Vivo iQOO 15T vs Vivo X21i
The Vivo iQOO 15T (2026) runs on the MediaTek Dimensity 9500, while the Vivo X21i (2018) runs on the MediaTek Helio P60. By overall MobileRank rating, the Vivo iQOO 15T leads — 82/100 vs 30/100 (a 52-point difference). Key differences: the Vivo iQOO 15T has the bigger battery (8000 mAh vs 3425); the main camera is 200 MP vs 12 MP; the Vivo iQOO 15T is faster in AnTuTu (4,704,310 vs 314,537); the Vivo iQOO 15T has NFC for contactless payments, the Vivo X21i doesn't; the Vivo X21i is noticeably lighter (159g vs 216g).
Profile comparison
Category scores
Vivo iQOO 15T
Vivo X21i
What makes Vivo iQOO 15T better?
- Higher AnTuTu: 4704310 vs 314537
- Better Geekbench Single: 3293 vs 341
- Better Geekbench Multi: 10243 vs 779
- Bigger battery: 8000 vs 3425 mAh
- Better main camera: 200MP vs 12MP
- Higher performance (97/100 vs 20/100)
- Better camera (65/100 vs 15/100)
- Longer battery life (75/100 vs 15/100)
- Better display (99/100 vs 82/100)
What makes Vivo X21i better?
- Lighter: 159g vs 216g
- Better portability (94/100 vs 44/100)
Comparison verdict
Comparing the Vivo iQOO 15T vs the Vivo X21i, the Vivo iQOO 15T scores 52 points higher (82/100 vs 30/100). In the "performance" category, the Vivo iQOO 15T leads (97/100 vs 20/100). In the "camera" category, the Vivo iQOO 15T leads (65/100 vs 15/100). In the "battery" category, the Vivo iQOO 15T leads (75/100 vs 15/100). In the "performance" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (97/100 vs 20/100). In the "display" category, the Vivo iQOO 15T notably outperforms the Vivo X21i (99/100 vs 82/100). In the "camera" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (65/100 vs 15/100). In the "battery" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (75/100 vs 15/100). In the "portability" category, the Vivo X21i significantly outperforms the Vivo iQOO 15T (94/100 vs 44/100).
Specs comparison
| Specification | Vivo iQOO 15T | Vivo X21i | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Helio P60 | |
| AnTuTu | 4704310 | 314537 | |
| Geekbench Single | 3293 | 341 | |
| Geekbench Multi | 10243 | 779 | |
| Display | 6.8" LTPO AMOLED | 6.3" Super AMOLED | |
| Resolution | 1440x3168 | 1080x2280 | |
| Refresh rate | 144 Hz | — | |
| Battery | 8000 mAh | 3425 mAh | |
| Charging | 100W | — | |
| Main camera | 200 MP | 12 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Front camera | 16 MP | 24 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 16 | Android 8.1 (Oreo); Funtouch 4 | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | — | 154.4×75.0×7.0 mm | |
| Weight | 216 g | 159 g | |
| Launch price | $499 | — |
Camera comparison
Vivo iQOO 15T
- Main: 200MP f/1.8
- Ultrawide: 50MP
- Front: 16MP
Vivo X21i
- Main: 12MP f/1.8
- Front: 24MP
Display comparison
Vivo iQOO 15T
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo X21i
- 6.3" Super AMOLED
- Resolution: 1080x2280
- Refresh rate: —
Battery and charging
Vivo iQOO 15T
- 8000 mAh
- Wired: 100W
- No wireless charging
Vivo X21i
- 3425 mAh
- Wireless charging: no data
Overall performance score
We compared Vivo iQOO 15T and Vivo X21i, covering their specs and all relevant benchmarks.
Vivo iQOO 15T leads Vivo X21i by 1395.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo X21i
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (97/100 vs 20/100).
display
In the "display" category, the Vivo iQOO 15T notably outperforms the Vivo X21i (99/100 vs 82/100).
camera
In the "camera" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (65/100 vs 15/100).
battery
In the "battery" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (75/100 vs 15/100).
portability
In the "portability" category, the Vivo X21i significantly outperforms the Vivo iQOO 15T (94/100 vs 44/100).
Frequently asked questions
Which is better: the Vivo iQOO 15T or the Vivo X21i?
The Vivo iQOO 15T significantly outperforms the Vivo X21i by 52 points (82/100 vs 30/100).
What is the rating of the Vivo iQOO 15T and the Vivo X21i?
The Vivo iQOO 15T has a MobileRank rating of 82/100, the Vivo X21i — 30/100.
Which has the better camera: the Vivo iQOO 15T or the Vivo X21i?
The Vivo iQOO 15T leads on camera score (65/100 vs 15/100).
Which is more powerful: the Vivo iQOO 15T or the Vivo X21i?
The Vivo iQOO 15T leads on performance (97/100 vs 20/100).
Should you choose the Vivo iQOO 15T over the Vivo X21i?
The Vivo iQOO 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.