
A brother's gift, a tutorial made during university, and a rejected consulting job turned a teenage hobby into a global tech channel. The giant working iPhone in Maini's basement is an unusually literal measure of how far that idea grew.

A childhood wish to take apart a thrift-store computer became a channel with millions of viewers. The more interesting build may be the company, crew, and curious world around it.
Arun Maini, known online as Mrwhosetheboss, is the UK's largest tech YouTuber with over 22 million subscribers and 8+ billion views. Born in Nottingham to Indian-origin parents, he turned down a PricewaterhouseCoopers offer after earning a First Class Economics degree from the University of Warwick to pursue YouTube full-time. He holds a Guinness World Record for the largest smartphone replica, has won two Streamy Awards for Technology, and is recognized globally for his witty, authentic reviews of smartphones and gadgets. He married Dhrisha Mehta in June 2024 and the couple are expecting their first child in August 2026.