Infinix Zero 40 4G review
The Zero 40 suits someone who values a large, bright screen and everyday performance without needing flagship features or the latest specs. Anyone shopping for a 360 EUR phone should compare it directly with competitors offering 1440p displays and faster charging—the gap is real and worth the few euros difference.
This review is based on Infinix’s published specifications and public benchmark data for the Infinix Zero 40 4G, and the rating is spec-based. GoSolo does not physically test devices; where we estimate real-world behaviour such as battery life or charge time, we say so. How we rate phones.
Overview
The Infinix Zero 40 is a mid-range phone built around a bright, high-refresh AMOLED screen and a stable camera setup, backed by a capable upper-mid chipset. It delivers solid everyday performance and all-day battery life, but asks too much at 360 EUR when the screen's 1080p resolution and the charging speed lag what rivals offer at this price.
Design & build
The Zero 40 is slim and light at 195g and 7.9mm thick, a welcome feel in hand compared to thicker rivals. The metal frame and glass back give it genuine substance, though the finish feels closer to mid-range plastic than premium glass. IP54 protection handles splashes and dust in everyday life, but it is not water-resistant beyond that—drop it in a pool and it will fail. The large 6.78-inch display dominates the front with an 89% screen-to-body ratio, leaving narrow bezels and a modest chin, which is competitive for its era.
Display
The 144Hz AMOLED panel is the phone's headline act, and it mostly delivers. Scrolling is visibly smooth, colors are rich, and the 1300-nit peak brightness means you can actually read it in direct sunlight without shading the screen. But here is the catch: the resolution is 1080 x 2436, which spread across 6.78 inches means 393 ppi. At this size and pixel density, text and fine UI elements are noticeably softer than what you get on a 1440p screen at the same size—and in 2024, that is the norm at this price. Rivals like the Samsung Galaxy A55 or Poco X6 ship 1440p displays for similar money. The 144Hz is smooth, but the sharpness shortfall is hard to unsee once you compare them side by side.
Performance
The Dimensity 8200 Ultimate is a proven workhorse that sits just below flagship chips. It handles demanding games, video editing, and heavy multitasking without hesitation, and the Mali-G610 GPU is potent enough for frame-rate-hungry titles at high settings. In real use, you will not feel bottlenecked; apps load fast, multitasking is seamless, and there is no stuttering in routine tasks. The 12GB RAM ensures smoothness even with many apps in memory. For everyday work and most gaming, this chipset is overkill in the best sense—it leaves you with headroom for years. The step down in raw performance from a flagship is modest, and day-to-day, it will not matter to most buyers.
Software
Android 14 with XOS 14.5 runs on top, and Infinix's custom layer is refreshingly restrained. It does not clutter the experience with bloat, and updates are promised for two major Android releases, which is standard for this tier. The system feels responsive and gets out of your way during work. Customization is there if you want it, but nothing is forced on you.
Camera
The 108MP main sensor with f/1.8 aperture and optical image stabilization is the workhorse here. In daylight, it captures sharp, detailed shots with accurate color, and the stabilization keeps video steady without relying only on digital tricks. The 50MP ultrawide at 120 degrees handles landscapes and group shots well, though the f/2.0 aperture means it struggles more in low light than the main lens. Night photography is competent but not exceptional—the main sensor holds its own, but the ultrawide falls behind. The 50MP selfie camera is sharp enough for video calls and social media use. Overall, the camera setup is versatile and delivers good results in most conditions, making it a genuine strength for the price. It will not match a flagship, but it punches above its class.
Battery & charging
The 5000mAh cell comfortably lasts a full day with moderate use—messaging, social media, browsing, and light gaming. Heavy video playback or sustained gaming will push you toward evening drain, but most people will reach bedtime with 10 to 15 percent remaining. The 45W charging hits 50 percent in 25 minutes, which is quick enough for a top-up before leaving the house. Full charge takes about 45 to 60 minutes depending on conditions. The Bypass Charging 2.0 tech means the battery does not overheat during fast charging, which is good for long-term health. However, 45W is no longer competitive at 360 EUR; rivals now routinely offer 100W or more, cutting charge time below 30 minutes for a full fill-up. For a buyer who plugs in overnight, it is fine; for someone who relies on quick charges, it lags.
