Redmi Note 15 vs Vivo X300 Ultra
The Redmi Note 15 (2026) runs on the Qualcomm Snapdragon 6 Gen 3, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $229 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 53/100 (a 38-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 5520); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 824,514); the Redmi Note 15 is noticeably lighter (193g vs 230g).
Redmi Note 15
Vivo X300 Ultra
- Lighter: 193g vs 230g
- Cheaper at launch: $229 vs $950
- Better portability (70/100 vs 39/100)
- Higher AnTuTu: 4247433 vs 824514
- Better Geekbench Single: 3640 vs 1015
- Better Geekbench Multi: 11033 vs 2920
- Bigger battery: 7000 vs 5520 mAh
- Faster charging: 100W vs 33W
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 55/100)
- Better camera (96/100 vs 35/100)
- Longer battery life (85/100 vs 52/100)
- Better display (89/100 vs 79/100)
Comparing the Redmi Note 15 vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 38 points higher (91/100 vs 53/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 55/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 35/100). In the "battery" category, the Vivo X300 Ultra leads (85/100 vs 52/100). Value score: Redmi Note 15 — 64/100, Vivo X300 Ultra — 94/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo X300 Ultra significantly outperforms the Redmi Note 15 (99/100 vs 55/100). In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 79/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi Note 15 (96/100 vs 35/100). In the "battery" category, the Vivo X300 Ultra significantly outperforms the Redmi Note 15 (85/100 vs 52/100). In the "portability" category, the Redmi Note 15 significantly outperforms the Vivo X300 Ultra (70/100 vs 39/100).
| Specification | Redmi Note 15 | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6 Gen 3 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 824514 | 4247433 | |
| Geekbench Single | 1015 | 3640 | |
| Geekbench Multi | 2920 | 11033 | |
| Display | 6.8" AMOLED | 6.8" LTPO OLED | |
| Resolution | 2400x1080 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5520 mAh | 7000 mAh | |
| Charging | 33W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 3200 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | IP69 | |
| Dimensions | 164.0×75.4×7.4 mm | 163.0×76.8×8.2 mm | |
| Weight | 193 g | 230 g | |
| Launch price | $229 | $950 |
Redmi Note 15
- Main: 50MP
- Ultrawide: 8MP
- Front: 16MP
Vivo X300 Ultra
- Main: 200MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Redmi Note 15
- 6.8" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Redmi Note 15
- 5520 mAh
- Wired: 33W
- No wireless charging
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
We compared Redmi Note 15 and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Redmi Note 15 by 80.6% in our overall performance rating.
Launch price difference: $721. Redmi Note 15 was $721 cheaper at launch.
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Redmi Note 15 (99/100 vs 55/100).
display
In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 79/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi Note 15 (96/100 vs 35/100).
battery
In the "battery" category, the Vivo X300 Ultra significantly outperforms the Redmi Note 15 (85/100 vs 52/100).
portability
In the "portability" category, the Redmi Note 15 significantly outperforms the Vivo X300 Ultra (70/100 vs 39/100).
Which is better: the Redmi Note 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Redmi Note 15 by 38 points (91/100 vs 53/100).
What is the rating of the Redmi Note 15 and the Vivo X300 Ultra?
The Redmi Note 15 has a MobileRank rating of 53/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Redmi Note 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 35/100).
Which is more powerful: the Redmi Note 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 55/100).
Should you choose the Redmi Note 15 over the Vivo X300 Ultra?
The Redmi Note 15 is a better fit for everyday use. The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.