Xiaomi 15 Ultra
Xiaomi 17
🏆 Verdict
Xiaomi 17 is the better pick overall by 4 points, leading in Battery and Charging. Xiaomi 15 Ultra remains a strong contender elsewhere.
Xiaomi 17 offers more for the money ($630 vs $1,619 at launch).
By category
Performance
Both run the Snapdragon 8 Elite with practically the same performance.
Camera
Xiaomi 15 Ultra zooms further optically (4.3× vs 2.6×).
Battery
Xiaomi 17's battery is 1,590 mAh larger (7,000 vs 5,410 mAh), about 29% more. Real battery life also depends on chip and display efficiency.
Charging
Xiaomi 17 charges faster over cable (100W vs 90W). Wireless charging is faster on Xiaomi 15 Ultra (80W vs 50W).
Display
Xiaomi 15 Ultra has the larger screen (6.73" vs 6.3"). Xiaomi 17's screen gets brighter (3,500 vs 3,200 nits), which shows outdoors. Xiaomi 15 Ultra's screen is sharper (521 vs 464 ppi).
Build & durability
Xiaomi 17 is 35 g lighter.
Updates
Both have about the same update window (4 years).
Specifications
| Xiaomi 15 Ultra | Xiaomi 17 | |
|---|---|---|
| Snapdragon 8 Elite | Chipset | Snapdragon 8 Elite Gen 5 |
| 16 GB | RAM | 12 GB / 16 GB |
| 512 GB / 1 TB | Storage | 256 GB / 512 GB / 1 TB |
| 6.73" LTPO AMOLED | Display | 6.3" LTPO AMOLED |
| 120 Hz | Refresh rate | 120 Hz |
| 3200×1440 (521 ppi) | Resolution | 2656×1220 (464 ppi) |
| 3,200 nits | Peak brightness | 3,500 nits |
| 50 MP | Main camera | 50 MP |
| 50 MP | Ultrawide | 50 MP |
| 200 MP · 4.3× | Telephoto | 50 MP · 2.6× |
| 32 MP | Front camera | 32 MP |
| 5,410 mAh | Battery | 7,000 mAh |
| 90 W | Wired charging | 100 W |
| 80 W | Wireless charging | 50 W |
| IP68 | Water & dust rating | IP68 |
| aluminium | Frame | aluminium |
| 226 g | Weight | 191 g |
| 4 years | OS updates (estimated) | 4 years |
| EUR 1,499 (≈ $1,619) | Launch price | CNY 4,499 (≈ $630) |
| 2025-02 | Released | 2025-09 |
Official source: Xiaomi 15 Ultra · Official source: Xiaomi 17
⚠ Data pending confirmation: Xiaomi 17
Xiaomi 15 Ultra
Pros
- 4.3× optical zoom
- 6.73" screen
Cons
- Smaller battery
- Heavier (226 g)
- Pricier ($1,619)
Xiaomi 17
Pros
- 7,000 mAh battery
- Light at 191 g
- Lower price ($630)
How is the score calculated?
Each phone gets 0–100 points in seven categories (performance, camera, battery, charging, display, build, updates), computed only from its published specs, then combined with fixed, published weights. A gap under 2.5 points counts as a tie. The performance index is an estimate based on benchmark results published at launch.
Figures come from the manufacturers’ official pages. Some specs vary by market. We do not sell devices or earn commissions.