Freelance author & gadget tester

I'm the "boomer of the team" at Smartzone.de. My enthusiasm for tech started back in the 1980s, when computers were still expanded with a soldering iron and smartphones were pure science fiction. What's stayed is the joy of tinkering, trying things out, and figuring out what technology can actually do.

My time online started about 20 years ago on handy-faq.de, where I've since racked up close to 5,000 posts. Later I continued on the Android-Hilfe.de forum, adding roughly 4,000 more there. Since March 2023 I've also been writing occasionally for the ANKER.blog. Over that whole span I've also written countless tests and reviews for online marketplaces such as Amazon — only a small, hand-picked selection of those is publicly visible there.

By profession I'm a lecturer in mathematics, IT, and electrical engineering. In my free time I test pretty much anything with a plug, a battery, or a processor. My standard is simple: technology has to hold up in everyday use and be explained clearly. So I don't just rely on manufacturer claims — I measure things myself and try them out.

My focus is on devices that can be tested hands-on and occasionally pushed to their limits in everyday use. That includes 3D printers and accessories, laser engravers, power stations, robotic mowers, and chargers or power supplies.

• OccupationLecturer in mathematics, IT, electrical engineering; company data protection & laser safety officer
• Focus areas3D printing, laser engraving, power stations, robotic mowers, charging tech
• Also active atSmartzone.de, ANKER.blog, Amazon
• MethodOwn measurements, before/after and stress tests instead of just copying spec sheets
• Attends annuallyGlobal Connect Berlin, "Show Stoppers" Berlin, IFA Berlin, formnext Frankfurt/Main