/100, Xiaomi 15 Ultra — 80/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Samsung Galaxy S26 Ultra and the Xiaomi 15 Ultra are nearly equal (96/100 vs 92/100). In the "display" category, the Xiaomi 15 Ultra and the Samsung Galaxy S26 Ultra are nearly equal (90/100 vs 88/100). In the "camera" category, the Xiaomi 15 Ultra and the Samsung Galaxy S26 Ultra are nearly equal (87/100 vs 86/100). In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S26 Ultra (80/100 vs 61/100). In the "portability" category, the Samsung Galaxy S26 Ultra notably outperforms the Xiaomi 15 Ultra (51/100 vs 29/100).
Specs comparison
| Specification | Samsung Galaxy S26 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3463142 | 3030376 | |
| Geekbench Single | 3601 | 3050 | |
| Geekbench Multi | 10686 | 10200 | |
| Display | 6.9" Dynamic AMOLED 2X | 6.7" LTPO AMOLED | |
| Resolution | 3120x1440 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5000 mAh | 6000 mAh | |
| Charging | 60W | 90W | |
| Wireless charging | 25W | 50W | |
| DXOMark (camera) | 157 | 159 | |
| Main camera | 200 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 12 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 / One UI 8.5 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 2600 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.6×78.1×7.9 mm | 161.3×75.3×9.4 mm | |
| Weight | 214 g | 225 g | |
| Launch price | $1299 | $999 |
Camera comparison
Samsung Galaxy S26 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Samsung Galaxy S26 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Samsung Galaxy S26 Ultra
- 5000 mAh
- NanoReview test: web browsing 10:12 hrs, total 28:50 hrs
- Wired: 60W
- Wireless: 25W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Samsung Galaxy S26 Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S26 Ultra leads Xiaomi 15 Ultra by 14.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $300. Xiaomi 15 Ultra was $300 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Samsung Galaxy S26 Ultra and the Xiaomi 15 Ultra are nearly equal (96/100 vs 92/100).
display
In the "display" category, the Xiaomi 15 Ultra and the Samsung Galaxy S26 Ultra are nearly equal (90/100 vs 88/100).
camera
In the "camera" category, the Xiaomi 15 Ultra and the Samsung Galaxy S26 Ultra are nearly equal (87/100 vs 86/100).
battery
In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S26 Ultra (80/100 vs 61/100).
portability
In the "portability" category, the Samsung Galaxy S26 Ultra notably outperforms the Xiaomi 15 Ultra (51/100 vs 29/100).
Frequently asked questions
Which is better: the Samsung Galaxy S26 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra edges out the Samsung Galaxy S26 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the Samsung Galaxy S26 Ultra and the Xiaomi 15 Ultra?
The Samsung Galaxy S26 Ultra has a MobileRank rating of 84/100, the Xiaomi 15 Ultra — 85/100.
Should you choose the Samsung Galaxy S26 Ultra over the Xiaomi 15 Ultra?
The Samsung Galaxy S26 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, budget-conscious buyers. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.