Redmi 15 vs Vivo Y400 4G
The Redmi 15 (2025) runs on the Qualcomm Snapdragon 685, while the Vivo Y400 4G (2025) runs on the Qualcomm Snapdragon 685; launch prices were $180 and $200. By overall MobileRank rating, the Vivo Y400 4G leads — 44/100 vs 43/100 (a 1-point difference). Key differences: the Redmi 15 has the bigger battery (7000 mAh vs 6000); the Vivo Y400 4G is noticeably lighter (197g vs 214g).
Profile comparison
Category scores
Redmi 15
Vivo Y400 4G
What makes Redmi 15 better?
- Bigger battery: 7000 vs 6000 mAh
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $180 vs $200
- Longer battery life (58/100 vs 56/100)
What makes Vivo Y400 4G better?
- Faster charging: 44W vs 33W
- Lighter: 197g vs 214g
- Better display (79/100 vs 74/100)
- Better portability (62/100 vs 46/100)
Comparison verdict
Comparing the Redmi 15 vs the Vivo Y400 4G, the Vivo Y400 4G scores 1 points higher (44/100 vs 43/100). Value score: Redmi 15 — 52/100, Vivo Y400 4G — 48/100; 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, both devices are on the same level — 34/100. In the "display" category, the Vivo Y400 4G is a bit better (79/100 vs 74/100). In the "camera" category, both devices are on the same level — 30/100. In the "battery" category, the Redmi 15 and the Vivo Y400 4G are nearly equal (58/100 vs 56/100). In the "portability" category, the Vivo Y400 4G notably outperforms the Redmi 15 (62/100 vs 46/100).
Specs comparison
| Specification | Redmi 15 | Vivo Y400 4G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 685 | |
| AnTuTu | 476175 | 476175 | |
| Geekbench Single | 466 | 466 | |
| Geekbench Multi | 1396 | 1396 | |
| Display | 6.9" IPS LCD | 6.7" AMOLED | |
| Resolution | 2340x1080 | 1080x2400 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 6000 mAh | |
| Charging | 33W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Front camera | 8 MP | 8 MP | |
| RAM | 6GB / 8GB | 8GB | |
| Storage | 128GB / 256GB | 128GB / 256GB | |
| OS | Xiaomi HyperOS 2 | Android 15 | |
| Brightness (peak) | 850 nits | 1800 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP69 | |
| Dimensions | 169.5×80.5×8.4 mm | 162.3×75.3×7.9 mm | |
| Weight | 214 g | 197 g | |
| Launch price | $180 | $200 |
Camera comparison
Redmi 15
- Main: 50MP f/1.8
- Front: 8MP
Vivo Y400 4G
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Redmi 15
- 6.9" IPS LCD
- Resolution: 2340x1080
- Refresh rate: 144 Hz
Vivo Y400 4G
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Battery and charging
Redmi 15
- 7000 mAh
- Wired: 33W
- No wireless charging
Vivo Y400 4G
- 6000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi 15 and Vivo Y400 4G, covering their specs and all relevant benchmarks.
Equal performance based on benchmark results.
Benchmarks
Launch prices and where to check today's
Launch price difference: $20. Redmi 15 was $20 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, both devices are on the same level — 34/100.
display
In the "display" category, the Vivo Y400 4G is a bit better (79/100 vs 74/100).
camera
In the "camera" category, both devices are on the same level — 30/100.
battery
In the "battery" category, the Redmi 15 and the Vivo Y400 4G are nearly equal (58/100 vs 56/100).
portability
In the "portability" category, the Vivo Y400 4G notably outperforms the Redmi 15 (62/100 vs 46/100).
Frequently asked questions
Which is better: the Redmi 15 or the Vivo Y400 4G?
The Vivo Y400 4G edges out the Redmi 15 by just 1 points — the two devices are very close in overall level.
What is the rating of the Redmi 15 and the Vivo Y400 4G?
The Redmi 15 has a MobileRank rating of 43/100, the Vivo Y400 4G — 44/100.
Should you choose the Redmi 15 over the Vivo Y400 4G?
Neither model stands out enough to recommend it for a specific use case: the clearest difference is portability — better on the Vivo Y400 4G (62/100 vs 46/100).