Redmi Note 4X vs Vivo iQOO 15T
The Redmi Note 4X (2017) runs on the Qualcomm Snapdragon 625, while the Vivo iQOO 15T (2026) runs on the MediaTek Dimensity 9500; launch prices were $160 and $499. By overall MobileRank rating, the Vivo iQOO 15T leads — 82/100 vs 22/100 (a 60-point difference). Key differences: the Vivo iQOO 15T has the bigger battery (8000 mAh vs 4100); the main camera is 13 MP vs 200 MP; the Vivo iQOO 15T is faster in AnTuTu (4,704,310 vs 218,879); the Vivo iQOO 15T has NFC for contactless payments, the Redmi Note 4X doesn't; the Redmi Note 4X is noticeably lighter (165g vs 216g).
Profile comparison
Category scores
Redmi Note 4X
Vivo iQOO 15T
What makes Redmi Note 4X better?
- Lighter: 165g vs 216g
- Cheaper at launch: $160 vs $499
- Better portability (74/100 vs 44/100)
What makes Vivo iQOO 15T better?
- Higher AnTuTu: 4704310 vs 218879
- Better Geekbench Single: 3293 vs 189
- Better Geekbench Multi: 10243 vs 862
- Bigger battery: 8000 vs 4100 mAh
- Better main camera: 200MP vs 13MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (97/100 vs 14/100)
- Better camera (65/100 vs 10/100)
- Longer battery life (75/100 vs 35/100)
- Better display (99/100 vs 32/100)
Comparison verdict
Comparing the Redmi Note 4X vs the Vivo iQOO 15T, the Vivo iQOO 15T scores 60 points higher (82/100 vs 22/100). In the "performance" category, the Vivo iQOO 15T leads (97/100 vs 14/100). In the "camera" category, the Vivo iQOO 15T leads (65/100 vs 10/100). In the "battery" category, the Vivo iQOO 15T leads (75/100 vs 35/100). Value score: Redmi Note 4X — 16/100, Vivo iQOO 15T — 86/100; 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 15T significantly outperforms the Redmi Note 4X (97/100 vs 14/100). In the "display" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (99/100 vs 32/100). In the "camera" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (65/100 vs 10/100). In the "battery" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (75/100 vs 35/100). In the "portability" category, the Redmi Note 4X significantly outperforms the Vivo iQOO 15T (74/100 vs 44/100).
Specs comparison
| Specification | Redmi Note 4X | Vivo iQOO 15T | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 625 | MediaTek Dimensity 9500 | |
| AnTuTu | 218879 | 4704310 | |
| Geekbench Single | 189 | 3293 | |
| Geekbench Multi | 862 | 10243 | |
| Display | 5.5" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | — | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 4100 mAh | 8000 mAh | |
| Charging | — | 100W | |
| Main camera | 13 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Front camera | 5 MP | 16 MP | |
| RAM | 3GB / 4GB | 12GB / 16GB | |
| Storage | 32GB / 64GB | 256GB / 512GB / 1TB | |
| OS | — | Android 16 | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 151.0×76.0×8.5 mm | — | |
| Weight | 165 g | 216 g | |
| Launch price | $160 | $499 |
Camera comparison
Redmi Note 4X
- Main: 13MP
- Front: 5MP
Vivo iQOO 15T
- Main: 200MP f/1.8
- Ultrawide: 50MP
- Front: 16MP
Display comparison
Redmi Note 4X
- 5.5" IPS LCD
- Refresh rate: 60 Hz
Vivo iQOO 15T
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Redmi Note 4X
- 4100 mAh
- Wireless charging: no data
Vivo iQOO 15T
- 8000 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi Note 4X and Vivo iQOO 15T, covering their specs and all relevant benchmarks.
Vivo iQOO 15T leads Redmi Note 4X by 95.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $339. Redmi Note 4X was $339 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (97/100 vs 14/100).
display
In the "display" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (99/100 vs 32/100).
camera
In the "camera" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (65/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15T significantly outperforms the Redmi Note 4X (75/100 vs 35/100).
portability
In the "portability" category, the Redmi Note 4X significantly outperforms the Vivo iQOO 15T (74/100 vs 44/100).
Frequently asked questions
Which is better: the Redmi Note 4X or the Vivo iQOO 15T?
The Vivo iQOO 15T significantly outperforms the Redmi Note 4X by 60 points (82/100 vs 22/100).
What is the rating of the Redmi Note 4X and the Vivo iQOO 15T?
The Redmi Note 4X has a MobileRank rating of 22/100, the Vivo iQOO 15T — 82/100.
Which has the better camera: the Redmi Note 4X or the Vivo iQOO 15T?
The Vivo iQOO 15T leads on camera score (65/100 vs 10/100).
Which is more powerful: the Redmi Note 4X or the Vivo iQOO 15T?
The Vivo iQOO 15T leads on performance (97/100 vs 14/100).
Should you choose the Redmi Note 4X over the Vivo iQOO 15T?
The Vivo iQOO 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.