ITSub
Overview
ITSub (잇섭) is a representative South Korean tech YouTuber who gained great popularity through content that provides in-depth reviews of IT devices such as smartphones, laptops, and wearables. He does not disclose his real name and is known by the activity name 'ITSub'; he has operated the channel since the late 2010s and has grown into a creator with millions of subscribers today. With an accurate and candid review style, he has established himself as an information channel trusted by consumers.
Key Details
Channel Launch and Growth
ITSub opened a YouTube channel around 2017 and began posting IT device review videos. Initially, he drew attention with reviews of mid- to low-priced smartphones and accessories, and later expanded the review scope to flagship smartphones, laptops, tablets, smartwatches, and more. In particular, his approach of discovering 'value-for-money' products and clearly conveying pros and cons based on actual use experience contributed to expanding his subscriber base. Entering the 2020s, his subscriber count surged, and he established himself as one of the major channels in the domestic tech YouTube ecosystem.
Review Style and Characteristics
ITSub's reviews are based on thorough preliminary research and repeated testing. By presenting detailed items such as display color accuracy, battery endurance, heat generation, camera image quality, and software optimization through figures and video, he helps viewers objectively compare products. He is also famous for 'honest reviews' that point out shortcomings without hiding them, and he has built trust through transparency in clearly disclosing whether content is sponsored. The polished visual style and intuitive graphics are also cited as strengths of the ITSub channel.
Main Content and Popular Series
Representative content includes unboxing and in-depth reviews of the latest smartphones, comparative evaluations of laptops, reviews of smartwatches and wireless earphones, and buying guides for IT devices. In particular, comparative reviews of the Samsung Galaxy series and Apple iPhone series recorded high view counts and became talking points. He also draws attention for practical usage content such as 'ITSub's Tips' and quick first reviews immediately after new product announcements.
Influence and Awards
ITSub is evaluated as a figure with high influence among domestic tech YouTubers. His reviews influence consumers' purchase decisions and serve as a channel for delivering product improvement feedback to manufacturers. His YouTube subscriber count reaches millions, and his reviews are often cited by domestic and international IT media. Entering the 2020s, he has expanded his scope of activities by carrying out collaborations and joint projects with various brands.
Latest Trends
As of 2024-2025, ITSub is actively producing content dealing with the latest technology trends such as AI-equipped smartphones and laptops, foldable devices, and XR (extended reality) devices. In particular, on-device AI performance comparisons and reviews of features using generative AI have emerged as major new topics. He is also diversifying his channel operation method by combining short-form content using YouTube Shorts and live streaming with real-time communication. There is a trend of expanding contact points with the fandom through collaborations with domestic and international tech communities, offline fan meetings, and more.
Related Topics
- [[Tech YouTuber]]
- [[Smartphone review]]
- [[YouTube creator]]
- [[IT devices]]