With its rugged design and IP68 rated resistance to dust and liquid intrusion, the Ulefone Armor X3 is a great smartphone choice for rugged industry use. The powerful smartphone features an underwater mode (up to 30 minutes in 1.5 meters); military-grade certification for 1.2-meter drops; functionality in low-pressure, high humidity, and acidic atmospheres; and a customizable button (to launch an app or trigger a specific function). It has a 5.5-inch IPS LCD display, a 5,000mAh battery, a MediaTek MT6580 processor, dual cameras, microUSB charging, and a toolkit of handy digital features and sensors for extra help.
Esper is a device management company. We don’t sell devices directly, but offer in-depth hardware recommendations informed by thousands of customers and vetted for your use case, needs, and desired outcomes. Our vast partner catalog and relationships mean we can connect you directly to manufacturers, saving you time, trouble, and money. Welcome to the fast lane.

microUSB 2.0, microSDXC, 3.5mm
Acceleration, proximity, light, e-compass
Esper Supported devices have been tested by Esper in our labs or deployed at a sufficient scale by customers to prove they meet the bar for real-world deployment. When you choose an Esper Supported device, you’re getting hardware that is sufficiently vetted for use on our device management platform and ready for deployment at scale.
Esper Foundation for Android is an enterprise-grade operating system for company owned and managed hardware. It features long-term support, regular security patches, and customizable control over the entire experience, combined with robust and powerful device management tools. It’s the full-stack solution you’ve always dreamed of.
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Inadequate hardware can restrict the functionality of your system, resulting in a subpar experience and performance. Esper tackles this with:
Zero-Touch Provisioning
Ready-to-go Secure Remote Debugging
Remote View and Remote Control