Infinix Smart 20 vs Realme P4x
The Infinix Smart 20 (2026) runs on the MediaTek Helio G81 Ultimate, while the Realme P4x (2025) runs on the MediaTek Dimensity 7400 Ultra; launch prices were $149 and $190. By overall MobileRank rating, the Realme P4x leads — 53/100 vs 33/100 (a 20-point difference). Key differences: the Realme P4x has the bigger battery (7000 mAh vs 5200); the main camera is 8 MP vs 50 MP; the Realme P4x is faster in AnTuTu (941,780 vs 358,608); the Infinix Smart 20 has NFC for contactless payments, the Realme P4x doesn't.
Profile comparison
Category scores
Infinix Smart 20
Realme P4x
What makes Infinix Smart 20 better?
- Cheaper at launch: $149 vs $190
- Better portability (68/100 vs 50/100)
What makes Realme P4x better?
- Higher AnTuTu: 941780 vs 358608
- Better Geekbench Single: 1050 vs 432
- Better Geekbench Multi: 2939 vs 1416
- Bigger battery: 7000 vs 5200 mAh
- Faster charging: 45W vs 15W
- Better main camera: 50MP vs 8MP
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (57/100 vs 30/100)
- Better camera (30/100 vs 10/100)
- Longer battery life (60/100 vs 48/100)
- Better display (76/100 vs 55/100)
Comparison verdict
Comparing the Infinix Smart 20 vs the Realme P4x, the Realme P4x scores 20 points higher (53/100 vs 33/100). In the "performance" category, the Realme P4x leads (57/100 vs 30/100). In the "camera" category, the Realme P4x leads (30/100 vs 10/100). In the "battery" category, the Realme P4x leads (60/100 vs 48/100). Value score: Infinix Smart 20 — 40/100, Realme P4x — 70/100; 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 Realme P4x notably outperforms the Infinix Smart 20 (57/100 vs 30/100). In the "display" category, the Realme P4x notably outperforms the Infinix Smart 20 (76/100 vs 55/100). In the "camera" category, the Realme P4x notably outperforms the Infinix Smart 20 (30/100 vs 10/100). In the "battery" category, the Realme P4x is a bit better (60/100 vs 48/100). In the "portability" category, the Infinix Smart 20 notably outperforms the Realme P4x (68/100 vs 50/100).
Specs comparison
| Specification | Infinix Smart 20 | Realme P4x | |
|---|---|---|---|
| Processor | MediaTek Helio G81 Ultimate | MediaTek Dimensity 7400 Ultra | |
| AnTuTu | 358608 | 941780 | |
| Geekbench Single | 432 | 1050 | |
| Geekbench Multi | 1416 | 2939 | |
| Display | 6.8" IPS LCD | 6.7" IPS LCD | |
| Resolution | 1576x720 | 1080x2400 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 5200 mAh | 7000 mAh | |
| Charging | 15W | 45W | |
| Main camera | 8 MP | 50 MP | |
| Front camera | 8 MP | 8 MP | |
| RAM | 4GB | 6GB / 8GB | |
| Storage | 64GB / 128GB | 128GB / 256GB / 512GB | |
| OS | Android 16 | Android 15, Realme UI 6.0 | |
| Brightness (peak) | 700 nits | 1000 nits | |
| NFC | yes | no | |
| Protection | IP64 | IP64 | |
| Dimensions | 167.7×78.8×7.7 mm | 165.9×76.0×8.4 mm | |
| Weight | — | 208 g | |
| Launch price | $149 | $190 |
Camera comparison
Infinix Smart 20
- Main: 8MP f/2.0
- Front: 8MP
Realme P4x
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Infinix Smart 20
- 6.8" IPS LCD
- Resolution: 1576x720
- Refresh rate: 120 Hz
Realme P4x
- 6.7" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 144 Hz
Battery and charging
Infinix Smart 20
- 5200 mAh
- Wired: 15W
- No wireless charging
Realme P4x
- 7000 mAh
- Wired: 45W
- No wireless charging
Overall performance score
We compared Infinix Smart 20 and Realme P4x, covering their specs and all relevant benchmarks.
Realme P4x leads Infinix Smart 20 by 61.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $41. Infinix Smart 20 was $41 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Realme P4x notably outperforms the Infinix Smart 20 (57/100 vs 30/100).
display
In the "display" category, the Realme P4x notably outperforms the Infinix Smart 20 (76/100 vs 55/100).
camera
In the "camera" category, the Realme P4x notably outperforms the Infinix Smart 20 (30/100 vs 10/100).
battery
In the "battery" category, the Realme P4x is a bit better (60/100 vs 48/100).
portability
In the "portability" category, the Infinix Smart 20 notably outperforms the Realme P4x (68/100 vs 50/100).
Frequently asked questions
Which is better: the Infinix Smart 20 or the Realme P4x?
The Realme P4x significantly outperforms the Infinix Smart 20 by 20 points (53/100 vs 33/100).
What is the rating of the Infinix Smart 20 and the Realme P4x?
The Infinix Smart 20 has a MobileRank rating of 33/100, the Realme P4x — 53/100.
Which has the better camera: the Infinix Smart 20 or the Realme P4x?
The Realme P4x leads on camera score (30/100 vs 10/100).
Which is more powerful: the Infinix Smart 20 or the Realme P4x?
The Realme P4x leads on performance (57/100 vs 30/100).
Should you choose the Infinix Smart 20 over the Realme P4x?
Neither model stands out enough to recommend it for a specific use case: the clearest difference is performance — better on the Realme P4x (57/100 vs 30/100).