Infinix Smart 20 vs Vivo iQOO 15 Ultra
The Infinix Smart 20 (2026) runs on the MediaTek Helio G81 Ultimate, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $149 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 33/100 (a 56-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5200); the main camera is 8 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 358,383).
Infinix Smart 20
Vivo iQOO 15 Ultra
- Cheaper at launch: $149 vs $799
- Better portability (68/100 vs 35/100)
- Higher AnTuTu: 4602290 vs 358383
- Better Geekbench Single: 3640 vs 432
- Better Geekbench Multi: 11033 vs 1416
- Bigger battery: 7400 vs 5200 mAh
- Faster charging: 120W vs 15W
- Better main camera: 50MP vs 8MP
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 30/100)
- Better camera (78/100 vs 10/100)
- Longer battery life (92/100 vs 48/100)
- Better display (99/100 vs 55/100)
Comparing the Infinix Smart 20 vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 56 points higher (89/100 vs 33/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 30/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 48/100). Value score: Infinix Smart 20 — 42/100, Vivo iQOO 15 Ultra — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (99/100 vs 30/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (92/100 vs 48/100). In the "portability" category, the Infinix Smart 20 significantly outperforms the Vivo iQOO 15 Ultra (68/100 vs 35/100).
| Specification | Infinix Smart 20 | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G81 Ultimate | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 358383 | 4602290 | |
| Geekbench Single | 432 | 3640 | |
| Geekbench Multi | 1416 | 11033 | |
| Display | 6.8" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 1576x720 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 5200 mAh | 7400 mAh | |
| Charging | 15W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 8 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB | 12GB / 16GB / 24GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 700 nits | 8000 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 167.7×78.8×7.7 mm | 163.7×76.8×8.7 mm | |
| Weight | — | 227 g | |
| Launch price | $149 | $799 |
Infinix Smart 20
- Main: 8MP f/f/2.0
- Front: 8MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Infinix Smart 20
- 6.8" IPS LCD
- Resolution: 1576x720
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Infinix Smart 20
- 5200 mAh
- Wired: 15W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared Infinix Smart 20 and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Infinix Smart 20 by 92.2% in our overall performance rating.
Launch price difference: $650. Infinix Smart 20 was $650 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (99/100 vs 30/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (99/100 vs 55/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (78/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 (92/100 vs 48/100).
portability
In the "portability" category, the Infinix Smart 20 significantly outperforms the Vivo iQOO 15 Ultra (68/100 vs 35/100).
Which is better: the Infinix Smart 20 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 20 by 56 points (89/100 vs 33/100).
What is the rating of the Infinix Smart 20 and the Vivo iQOO 15 Ultra?
The Infinix Smart 20 has a MobileRank rating of 33/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Infinix Smart 20 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 10/100).
Which is more powerful: the Infinix Smart 20 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 30/100).
Should you choose the Infinix Smart 20 over the Vivo iQOO 15 Ultra?
The Infinix Smart 20 is a better fit for everyday use. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.