Used uleFone Armor 28 Ultra – 12-mo warranty, from €670 | Latvia

Refurbished uleFone Armor 28 Ultra is available at Greenfox with prices starting from €670. 6.67", Mediatek Dimensity 9300+ (4 nm), RAM: 16GB, (2025). All devices are inspected and covered by up to 12-month warranty.

Pros

+Top-tier performance: The Dimensity 9300+ is one of the fastest chips on the market, ensuring smooth operation even with demanding applications.
+Professional thermal camera: The FLIR Lepton 3.5 is the best thermal sensor integrated into a smartphone.
+Massive battery: The 10600 mAh ensures worry-free use for several days without a charger.
+Exceptional camera: The 1-inch Sony sensor brings pro-quality photos into a rugged body.
+Extreme durability: MIL-STD-810H and IP69K certifications ensure reliability even in the harshest conditions.
+Fast charging: 120W wired charging refills the huge battery surprisingly quickly.

Cons

−Very heavy and thick: Weighing over 400g, this device won't comfortably fit in every pocket.
−Limited software support: Ulefone does not offer as long an update period as Samsung or Google.
−No eSIM: Only uses physical Nano-SIM cards, which can be inconvenient for travelers.
−Expensive price: Compared to other Chinese rugged brands, the Ultra model is significantly more expensive.
−Difficult to repair: The adhesives used to ensure water resistance make screen replacement costly.

Frequently Asked Questions - uleFone Armor 28 Ultra

What is the detection range of the thermal camera?

The FLIR Lepton 3.5 sensor can detect heat sources up to 100 meters away, but accurate temperature measurement is recommended within a 10-meter radius.

Does the screen work with wet hands or gloves?

Yes, the device has a special 'Glove Mode' and the screen is optimized to work even in rain or with wet fingers.

How deep can this phone be submerged in water?

The Armor 28 Ultra meets IP68/IP69K standards, meaning it can withstand submersion in water up to 1.5 meters deep for 30 minutes and high-pressure water jets.

Does the phone have programmable buttons?

Yes, there is an orange 'Custom Key' on the left side that can be configured to launch the thermal camera, flashlight, or other apps with a single press.

How does the rear screen work?

The small 1.1-inch screen on the back of the phone displays the time, notifications, battery level, and music controls, saving the main screen.

Do the 1-inch sensor take better pictures than regular phones?

Yes, the Sony IMX989 sensor captures significantly more light, resulting in noticeably better night shots and natural depth of field (bokeh) compared to standard rugged phones.