Redmi 15 vs Vivo X300 Ultra
The Redmi 15 (2026) runs on the Qualcomm Snapdragon 685, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $180 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 46/100 (a 45-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 5500); the main camera is 108 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 476,175); the Redmi 15 is noticeably lighter (195g vs 230g).
Profile comparison
Category scores
Redmi 15
Vivo X300 Ultra
What makes Redmi 15 better?
- Lighter: 195g vs 230g
- Cheaper at launch: $180 vs $950
- Better portability (57/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 476175
- Better Geekbench Single: 3639 vs 466
- Better Geekbench Multi: 11047 vs 1396
- Bigger battery: 7000 vs 5500 mAh
- Faster charging: 100W vs 33W
- Better main camera: 200MP vs 108MP
- Higher performance (99/100 vs 34/100)
- Better camera (96/100 vs 40/100)
- Longer battery life (85/100 vs 52/100)
- Better display (89/100 vs 78/100)
Comparison verdict
Comparing the Redmi 15 vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 45 points higher (91/100 vs 46/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 34/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 40/100). In the "battery" category, the Vivo X300 Ultra leads (85/100 vs 52/100). Value score: Redmi 15 — 58/100, Vivo X300 Ultra — 94/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Vivo X300 Ultra significantly outperforms the Redmi 15 (99/100 vs 34/100). In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 78/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi 15 (96/100 vs 40/100). In the "battery" category, the Vivo X300 Ultra significantly outperforms the Redmi 15 (85/100 vs 52/100). In the "portability" category, the Redmi 15 notably outperforms the Vivo X300 Ultra (57/100 vs 39/100).
Specs comparison
| Specification | Redmi 15 | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 476175 | 4247433 | |
| Geekbench Single | 466 | 3639 | |
| Geekbench Multi | 1396 | 11047 | |
| Display | 6.8" AMOLED | 6.8" LTPO OLED | |
| Resolution | 1080x2340 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5500 mAh | 7000 mAh | |
| Charging | 33W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 108 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 13 MP | 32 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 15, HyperOS 2.2 | Android 16 | |
| Brightness (peak) | 850 nits | — | |
| NFC | yes | yes | |
| Protection | IP64 | IP69 | |
| Dimensions | 169.5×80.5×8.4 mm | 163.0×76.8×8.2 mm | |
| Weight | 195 g | 230 g | |
| Launch price | $180 | $950 |
Camera comparison
Redmi 15
- Main: 108MP f/1.8
- Front: 13MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Redmi 15
- 6.8" AMOLED
- Resolution: 1080x2340
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
Redmi 15
- 5500 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
Overall performance score
We compared Redmi 15 and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Redmi 15 by 88.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $770. Redmi 15 was $770 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Redmi 15 (99/100 vs 34/100).
display
In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 78/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi 15 (96/100 vs 40/100).
battery
In the "battery" category, the Vivo X300 Ultra significantly outperforms the Redmi 15 (85/100 vs 52/100).
portability
In the "portability" category, the Redmi 15 notably outperforms the Vivo X300 Ultra (57/100 vs 39/100).
Frequently asked questions
Which is better: the Redmi 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Redmi 15 by 45 points (91/100 vs 46/100).
What is the rating of the Redmi 15 and the Vivo X300 Ultra?
The Redmi 15 has a MobileRank rating of 46/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Redmi 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 40/100).
Which is more powerful: the Redmi 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 34/100).
Should you choose the Redmi 15 over the Vivo X300 Ultra?
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.