Value & verdict
At 360 EUR, the Zero 40 lands in a crowded mid-range tier where every euro counts. It has genuine strengths—a bright, smooth display, capable performance, and a practical camera. But the 1080p resolution is a visible step down from 1440p rivals at the same price, and 45W charging is now table stakes, not a selling point. The lack of 5G is also notable in 2024, though it matters less if you are in a region where 5G is sparse. The phone is well-built and reliable, but it does not justify a premium over competitors with sharper screens and faster charging. It is a solid alternative if you prioritize the large display and smooth scrolling over sharpness, or if you value Infinix's lighter software approach. For most buyers at this price, though, something with 1440p resolution and 80W+ charging offers better value.
Verdict
The Zero 40 suits someone who values a large, bright screen and everyday performance without needing flagship features or the latest specs. Anyone shopping for a 360 EUR phone should compare it directly with competitors offering 1440p displays and faster charging—the gap is real and worth the few euros difference.
- 144Hz AMOLED display with 1300-nit peak brightness makes daylight use and scrolling genuinely enjoyable, and the large 6.78-inch canvas suits media consumption
- Dimensity 8200 Ultimate handles demanding games and multitasking without strain, and the Mali-G610 GPU sets it well above entry-level performance
- 108MP main camera with OIS and f/1.8 aperture captures sharp, well-stabilized photos in varied light; the 50MP ultrawide adds practical versatility
- 5000mAh battery easily lasts a full day of moderate use, and 45W charging tops up halfway in 25 minutes for quick top-ups
- 1080p resolution on a 6.78-inch AMOLED screen feels low for 2024; rivals at this price now ship 1440p, making text and fine detail noticeably softer
- 45W charging is competent but trails the 100W+ standard at this price point, meaning full charges still take 45–60 minutes
- 360 EUR is steep for a phone without 5G and without meaningful flagship features; a 200 EUR device with similar specs would feel fairer
Infinix Zero 40 4G Key Specifications
The essentials at a glance. See the full spec sheet.
| Released | 2024, August 29 |
|---|---|
| Display | 6.78 inches, 109.9 cm2 (~89.4% screen-to-body ratio), AMOLED, 1B colors, HDR, 144Hz, 1300 nits (HBM) |
| Resolution | 1080 x 2436 pixels (~393 ppi density) |
| Chipset | Mediatek Dimensity 8200 Ultimate (4 nm) |
| RAM & storage | 256GB 12GB RAM, 512GB 12GB RAM |
| Main camera | 108 MP, f/1.8, (wide), 1/1.67", PDAF, OIS 50 MP, f/2.0, 120˚, (ultrawide), 1/2.76", PDAF Auxiliary lens |
| Selfie camera | 50 MP, f/2.5, 21mm (wide), 1/2.76", PDAF |
| Battery | 5000 mAh |
| Charging | 45W wired, 50% in 25 min10W reverse wiredBypass Charging 2.0 |
| Software | Android 14, up to 2 major Android upgrades, XOS 14.5 |
| Dimensions | 164.3 x 74.8 x 7.9 mm (6.47 x 2.94 x 0.31 in) |
| Weight | 195 g (6.88 oz) |
| Durability | IP54 dust protected and water resistant (water splashes) |
| Network | GSM / HSPA / LTE / 5G |
| NFC | Yes |
| USB | USB Type-C 2.0, OTG |
Infinix Zero 40 4G FAQ
Common questions, answered from the spec sheet.
Does the Zero 40 4G support 5G?
Yes. The Zero 40 4G supports 5G networks.
What chipset does the Zero 40 4G use?
The Zero 40 4G runs on the Mediatek Dimensity 8200 Ultimate (4 nm).
What display does the Zero 40 4G have?
A 6.78 inches, 109.9 cm2 (~89.4% screen-to-body ratio) AMOLED, 1B colors, HDR, 144Hz, 1300 nits (HBM), 1080 x 2436 pixels (~393 ppi density).
How big is the Zero 40 4G battery?
The Zero 40 4G has a 5000 mAh battery. Charging is rated at 45W wired, 50% in 25 min10W reverse wiredBypass Charging 2.0.
Does the Zero 40 4G have NFC?
Yes, the Zero 40 4G has NFC.
Is the Zero 40 4G water resistant?
The Zero 40 4G carries a IP54 dust protected and water resistant (water splashes) rating.
Does the Zero 40 4G support a microSD card?
No, the Zero 40 4G does not support expandable storage.
Does the Zero 40 4G have a headphone jack?
No, the Zero 40 4G does not have a 3.5mm headphone jack.
Alternatives to consider
If the Zero 40 4G isn’t quite right, these are the closest calls.
Zero 40 5G
Note 40 Pro 5G
Note 40 Pro 4G
Zero 40
Galaxy A35 5G
