Best Infinix Smartphones Under $300 in USA

Shopping for the best Infinix smartphones under $300 in the USA gives buyers access to vibrant 120Hz AMOLED displays, optically stabilized (OIS) 50MP–200MP cameras, fast 5G processors, and rapid 30W–80W charging without overspending. Infinix has disrupted the sub-$300 unlocked smartphone segment by packing features normally reserved for $700 phones—such as 20W MagCharge magnetic wireless charging, JBL-tuned stereo speakers, 120Hz curved AMOLED panels, and 108MP OIS cameras—into $150 to $299 packages.

On TheNewsify, our comprehensive price list guide compares the top Infinix smartphones available under $300 in the US market—complete with side-by-side hardware specifications, real-world camera and battery breakdowns, and carrier compatibility tips.

Price List of Best Infinix Smartphones Under $300 in USA

Top Picks Breakdown: Best Infinix Smartphones Under $300

1. Infinix Note 40 Pro+ 5G / Note 40 Pro 5G (256GB / 12GB RAM) — Best overall Infinix 5G phone with OIS & MagCharge under $300 ($289)

Priced at $289, the Infinix Note 40 Pro+ 5G (and Note 40 Pro 5G) packs a 120Hz Gorilla Glass 5 curved AMOLED display, a 108MP optically stabilized (OIS) main camera, JBL stereo speakers, 12GB of physical RAM, 256GB storage, and 20W magnetic wireless MagCharge included in the box. In the sub-$300 US price bracket, it stands out for combining 6.78″ FHD+ 120Hz 55° Curved AMOLED and Dimensity 7020 5G with dependable everyday battery life and strong resale value. You can verify current US band support and technical sheets on the Infinix Mobility Official Global Smartphones Catalog.

2. Infinix GT 10 Pro 5G (256GB / 8GB RAM Cyber Mecha) — Best gaming performance Infinix phone under $280–$300 ($269)

Powered by the flagship-grade MediaTek Dimensity 8050 5G processor with UFS 3.1 storage and a clean bloatware-free Pure XOS interface, the $269 Infinix GT 10 Pro 5G delivers 90fps–120fps gaming and a Cyber Mecha interactive mini-LED back. In the sub-$300 US price bracket, it stands out for combining 6.67″ FHD+ 120Hz 10-bit AMOLED and MediaTek Dimensity 8050 5G with dependable everyday battery life and strong resale value. Compare additional hardware configurations on the GSMArena Infinix Note & GT Series Specifications.

3. Infinix Note 40 Pro 4G (256GB / 8GB RAM) — Best curved AMOLED & 108MP OIS camera under $250 ($239)

At $239, the Infinix Note 40 Pro 4G gives you a 55-degree curved 120Hz AMOLED screen, a 108MP OIS camera, 70W All-Round FastCharge 2.0, and a magnetic wireless charging kit in the box. In the sub-$300 US price bracket, it stands out for combining 6.78″ FHD+ 120Hz Curved AMOLED and Helio G99 Ultimate with dependable everyday battery life and strong resale value.

4. Infinix Zero 30 4G (256GB / 8GB RAM) — Best 50MP front selfie & vlogging camera under $250 ($229)

Built for front-camera creators, the $229 Infinix Zero 30 4G pairs a 50MP autofocus front vlogging camera with a 120Hz curved AMOLED screen and 108MP main rear sensor. In the sub-$300 US price bracket, it stands out for combining 6.78″ FHD+ 120Hz Curved AMOLED and Helio G99 with dependable everyday battery life and strong resale value.

5. Infinix Note 40 (256GB / 8GB RAM) — Best wireless-charging AMOLED phone under $200 ($199)

Retailing at $199, the standard Infinix Note 40 is virtually unheard of at this price point: a flat 120Hz 1,300-nit AMOLED display, 108MP main camera, JBL dual speakers, 45W wired charger, and 20W magnetic wireless charging. In the sub-$300 US price bracket, it stands out for combining 6.78″ FHD+ 120Hz Flat AMOLED and Helio G99 Ultimate with dependable everyday battery life and strong resale value.

How to Choose the Right Infinix Smartphone Under $300 in the US

• All-Round FastCharge 2.0 & 20W MagCharge (Note 40 Series): Every Infinix Note 40 and Note 40 Pro includes Infinix’s custom Cheetah X1 power management chip plus a magnetic wireless MagPad charger and MagCase right in the box.
• Bypass Charging for Cooler Gaming: Both the Infinix GT and Note 40 series feature Bypass Charging, routing power directly to the motherboard during gaming sessions to keep battery temperatures low.
• JBL Dual Stereo Speakers: Infinix partners with JBL to tune the dual symmetrical stereo speakers across the Note 40 and Note 30 series.
• US Network Compatibility: Imported global Infinix phones operate on GSM networks like T-Mobile and T-Mobile MVNOs (Mint Mobile, Tello, Metro) via 4G LTE Bands 2, 4, 5, 7, 12, 41, and 66.
• Compare Adjacent Price Brackets & Rivals: Want to see what stepping up or saving a little unlocks? Explore our guides to the best Infinix smartphones under $250 in USA, best Infinix smartphones under $200 in USA, best Infinix smartphones under $200 in USA, or compare cross-brand options in our best Xiaomi smartphones under $300 in USA roundup.

Frequently Asked Questions

Which is the best overall Infinix smartphones under $300 in the USA?

The Infinix Note 40 Pro+ 5G / Note 40 Pro 5G (256GB / 12GB RAM) ($289) and Infinix GT 10 Pro 5G (256GB / 8GB RAM Cyber Mecha) are the top choices under $300 in the US market, offering 6.78″ FHD+ 120Hz 55° Curved AMOLED, Dimensity 7020 5G, 108MP OIS Super-Zoom Camera, 100W/45W Wired + 20W MagCharge Wireless alongside reliable multi-carrier connectivity.

Which Infinix smartphone under $300 has the best camera?

For mobile photography under $300, the Infinix Note 40 Pro+ 5G / Note 40 Pro 5G (256GB / 12GB RAM) leads the bracket thanks to its high-resolution sensor and advanced night and portrait processing, while Infinix Note 40 Pro 4G (256GB / 8GB RAM) is a strong value alternative.

Do unlocked Infinix phones under $300 work on US 5G networks?

Yes. Factory-unlocked smartphones in this guide support US 4G LTE and sub-6GHz 5G networks. Always match the exact model number to your carrier (Verizon, AT&T, T-Mobile, or MVNOs like Mint Mobile and Visible) before activating your SIM or eSIM.

Which phone under $300 offers the longest battery life and fastest charging?

Models equipped with 5,000 mAh to 6,500 mAh batteries—such as the Infinix Note 40 Pro+ 5G / Note 40 Pro 5G (256GB / 12GB RAM) and Infinix GT 10 Pro 5G (256GB / 8GB RAM Cyber Mecha)—easily deliver 1.5 to 2 days of mixed use on a single charge.

How much RAM and storage should I get on a smartphone under $300?

Under $300, look for at least 8GB to 12GB of RAM and 128GB to 256GB of fast UFS storage so 4K video recording, multitasking, and modern games run smoothly for years.