Vivo iQOO 15 vs Vivo Y400 4G
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y400 4G (2025) runs on the Qualcomm Snapdragon 685; launch prices were $599 and $200. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 44/100 (a 42-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 6000); the Vivo iQOO 15 is faster in AnTuTu (3,758,268 vs 476,175); the Vivo Y400 4G is noticeably lighter (197g vs 215g).
Profile comparison
Category scores
Vivo iQOO 15
Vivo Y400 4G
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 476175
- Better Geekbench Single: 3013 vs 466
- Better Geekbench Multi: 9287 vs 1396
- Bigger battery: 7000 vs 6000 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (94/100 vs 34/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (85/100 vs 56/100)
- Better display (99/100 vs 79/100)
What makes Vivo Y400 4G better?
- Lighter: 197g vs 215g
- Cheaper at launch: $200 vs $599
- Better portability (62/100 vs 48/100)
Comparison verdict
Comparing the Vivo iQOO 15 vs the Vivo Y400 4G, the Vivo iQOO 15 scores 42 points higher (86/100 vs 44/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 34/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 56/100). Value score: Vivo iQOO 15 — 86/100, 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, the Vivo iQOO 15 significantly outperforms the Vivo Y400 4G (94/100 vs 34/100). In the "display" category, the Vivo iQOO 15 notably outperforms the Vivo Y400 4G (99/100 vs 79/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Y400 4G (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo Y400 4G (85/100 vs 56/100). In the "portability" category, the Vivo Y400 4G is a bit better (62/100 vs 48/100).
Specs comparison
| Specification | Vivo iQOO 15 | Vivo Y400 4G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 685 | |
| AnTuTu | 3758268 | 476175 | |
| Geekbench Single | 3013 | 466 | |
| Geekbench Multi | 9287 | 1396 | |
| Display | 6.8" LTPO AMOLED | 6.7" AMOLED | |
| Resolution | 1440x3168 | 1080x2400 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 6000 mAh | |
| Charging | 100W | 44W | |
| Wireless charging | 40W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 8 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 6000 nits | 1800 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP69 | |
| Dimensions | 163.7×76.8×8.1 mm | 162.3×75.3×7.9 mm | |
| Weight | 215 g | 197 g | |
| Launch price | $599 | $200 |
Camera comparison
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y400 4G
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y400 4G
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Vivo Y400 4G
- 6000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 and Vivo Y400 4G, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo Y400 4G by 689.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $399. Vivo Y400 4G was $399 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Vivo Y400 4G (94/100 vs 34/100).
display
In the "display" category, the Vivo iQOO 15 notably outperforms the Vivo Y400 4G (99/100 vs 79/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Y400 4G (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo Y400 4G (85/100 vs 56/100).
portability
In the "portability" category, the Vivo Y400 4G is a bit better (62/100 vs 48/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 or the Vivo Y400 4G?
The Vivo iQOO 15 significantly outperforms the Vivo Y400 4G by 42 points (86/100 vs 44/100).
What is the rating of the Vivo iQOO 15 and the Vivo Y400 4G?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Vivo Y400 4G — 44/100.
Which has the better camera: the Vivo iQOO 15 or the Vivo Y400 4G?
The Vivo iQOO 15 leads on camera score (78/100 vs 30/100).
Which is more powerful: the Vivo iQOO 15 or the Vivo Y400 4G?
The Vivo iQOO 15 leads on performance (94/100 vs 34/100).
Should you choose the Vivo iQOO 15 over the Vivo Y400 4G?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.