Infinix Smart 4 vs Vivo iQOO 15 Ultra
The Infinix Smart 4 (2019) runs on the MediaTek Helio A22, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 20/100 (a 69-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 4000); the main camera is 8 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 155,362); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Infinix Smart 4 doesn't; the Infinix Smart 4 is noticeably lighter (183g vs 227g).
Profile comparison
Category scores
Infinix Smart 4
Vivo iQOO 15 Ultra
What makes Infinix Smart 4 better?
- Lighter: 183g vs 227g
- Better portability (66/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 155362
- Better Geekbench Single: 3639 vs 300
- Better Geekbench Multi: 11047 vs 486
- Bigger battery: 7400 vs 4000 mAh
- Better main camera: 50MP vs 8MP
- Higher performance (99/100 vs 10/100)
- Better camera (78/100 vs 10/100)
- Longer battery life (92/100 vs 32/100)
- Better display (99/100 vs 38/100)
Comparison verdict
Comparing the Infinix Smart 4 vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 69 points higher (89/100 vs 20/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 10/100). 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 32/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (99/100 vs 10/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (99/100 vs 38/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (92/100 vs 32/100). In the "portability" category, the Infinix Smart 4 significantly outperforms the Vivo iQOO 15 Ultra (66/100 vs 35/100).
Specs comparison
| Specification | Infinix Smart 4 | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio A22 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 155362 | 4602290 | |
| Geekbench Single | 300 | 3639 | |
| Geekbench Multi | 486 | 11047 | |
| Display | 6.6" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 720x1600 | 1440x3168 | |
| Refresh rate | — | 144 Hz | |
| Battery | 4000 mAh | 7400 mAh | |
| Charging | — | 120W | |
| Wireless charging | — | 50W | |
| Main camera | 8 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 32 MP | |
| RAM | 1GB | 12GB / 16GB / 24GB | |
| Storage | — | 256GB / 512GB / 1TB | |
| OS | Android 9.0 Pie (Go edition) | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 167.0×76.0×8.3 mm | 163.7×76.8×8.7 mm | |
| Weight | 183 g | 227 g | |
| Launch price | — | $799 |
Camera comparison
Infinix Smart 4
- Main: 8MP
- Front: 5MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Infinix Smart 4
- 6.6" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Infinix Smart 4
- 4000 mAh
- Wireless charging: no data
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Infinix Smart 4 and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Infinix Smart 4 by 96.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Infinix Smart 4
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (99/100 vs 10/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (99/100 vs 38/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (78/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 (92/100 vs 32/100).
portability
In the "portability" category, the Infinix Smart 4 significantly outperforms the Vivo iQOO 15 Ultra (66/100 vs 35/100).
Frequently asked questions
Which is better: the Infinix Smart 4 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Infinix Smart 4 by 69 points (89/100 vs 20/100).
What is the rating of the Infinix Smart 4 and the Vivo iQOO 15 Ultra?
The Infinix Smart 4 has a MobileRank rating of 20/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Infinix Smart 4 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 4 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 10/100).
Should you choose the Infinix Smart 4 over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.