Infinix Zero 40 5GvsRedmi A3
SETTLEDUpdated September 8, 2026
Infinix Zero 40 5G wins
Verdict
Infinix Zero 40 5G wins 4 of 5 categories — our overall pick
Infinix Zero 40 5G is the overall winner, 4 / 5 — display is its standout. It costs USD 349 — USD 260 more than the Redmi A3. Pay the premium if display is your priority.
- Infinix Zero 40 5G takes Performance — led by ram (12 GB).
- Infinix Zero 40 5G takes Display — led by refresh rate (144 Hz).
- Infinix Zero 40 5G takes Camera — led by selfie camera (50 MP).
- Infinix Zero 40 5G takes Battery — led by charging speed (45 W).
- Redmi A3 takes Price — led by price (89 USD).
Scores follow our published methodology · v2026.09
In plain English
Choose Infinix Zero 40 5G if you want…
- Choose Infinix Zero 40 5G if you want a faster phone for apps and games — 950,000 pts vs 130,000 pts.
- Choose Infinix Zero 40 5G if you want more apps open at once — 12 GB vs 4 GB.
- Choose Infinix Zero 40 5G if you want more room for photos and apps — 256 GB vs 128 GB.
- Choose Infinix Zero 40 5G if you want a bigger screen — 6.78 in vs 6.71 in.
- Choose Infinix Zero 40 5G if you want a sharper screen — 393 ppi vs 268 ppi.
- Choose Infinix Zero 40 5G if you want smoother scrolling — 144 Hz vs 90 Hz.
- Choose Infinix Zero 40 5G if you want a screen you can read in sunlight — 1,300 nits vs 500 nits.
- Choose Infinix Zero 40 5G if you want sharper selfies — 50 MP vs 5 MP.
- Choose Infinix Zero 40 5G if you want better video quality — 66 pts vs 32 pts.
- Choose Infinix Zero 40 5G if you want a better camera — 102 pts vs 52 pts.
- Choose Infinix Zero 40 5G if you want faster charging — 45 W vs 10 W.
Choose Redmi A3 if you want…
- Choose Redmi A3 if you want a lower price — 89 USD vs 349 USD.
At a glance
- Infinix Zero 40 5G
- Redmi A3
Click a label to jump to that section ↓
Best price now
The cheap alternative
Full record
Every spec, side by side — winners get a check and a proportional bar. Ties share the badge.
Performance score
Approximate benchmark score of the chipset — higher is faster for apps, games and AI.
Chipset
The processor inside — shown for reference, never decides a winner.
RAM
More RAM keeps more apps alive in the background.
Storage
Base onboard storage for photos, apps and media.
Screen size
Diagonal screen size — bigger is better for media, smaller is easier to hold.
Pixel density
Sharpness of the screen — above ~400 ppi looks crisp.
Refresh rate
How smooth scrolling and motion feel. 120 Hz is the modern standard.
Peak brightness
Peak brightness in sunlight — higher stays readable outdoors.
Main camera
Resolution of the primary rear camera — photo quality is judged by the Camera quality score, not megapixels.
Selfie camera
Resolution of the front camera.
Telephoto
A dedicated zoom lens for distant subjects without quality loss.
Video score
Composite video rating — stabilisation, 4K/8K support and colour.
Camera score
Composite camera quality from independent testing — how good the photos actually are.
Battery
Battery capacity — higher generally lasts longer.
Charging speed
Wired charging speed — higher refills faster.
Wireless charging
Whether the phone charges wirelessly.
Price
Typical MSRP in US dollars — lower is better value.
Which one should you buy?
Infinix Zero 40 5G
Choose Infinix Zero 40 5G if display matters most — it wins the most categories overall. It costs USD 349.
Redmi A3
Choose Redmi A3 if price matters most. It costs USD 89, the lowest price in this group.
Pros & cons
Infinix Zero 40 5G
- 144 Hz curved AMOLED
- 108 MP camera with OIS
- 50 MP selfie
- Dimensity 8200 is mid-tier
- No telephoto
- Limited software updates
Redmi A3
- Very cheap
- 5,000 mAh battery
- 90 Hz display
- Very slow chip
- 8 MP camera is weak
- 10 W charging