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 29/100 (a 53-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 (3,815,522 vs 232,802); the Vivo iQOO 15T has NFC for contactless payments, the Vivo X21i doesn't; the Vivo X21i is noticeably lighter (159g vs 216g).
Vivo iQOO 15T
Vivo X21i
- Higher AnTuTu: 3815522 vs 232802
- Better Geekbench Single: 3228 vs 341
- Better Geekbench Multi: 9553 vs 779
- Bigger battery: 8000 vs 3425 mAh
- Better main camera: 200MP vs 12MP
- Higher performance (95/100 vs 17/100)
- Better camera (65/100 vs 15/100)
- Longer battery life (75/100 vs 15/100)
- Better display (99/100 vs 82/100)
- Lighter: 159g vs 216g
- Better portability (94/100 vs 44/100)
Comparing the Vivo iQOO 15T vs the Vivo X21i, the Vivo iQOO 15T scores 53 points higher (82/100 vs 29/100). In the "performance" category, the Vivo iQOO 15T leads (95/100 vs 17/100). 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 (95/100 vs 17/100). 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).
| Specification | Vivo iQOO 15T | Vivo X21i | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Helio P60 | |
| AnTuTu | 3815522 | 232802 | |
| Geekbench Single | 3228 | 341 | |
| Geekbench Multi | 9553 | 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 | — |
Vivo iQOO 15T
- Main: 200MP f/f/1.8
- Ultrawide: 50MP
- Front: 16MP
Vivo X21i
- Main: 12MP f/f/1.8
- Front: 24MP
Vivo iQOO 15T
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo X21i
- 6.3" Super AMOLED
- Resolution: 1080x2280
- Refresh rate: —
Vivo iQOO 15T
- 8000 mAh
- Wired: 100W
- No wireless charging
Vivo X21i
- 3425 mAh
- Wireless charging: no data
We compared Vivo iQOO 15T and Vivo X21i, covering their specs and all relevant benchmarks.
Vivo iQOO 15T leads Vivo X21i by 1539.0% in our overall performance rating.
Vivo X21i
Price unknownperformance
In the "performance" category, the Vivo iQOO 15T significantly outperforms the Vivo X21i (95/100 vs 17/100).
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).
Which is better: the Vivo iQOO 15T or the Vivo X21i?
The Vivo iQOO 15T significantly outperforms the Vivo X21i by 53 points (82/100 vs 29/100).
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 — 29/100.
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 (95/100 vs 17/100).
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. The Vivo X21i is a better fit for everyday use.