Best Asus Smartphones Under $700 in USA

Shopping for the best Asus smartphones under $700 in the USA gives buyers access to flagship-grade processors, high-brightness 120Hz–165Hz LTPO OLED screens, pro telephoto camera systems, and multi-year OS update support without overspending. Asus serves two distinct segments in the US unlocked smartphone market: the ultra-powerful 165Hz ROG Phone gaming series (complete with AirTrigger ultrasonic shoulder buttons and dual USB-C ports) and the Zenfone flagship series (spanning the compact 5.9-inch Zenfone 10 and the 6.78-inch Zenfone 11 Ultra).

On TheNewsify, our comprehensive price list guide compares the top Asus smartphones available under $700 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 Asus Smartphones Under $700 in USA

Top Picks Breakdown: Best Asus Smartphones Under $700

1. Asus Zenfone 10 (128GB / 8GB RAM) — Best one-handed flagship under $700 ($649–$699)

At $649 to $699 unlocked in the US, the 128GB Zenfone 10 delivers effortless one-handed ergonomics, a ZenTouch 2.0 side power key, IP68 water resistance, and surprisingly long 4,300 mAh battery life. In the sub-$700 US price bracket, it stands out for combining 5.9″ FHD+ 144Hz AMOLED and Snapdragon 8 Gen 2 with dependable everyday battery life and strong resale value. You can verify current US band support and technical sheets on the Asus US Official Zenfone & ROG Phone Store.

2. Asus Zenfone 10 (256GB / 8GB or 16GB RAM) — Best compact 5.9-inch flagship phone under $750–$800 ($699 (Renewed / Deal))

Only 68.1mm wide, the 256GB Asus Zenfone 10 ($749) is the undisputed king of compact Android phones, offering a 5.9-inch 144Hz AMOLED display, Snapdragon 8 Gen 2 processor, 15W wireless charging, and a 6-axis gimbal camera. In the sub-$700 US price bracket, it stands out for combining 5.9″ 144Hz AMOLED and Snapdragon 8 Gen 2 with dependable everyday battery life and strong resale value. Compare additional hardware configurations on the Asus ROG Republic of Gamers US Phone Lineup.

3. Asus ROG Phone 7 (512GB / 16GB RAM) — Best notchless 165Hz gaming phone under $800–$900 ($699 (Renewed / Deal))

For mobile gamers who want uninterrupted symmetry with zero punch-hole camera cutout and symmetrical front stereo speakers, the ROG Phone 7 ($799) packs a 6,000 mAh battery and Snapdragon 8 Gen 2 chip. In the sub-$700 US price bracket, it stands out for combining 6.78″ 165Hz AMOLED and Snapdragon 8 Gen 2 with dependable everyday battery life and strong resale value.

4. Asus Zenfone 11 Ultra (256GB / 12GB RAM) — Best large-screen Asus flagship under $900 ($699 (Renewed / Deal))

At $899 unlocked in the US, the 256GB Zenfone 11 Ultra gives you Snapdragon 8 Gen 3 flagship speed, on-device AI noise cancellation and call translation, a 3.5mm headphone jack, and two-day 5,500 mAh battery endurance. In the sub-$700 US price bracket, it stands out for combining 6.78″ 144Hz LTPO AMOLED and Snapdragon 8 Gen 3 with dependable everyday battery life and strong resale value.

5. Asus ROG Phone 6 (256GB / 12GB RAM Unlocked) — Best gaming phone under $600 ($579)

Available around $579 unlocked, the Asus ROG Phone 6 brings ultrasonic AirTrigger shoulder buttons, a 165Hz Samsung AMOLED screen, dual USB-C ports, and a 6,000 mAh battery under $600. In the sub-$700 US price bracket, it stands out for combining 6.78″ 165Hz AMOLED and Snapdragon 8+ Gen 1 with dependable everyday battery life and strong resale value.

How to Choose the Right Asus Smartphone Under $700 in the US

• ROG Phone Gaming Hardware vs. Zenfone Everyday Flagships: Pick the ROG Phone 8 / 8 Pro if you want AirTrigger ultrasonic shoulder controls, dual side-and-bottom USB-C ports, and AeroActive Cooler X compatibility; choose the Zenfone 10 for one-handed 5.9-inch portability or the Zenfone 11 Ultra for clean executive styling.
• 6-Axis Hybrid Gimbal Stabilizer 3.0: Both the Zenfone 10, Zenfone 11 Ultra, and ROG Phone 8 series incorporate Asus’s hardware 6-Axis Hybrid Gimbal Stabilizer on the 50MP main sensor for action-cam-smooth handheld video.
• 3.5mm Headphone Jack & Dirac Virtuo Audio: Unlike almost every other flagship brand, Asus retains a high-resolution 3.5mm wired headphone jack across its Zenfone and ROG Phone flagships.
• US GSM 5G Network Support: US-version Asus Zenfone and ROG Phone models work best on T-Mobile, AT&T, and GSM-based MVNOs.
• Compare Adjacent Price Brackets & Rivals: Want to see what stepping up or saving a little unlocks? Explore our guides to the best Asus smartphones under $600 in USA, best Asus smartphones under $800 in USA, best Asus smartphones under $900 in USA, or compare cross-brand options in our best Samsung smartphones under $700 in USA roundup.

Frequently Asked Questions

Which is the best overall Asus smartphones under $700 in the USA?

The Asus Zenfone 10 (128GB / 8GB RAM) ($649–$699) and Asus Zenfone 10 (256GB / 8GB or 16GB RAM) are the top choices under $700 in the US market, offering 5.9″ FHD+ 144Hz AMOLED, Snapdragon 8 Gen 2, 8GB RAM, 50MP Gimbal OIS Camera, 4,300 mAh, 3.5mm Jack, IP68 alongside reliable multi-carrier connectivity.

Which Asus smartphone under $700 has the best camera?

For mobile photography under $700, the Asus Zenfone 10 (128GB / 8GB RAM) leads the bracket thanks to its high-resolution sensor and advanced night and portrait processing, while Asus ROG Phone 7 (512GB / 16GB RAM) is a strong value alternative.

Do unlocked Asus phones under $700 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 $700 offers the longest battery life and fastest charging?

Models equipped with 5,000 mAh to 6,500 mAh batteries—such as the Asus Zenfone 10 (128GB / 8GB RAM) and Asus Zenfone 10 (256GB / 8GB or 16GB RAM)—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 $700?

Under $700, 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.