RugOne Xever 8 review: An extremely rugged phone with a replaceable battery, but it's not quite the next-generation device I hoped for
RugOne Xever 8: 30-second review While this phone won’t make our best rugged phone collection, what it offers might be perfect for some customers, and it is reasonably affordable for a phone with a swappable battery. RugOne is Ulefone's premium rugged sub-brand, launched in late 2025. It targets buyers who want a genuinely capable device rather than a cheap, rough-and-ready handset. The Xever 8 is the entry point to the second generation of that vision. It arrived in May 2026 and carries forward the headline idea from the Xever 7 series: a battery you can swap without powering down the phone. That concept matures here into what RugOne calls Swappable Battery 2.0. The claim is that critical apps stay running throughout the swap, and within quite narrow criteria, it achieves that. I can confirm that the Xever 8 ships with two 4,800mAh batteries and a charging dock in the box. For field workers ...