Best Smartphones Under $400 in USA

Shopping for the best smartphones under $400 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. The US unlocked smartphone market spans ultra-affordable prepaid LTE/5G handsets from Motorola, Nokia, and TCL under $150, feature-packed mid-range 120Hz OLED phones from Samsung, Google, and OnePlus between $250 and $600, and flagship-tier devices from Apple, Samsung, and Google up to $950.

On TheNewsify, our comprehensive price list guide compares the top smartphones available under $400 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 Smartphones Under $400 in USA

Top Picks Breakdown: Best Smartphones Under $400

1. Samsung Galaxy A35 5G (128GB) — Best all-round mid-range phone under $400 ($399)

The $399 Samsung Galaxy A35 5G brings Gorilla Glass Victus+ protection, IP67 water resistance, a 1,000-nit 120Hz Super AMOLED display, an optically stabilized 50MP main camera, and microSD expansion up to 1TB. In the sub-$400 US price bracket, it stands out for combining 6.6″ FHD+ 120Hz Super AMOLED and Exynos 1380 with dependable everyday battery life and strong resale value. You can verify current US band support and technical sheets on the GSMArena US 5G Smartphone Finder.

2. Moto G Stylus 5G (256GB) — Best note-taking stylus phone under $350 ($349–$399)

Equipped with a built-in note-taking stylus, a 120Hz pOLED display, wireless charging, 256GB of internal storage, a microSD slot, and a 3.5mm headphone jack, the Moto G Stylus 5G is a productivity powerhouse under $350. In the sub-$400 US price bracket, it stands out for combining 6.7″ FHD+ 120Hz pOLED and Snapdragon 6 Gen 1 with dependable everyday battery life and strong resale value. Compare additional hardware configurations on the Official Android Phones Showcase.

3. Samsung Galaxy A25 5G (128GB) — Best 120Hz AMOLED + OIS camera under $300 ($299)

At $299, the Samsung Galaxy A25 5G stands out with a 120Hz Super AMOLED display, true optical image stabilization (OIS) on its 50MP main camera, stereo speakers, a headphone jack, and 4 generations of OS updates. In the sub-$400 US price bracket, it stands out for combining 6.5″ FHD+ 120Hz Super AMOLED and Exynos 1280 with dependable everyday battery life and strong resale value.

4. OnePlus Nord N30 5G (128GB) — Best fast-charging phone under $250 ($249–$299)

The OnePlus Nord N30 5G ($249) includes a 50W SUPERVOOC brick in the box, 8GB of physical RAM, a 108MP 3x lossless-zoom sensor, stereo speakers, and a 120Hz display. In the sub-$400 US price bracket, it stands out for combining 6.72″ FHD+ 120Hz LCD and Snapdragon 695 5G with dependable everyday battery life and strong resale value.

5. Samsung Galaxy A15 5G (128GB) — Best sub-$200 5G phone with AMOLED screen ($199)

Retailing at $199 unlocked, the Galaxy A15 5G brings a vibrant 90Hz Super AMOLED screen, 128GB of base storage, NFC tap-to-pay, and 25W fast charging support to the sub-$200 tier. In the sub-$400 US price bracket, it stands out for combining 6.5″ FHD+ 90Hz Super AMOLED and MediaTek Dimensity 6100+ with dependable everyday battery life and strong resale value.

How to Choose the Right Smartphone Under $400 in the US

• US Carrier & 5G Band Compatibility: When buying an unlocked smartphone in the USA, confirm support for sub-6GHz C-Band (n77) and extended-range 5G (n71/n41) across Verizon, AT&T, T-Mobile, and prepaid MVNOs like Mint Mobile, Visible, and Cricket.
• Display Panel & Refresh Rate: Above $200, prioritize 90Hz or 120Hz AMOLED/OLED panels for vivid outdoor visibility and smooth scrolling; below $150, look for HD+ IPS LCD screens with 90Hz refresh rates and toughened glass.
• Software Support & Security Updates: Google Pixel and Samsung Galaxy models lead the US market with 4 to 7 years of guaranteed OS and security updates, while Apple iPhones routinely receive 6+ years of iOS upgrades.
• Battery Capacity & Fast Charging: Aim for at least a 4,500 mAh to 5,000 mAh battery. Models from OnePlus and Motorola often support 30W to 80W fast wired charging, cutting recharge times down to 30–45 minutes.
• Compare Adjacent Price Brackets & Rivals: Want to see what stepping up or saving a little unlocks? Explore our guides to the best smartphones under $350 in USA, best smartphones under $450 in USA, best smartphones under $500 in USA, or compare cross-brand options in our best Samsung smartphones under $400 in USA roundup.

Frequently Asked Questions

Which is the best overall smartphones under $400 in the USA?

The Samsung Galaxy A35 5G (128GB) ($399) and Moto G Stylus 5G (256GB) are the top choices under $400 in the US market, offering 6.6″ FHD+ 120Hz Super AMOLED, Exynos 1380, 6GB RAM, 50MP OIS + 8MP + 5MP, 5,000 mAh, IP67, microSD alongside reliable multi-carrier connectivity.

Which smartphone under $400 has the best camera?

For mobile photography under $400, the Samsung Galaxy A35 5G (128GB) leads the bracket thanks to its high-resolution sensor and advanced night and portrait processing, while Samsung Galaxy A25 5G (128GB) is a strong value alternative.

Do unlocked phones under $400 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 $400 offers the longest battery life and fastest charging?

Models equipped with 5,000 mAh to 6,500 mAh batteries—such as the Samsung Galaxy A35 5G (128GB) and Moto G Stylus 5G (256GB)—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 $400?

Under $400, 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.