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; estimated prices are $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 (3,515,964 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).
Samsung Galaxy S26 Ultra
Xiaomi 15 Ultra
- Higher AnTuTu: 3515964 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)
- Bigger battery: 6000 vs 5000 mAh
- Faster charging: 90W vs 60W
- Faster wireless charging: 50W vs 25W
- Cheaper: $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)
- Better value for money (82/100 vs 76/100)
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). 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). In the "value for money" category, the Xiaomi 15 Ultra is a bit better (82/100 vs 76/100).
| Specification | Samsung Galaxy S26 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3515964 | 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 | |
| Price | $1299 | $999 |
Samsung Galaxy S26 Ultra
- Main: 200MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
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
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
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 16.0% in our overall performance rating.
Price difference: $300. Xiaomi 15 Ultra is cheaper by $300.
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).
value for money
In the "value for money" category, the Xiaomi 15 Ultra is a bit better (82/100 vs 76/100).
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.