Redmi 15a vs Vivo X300 Ultra
The Redmi 15a (2026) runs on the Unisoc T8300, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 42/100 (a 49-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 6300); the main camera is 32 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 639,225); the Vivo X300 Ultra has NFC for contactless payments, the Redmi 15a doesn't; the Redmi 15a is noticeably lighter (210g vs 230g).
Redmi 15a
Vivo X300 Ultra
- Lighter: 210g vs 230g
- Better portability (51/100 vs 39/100)
- Higher AnTuTu: 4247433 vs 639225
- Better Geekbench Single: 3640 vs 880
- Better Geekbench Multi: 11033 vs 2073
- Bigger battery: 7000 vs 6300 mAh
- Faster charging: 100W vs 15W
- Better main camera: 200MP vs 32MP
- Higher performance (99/100 vs 47/100)
- Better camera (96/100 vs 20/100)
- Longer battery life (85/100 vs 52/100)
- Better display (89/100 vs 55/100)
Comparing the Redmi 15a vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 49 points higher (91/100 vs 42/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 47/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 20/100). In the "battery" category, the Vivo X300 Ultra leads (85/100 vs 52/100). In the "performance" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (99/100 vs 47/100). In the "display" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (89/100 vs 55/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (96/100 vs 20/100). In the "battery" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (85/100 vs 52/100). In the "portability" category, the Redmi 15a is a bit better (51/100 vs 39/100).
| Specification | Redmi 15a | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Unisoc T8300 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 639225 | 4247433 | |
| Geekbench Single | 880 | 3640 | |
| Geekbench Multi | 2073 | 11033 | |
| Display | 6.9" IPS LCD | 6.8" LTPO OLED | |
| Resolution | 720x1600 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6300 mAh | 7000 mAh | |
| Charging | 15W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 32 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 16, HyperOS 3, up to 4 major Android upgrades | Android 16 | |
| Brightness (peak) | 800 nits | — | |
| NFC | no | yes | |
| Protection | — | IP69 | |
| Dimensions | 171.6×79.5×8.2 mm | 163.0×76.8×8.2 mm | |
| Weight | 210 g | 230 g | |
| Launch price | — | $950 |
Redmi 15a
- Main: 32MP f/f/2.0
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Redmi 15a
- 6.9" IPS LCD
- Resolution: 720x1600
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Redmi 15a
- 6300 mAh
- Wired: 15W
- 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 15a and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Redmi 15a by 85.0% in our overall performance rating.
Redmi 15a
Price unknownperformance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (99/100 vs 47/100).
display
In the "display" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (89/100 vs 55/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (96/100 vs 20/100).
battery
In the "battery" category, the Vivo X300 Ultra significantly outperforms the Redmi 15a (85/100 vs 52/100).
portability
In the "portability" category, the Redmi 15a is a bit better (51/100 vs 39/100).
Which is better: the Redmi 15a or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Redmi 15a by 49 points (91/100 vs 42/100).
What is the rating of the Redmi 15a and the Vivo X300 Ultra?
The Redmi 15a has a MobileRank rating of 42/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Redmi 15a or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 20/100).
Which is more powerful: the Redmi 15a or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 47/100).
Should you choose the Redmi 15a over the Vivo X300 Ultra?
The Redmi 15a 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.