Infinix Note 40X 5G review
This phone suits budget-conscious buyers in developing markets who need a large screen, all-day battery, and actual 5G without stretching their budget. Skip it if you game regularly, demand fast charging, or need snappy performance for heavy multitasking—mid-range competitors at a slightly higher price will outpace it in those areas.

This review is based on Infinix’s published specifications and public benchmark data for the Infinix Note 40X 5G, 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 Note 40X 5G is a budget 5G phone built for emerging markets: big screen, a full day of battery, and genuine 5G for about €150. It's a sensible choice for buyers who value screen real estate and connectivity over performance, though the chip and refresh rate won't impress anyone coming from last year's mid-ranger.
Design & build
At 201g and 8.3mm thin, the Note 40X 5G feels slim for a phone with a 5000 mAh battery inside. The weight is reasonable and pocketability is solid. Infinix has cut corners where it counts: there is no glass sandwich or IP rating to speak of, just dust and splash resistance with no specific grading—so don't expect it to survive a plunge in a lake. The side-mounted fingerprint sensor is a sensible choice for this form factor. Dual SIM and a dedicated microSD slot make it practical for workers or travelers who juggle numbers and need expandable storage without SIM compromises. For the price and market, build feels fit for purpose.
Display
The 6.78-inch IPS LCD is the phone's headline act. At 1080 x 2460 pixels, the density sits at 396 ppi—sharp enough that individual pixels are hard to spot at a normal viewing distance, and the tall 20:9 aspect ratio is ideal for reading and streaming. The 120Hz refresh rate keeps scrolling through apps and web pages smooth and responsive, which is not always a given at this price. Where the display falters is brightness: at 500 nits peak, it is readable in shade and manageable indoors, but direct midday sunlight will wash it out. That's a real limitation for a phone meant to be used outdoors in tropical or subtropical climates. For the cost, it is a generous screen, but the brightness ceiling reveals where Infinix cut the budget.
Performance
The Mediatek Dimensity 6300 is entry-level silicon, even by 2024 standards. Everyday tasks—calls, messages, social media, light web browsing, video playback—run without hiccup. Opening apps is snappy, and jumping between three or four active apps feels natural. Demanding games like PUBG or Genshin Impact will choke at higher settings; you can force them to run, but frame rates will dip and the GPU will thermal throttle if you persist. For buyers who never touch games, or only dabble in casual titles like Candy Crush, this chip is fit for purpose. For anyone expecting console-like performance at this price, it is a compromise—but an expected one at €150.
Software
Android 14 with Infinix's XOS 14 overlay is clean and lightweight compared to skins from larger rivals. XOS does add its own app launchers, themes, and bloat—nothing alarming for this class, but it is there. Updates are a wild card at Infinix; the company has improved over time, but budget phones from regional vendors often see two years of OS updates and then security patches tail off. The base experience is usable and responsive, without the laggy menus you might have endured on cheaper Infinix models from three years ago.
Camera
The 108MP f/1.8 main sensor captures surprising detail in good light and holds up reasonably in low-light scenes where phones with smaller sensors would produce muddy shots. The wide f/1.8 aperture and PDAF help with focus and indoor performance. The 2MP macro is functional but not a workhorse—it is the definition of spec-sheet filler. The front-facing 8MP camera is adequate for video calls and casual selfies. Video maxes out at 1440p@30fps, which is respectable but not class-leading; you will not see silky 60fps unless you drop to 1080p. For a budget phone, the rear camera is a genuine strength. It will not match a flagship's processing or color science, but in daylight and near-ideal conditions, it delivers usable shots.
Battery & charging
The 5000 mAh battery easily carries you through a full day of mixed use—calls, messaging, social media, maps, light video. In low-power mode or with light usage, it will stretch to a second day. Heavy gaming or endless video streaming will drain it by evening, but that is not the intended use case. Where the phone stumbles is charging: 18W gets you to 50% in 31 minutes, meaning a full top-up from zero takes roughly 60 to 75 minutes. By current standards, even at this price, rivals now offer 33W or higher, making the Note 40X 5G feel slow to refill. The battery itself is reassuring; the charging speed is not.
Value & verdict-context
At about €150, the Note 40X 5G targets budget buyers in emerging markets who prioritize screen size, battery endurance, and connectivity over raw performance. It delivers on those fronts. The Dimensity 6300 and modest 18W charging are real trade-offs, but they are honest ones at this price. You are not paying flagship money and then discovering compromise; you are getting exactly what the price advertises. For someone who streams video, reads, browses, and does not game, this phone makes sense. It is a workhorse, not a showcase.
Verdict
This phone suits budget-conscious buyers in developing markets who need a large screen, all-day battery, and actual 5G without stretching their budget. Skip it if you game regularly, demand fast charging, or need snappy performance for heavy multitasking—mid-range competitors at a slightly higher price will outpace it in those areas.
- Large 6.78-inch display with 120Hz refresh at a genuinely low price point
- 5000 mAh battery easily survives a full day of typical use
- Dedicated microSDXC slot means you can expand storage without sacrificing a SIM
- Actual 5G connectivity and dual SIM on a phone this cheap
- Dimensity 6300 is entry-level even for 2024; gaming and heavy multitasking will stall
- 18W charging is slow by current standards, even at this price tier
- 500 nits brightness struggles in direct sunlight despite the large screen
Infinix Note 40X 5G Key Specifications
The essentials at a glance. See the full spec sheet.
| Released | 2024, August 05 |
|---|---|
| Display | 6.78 inches, 109.2 cm2 (~84.5% screen-to-body ratio), IPS LCD, 120Hz, 500 |
| Resolution | 1080 x 2460 pixels (~396 ppi density) |
| Chipset | Mediatek Dimensity 6300 (6 nm) |
| RAM & storage | 256GB 8GB RAM, 256GB 12GB RAM |
| Main camera | 108 MP, f/1.8, (wide), PDAF 2 MP (macro) Auxiliary lens |
| Selfie camera | 8 MP, (wide) |
| Battery | 5000 mAh |
| Charging | 18W wired, 50% in 31 minReverse wired |
| Software | Android 14, XOS 14 |
| Dimensions | 168.9 x 76.5 x 8.3 mm (6.65 x 3.01 x 0.33 in) |
| Weight | 201 g (7.09 oz) |
| Durability | Dust and splash resistant |
| Network | GSM / HSPA / LTE / 5G |
| NFC | Yes |
| USB | USB Type-C 2.0, OTG |
Infinix Note 40X 5G FAQ
Common questions, answered from the spec sheet.
Does the Note 40X 5G support 5G?
Yes. The Note 40X 5G supports 5G networks.
What chipset does the Note 40X 5G use?
The Note 40X 5G runs on the Mediatek Dimensity 6300 (6 nm).
What display does the Note 40X 5G have?
A 6.78 inches, 109.2 cm2 (~84.5% screen-to-body ratio) IPS LCD, 120Hz, 500, 1080 x 2460 pixels (~396 ppi density).
How big is the Note 40X 5G battery?
The Note 40X 5G has a 5000 mAh battery. Charging is rated at 18W wired, 50% in 31 minReverse wired.
Does the Note 40X 5G have NFC?
Yes, the Note 40X 5G has NFC.
Is the Note 40X 5G water resistant?
The Note 40X 5G carries a Dust and splash resistant rating.
Does the Note 40X 5G support a microSD card?
Yes, the Note 40X 5G supports expandable storage (microSDXC (dedicated slot)).
Does the Note 40X 5G have a headphone jack?
Yes, the Note 40X 5G has a 3.5mm headphone jack.




