Honor 300 Ultra vs Xiaomi 15 Ultra
The Honor 300 Ultra (2024) runs on the Qualcomm Snapdragon 8 Gen 3, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $580 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 76/100 (a 9-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5300); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 2,423,624); the Honor 300 Ultra is noticeably lighter (198g vs 225g).
Honor 300 Ultra
Xiaomi 15 Ultra
- Faster charging: 100W vs 90W
- Faster wireless charging: 80W vs 50W
- Lighter: 198g vs 225g
- Cheaper at launch: $580 vs $999
- Better portability (58/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 2423624
- Better Geekbench Single: 3050 vs 2205
- Better Geekbench Multi: 10200 vs 7192
- Bigger battery: 6000 vs 5300 mAh
- Higher performance (92/100 vs 83/100)
- Better camera (87/100 vs 66/100)
- Better display (90/100 vs 83/100)
Comparing the Honor 300 Ultra vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 9 points higher (85/100 vs 76/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 66/100). Value score: Honor 300 Ultra — 68/100, Xiaomi 15 Ultra — 82/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Xiaomi 15 Ultra is a bit better (92/100 vs 83/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 83/100). In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Honor 300 Ultra (87/100 vs 66/100). In the "battery" category, both devices are on the same level — 80/100. In the "portability" category, the Honor 300 Ultra notably outperforms the Xiaomi 15 Ultra (58/100 vs 29/100).
| Specification | Honor 300 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2423624 | 3030376 | |
| Geekbench Single | 2205 | 3050 | |
| Geekbench Multi | 7192 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1224x2700 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5300 mAh | 6000 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 80W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 50 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 15, MagicOS 9 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 4000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP65 | IP68 | |
| Dimensions | 163.8×75.3×8.2 mm | 161.3×75.3×9.4 mm | |
| Weight | 198 g | 225 g | |
| Launch price | $580 | $999 |
Honor 300 Ultra
- Main: 50MP f/f/2.0
- Ultrawide: 12MP
- Telephoto: 50MP
- Front: 50MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Honor 300 Ultra
- 6.8" AMOLED
- Resolution: 1224x2700
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Honor 300 Ultra
- 5300 mAh
- Wired: 100W
- Wireless: 80W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Honor 300 Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Honor 300 Ultra by 20.0% in our overall performance rating.
Launch price difference: $419. Honor 300 Ultra was $419 cheaper at launch.
performance
In the "performance" category, the Xiaomi 15 Ultra is a bit better (92/100 vs 83/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 83/100).
camera
In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Honor 300 Ultra (87/100 vs 66/100).
battery
In the "battery" category, both devices are on the same level — 80/100.
portability
In the "portability" category, the Honor 300 Ultra notably outperforms the Xiaomi 15 Ultra (58/100 vs 29/100).
Which is better: the Honor 300 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra edges out the Honor 300 Ultra by just 9 points — the two devices are very close in overall level.
What is the rating of the Honor 300 Ultra and the Xiaomi 15 Ultra?
The Honor 300 Ultra has a MobileRank rating of 76/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Honor 300 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 66/100).
Which is more powerful: the Honor 300 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 83/100).
Should you choose the Honor 300 Ultra over the Xiaomi 15 Ultra?
The Honor 300 Ultra is a better fit for gamers and power users, those who care about battery life. 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.