What is the frequency bands of the Ulefone Armor 28 Ultra?

5G: NR Sub6: N1/2/3/5/7/8/20/25/28/38/40/41/66/71/77/78/79

Which carriers is it compatible with?

Compatible with most carriers such as T-Mobile, Metro PCS, Mint Mobile and others.

What to do if your Armor 28 Ultra can't work with your carrier?

You need to activate the SIM card on a existing phone which supports your carrier. After you receive the initial activation texts or get 4G signal, put the SIM card back into your Armor 28 Ultra.

How to activate the virtual 16GB memory expansion?

The Virtual Memory Expansion can be activated in Settings and adds up to 16GB of RAM. Some software may not be compatible with this feature.

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📱 Rugged meets refined — power, style, and unstoppable performance in one ultra-smart package!

RUGGED POWERHOUSE - Built tough with IP68/IP69K, MIL-STD 810G, Gorilla Glass 5, and a monster 10600mAh battery with 120W fast charging — never miss a beat.
DUAL AMOLED DISPLAYS - Immerse yourself in vibrant 6.67" 120Hz AMOLED with a handy always-on 1.04" sub-display for quick access and style.
MASSIVE STORAGE SPEED - 32GB RAM plus up to 2TB expandable storage ensures zero lag and endless space for your digital life.
UNSTOPPABLE CONNECTIVITY - Experience blazing-fast global 5G with dual SIM standby for seamless work and play anywhere.
PRO GRADE TRIPLE CAMERA SETUP - Capture every moment in stunning 64MP clarity, ultra-wide 50MP, and 8K video — rugged phone photography redefined.

The Ulefone Armor 28 Ultra 5G is a rugged smartphone engineered for professionals who demand durability and cutting-edge tech. Featuring a powerful MediaTek Dimensity 9300+ 12-core processor, massive 32GB RAM with up to 2TB expandable storage, and a stunning 6.67" AMOLED dual-screen setup, it delivers smooth multitasking and immersive visuals. Its triple camera system includes a 64MP night vision sensor and 8K video recording, perfect for capturing every detail. With a robust 10600mAh battery supporting 120W fast charging and IP68/IP69K water and dust resistance, this phone is built to keep up with your active, on-the-go lifestyle.

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