Samsung Galaxy S26 Ultra vs Xiaomi 15
Performance score
By our estimate, Samsung Galaxy S26 Ultra beats Xiaomi 15 by 21%.
A smartphone's score is the score of its chip — our calculation from specs, not a benchmark. See screen, battery and cameras in the tables below.
Overview
| Samsung Galaxy S26 Ultra | Xiaomi 15 | |
|---|---|---|
| Performance (0–100) | 48.24 | 39.82 |
| Chip | Snapdragon 8 Elite Gen 5 for Galaxy | Snapdragon 8 Elite |
| Brand | Samsung | Xiaomi |
| Release date | Q1 2026 | Q1 2025 |
| OS at launch | Android 16 | Android 15 |
Display
| Samsung Galaxy S26 Ultra | Xiaomi 15 | |
|---|---|---|
| Screen size | 6.9″ | 6.36″ |
| Resolution | 3120×1440 | 2670×1200 |
| Refresh rate | 120 Hz | 120 Hz |
| Display type | Dynamic AMOLED 2X | AMOLED |
Memory
| Samsung Galaxy S26 Ultra | Xiaomi 15 | |
|---|---|---|
| RAM | 12 / 16 GB | 12 GB |
| Storage | 256 GB / 512 GB / 1 TB | 256 GB / 512 GB |
Battery, cameras, body
| Samsung Galaxy S26 Ultra | Xiaomi 15 | |
|---|---|---|
| Battery | 5000 mAh | 5240 mAh |
| Wired charging | 60 W | 90 W |
| Main camera | 200 MP | 50 MP |
| Rear cameras | 4 | 3 |
| Front camera | 12 MP | 32 MP |
| Weight | 214 g | 191 g |
Pros and cons
Samsung Galaxy S26 Ultra
- chip is 21% faster
- more RAM: up to 16 vs 12 GB
- more storage in the top version: 1 TB vs 512 GB
- bigger screen: 6.9″ vs 6.36″
- more main-camera megapixels: 200 vs 50 MP
- newer: released in 2026
Xiaomi 15
- bigger battery: 5240 vs 5000 mAh
- faster charging: 90 vs 60 W
- more compact: 6.36″ vs 6.9″ screen
- lighter: 191 vs 214 g
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