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; launch prices were $130 and $950. 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).
Profile comparison
Category scores
Redmi 15a
Vivo X300 Ultra
What makes Redmi 15a better?
- Lighter: 210g vs 230g
- Cheaper at launch: $130 vs $950
- Better portability (51/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 639225
- Better Geekbench Single: 3639 vs 880
- Better Geekbench Multi: 11047 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)
Comparison verdict
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). Value score: Redmi 15a — 64/100, 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 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).
Specs comparison
| Specification | Redmi 15a | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Unisoc T8300 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 639225 | 4247433 | |
| Geekbench Single | 880 | 3639 | |
| Geekbench Multi | 2073 | 11047 | |
| 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 | 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 | $130 | $950 |
Camera comparison
Redmi 15a
- Main: 32MP f/2.0
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
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
Battery and charging
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
Overall performance score
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.
Benchmarks
Launch prices and where to check today's
Launch price difference: $820. Redmi 15a was $820 cheaper at launch.
Detailed category analysis
performance
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).
Frequently asked questions
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 Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.