With a lens and functions worthy of the best action cams, the TREKKER-X4 was designed to accompany you on your most extreme expeditions but also to capture them. Thanks to its dedicated application, X-CAM, you can create your stories while filming, editing and sharing your achievements easily, and above all, instantly.

Its intuitive use, its reinforcement, its shock resistance and its waterproofness also make it very comfortable to use, turning it into an everyday smartphone that is always ready for action, whether it’s at the other end of world or in your basement.




Certified IP68, the TREKKER-X4 is resistant to particles and numerous liquids. In salty water as well as in chlorinated swimming pools, it can be immersed for 1 hour up to 2 metres deep and you can even take it with you for water-based activities involving serious amounts of splashing. Jet-skiing, kayaking, snorkelling, you can enjoy everything without having to worry about your TREKKER-X4.


With durability like this, there’s no doubt that it’s a CROSSCALL. Its reinforced CorningTM GorillaTM Glass 5 on the back and front won’t crack or break on impact. Its structure is mounted on the bushing and absorbs shocks, and includes fibreglass, an internal magnesium metal plate, aluminium sidebars and reinforced corners… Its durability has been proven since the TREKKER-X4 has the highest pass rate for the MIL-STD military standard tests for any smartphone from the brand. The MIL-STD military standard is US Army-created examination to replicate actual conditions of use for electronic appliances in the field, in extreme conditions.

With its 4,400mAh battery, the TREKKER-X4 pushes back the boundaries to allow you to enjoy its features and its camera for as long as possible and even more besides, thanks to its outdoor continuous use energy saving mode. It quickly regains its battery with optimised QC 3.0 charging and a shielded USB-C cable that comes in its own box. It is also compatible with intuitive charging accessories that extend its life, such as the X-POWER, a charging station with a 5,000mAh external battery and the X-CAR, to charge your smartphone by the end of your journey.



A performance, a record, a feat, there are moments in life that deserve to be seen by all, right here and now. The TREKKER-X4 enables you to stream your videos live on social networks, all in wide-angle. A simple and immediate way to share the magic of the moment with all your loved ones.


The TREKKER-X4 makes it easy to shoot, edit, post-produce and export with X-CAM, the native application designed and developed by CROSSCALL. It is very practical and is directly integrated into your smartphone. It’s an all-in-one tool for intuitive shooting, ideal for creating videos that live up to your outdoor performances.



The TREKKER-X4 was designed in partnership with recognised experts in image processing. Performance and image quality have been improved at every step of its development to achieve unprecedented precision. It has excellent photo quality (dual 12 MP LARGE PIXEL) thanks to its dual camera and its ultrafast autofocus; hybrid autofocus (PDAF, optimal in high brightness) and laser autofocus (optimal in low light).


The TREKKER-X4 sports a sleek and sporty design and incorporates the very best features of a wide-angle action cam in just 12.85 millimetres of thickness. The curved lines and the sanded aluminium sidebars of the smartphone make it easy to handle. Its anodised chamfers are designed for reinforced wear and shock resistance. The light is thus reflected across various surface types, creating a harmonious and attractive interplay between the different materials. The perfect compromise between hard-wearing materials and design, the TREKKER-X4 is ideal both for town use and in the mountains!


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