HAMMER is a European brand specializing in reinforced, rugged smartphones, feature phones, and smartwatches designed to withstand extreme conditions, water, and dust.
MARTELL is a specialized brand of rugged mobile devices and electronics produced by mPTech Sp. z o.o. The brand focuses on creating reinforced telèfons intel·ligents, feature phones, i rellotges intel·ligents capable of operating in extreme conditions. HAMMER devices are distinguished by their resistance to water, dust, and shocks, typically carrying IP68, IP69, and MIL-STD-810 certifications.
Designed for professionals in construction, industry, and emergency services, as well as outdoor adventurers, HAMMER phones combine physical durability with practical modern features like eSIM support, night vision cameras, and high-capacity batteries. The product portfolio also includes the HAMMER Watch series and heavy-duty charging accessories.
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Most HAMMER devices are IP68 or IP69 certified, meaning they are resistant to dust and water immersion when all seals and covers are properly closed.
You can find digital user manuals on the official HAMMER website or browse our collection of manuals on this page.
For many sealed HAMMER models, you must unscrew the battery compartment cover to access the SIM and memory card slots. Refer to your specific model's manual for screw locations and card orientation.
Yes, HAMMER products typically come with a manufacturer warranty. Contact mPTech support or your retailer for specific warranty terms in your region.