10 Best Tech YouTubers in Japan in 2026
Two of the biggest names on this list don't accept sponsorship money at all — one of them walked away from ¥41 million a year in deals to keep his opinions his own. Spend enough time in Japanese tech YouTube and you understand why: the audience here treats every review as a suspect until proven otherwise, and 案件？ — "is this a deal?" — is the first comment under any video that praises anything.
So it surprises people when I say this is one of the best markets in the world for paid creator work. The catch is what "paid" has to mean. Every successful partnership in this article has the same shape: the brand paid for the creator's own process, run on the creator's own terms — a walkthrough checklist, an assembly-on-camera habit, a workflow test — and disclosed it plainly. The audience doesn't punish money. It punishes scripts. One channel on this list drove more than ¥80 million in tracked Amazon sales in a single year, which tells you what that undamaged trust converts into.
Here are the ten channels I'd put in front of a tech brand entering Japan this year, and what each partnership teaches about doing this properly. Subscriber counts are point-in-time snapshots from early September 2026 and move daily.
10 Best Tech YouTubers in Japan in 2026
1. Saki's "AI de Ee yan" (【さき】のAIでええやん。) (@saki_AI_eyan)
127K subscribers
Saki is the newest channel on this list and the fastest-moving. She opened in June 2025 and crossed 127K subscribers in about fifteen months with only 82 videos — a pace that says more about timing than volume. Japan's office workers are under pressure to adopt AI tools, and Saki teaches ChatGPT, Gemini, Claude, and Google AI Studio in plain Kansai-inflected Japanese, aimed at people who find the topic intimidating. Her audience is exactly the demographic every SaaS and AI company in Japan is trying to reach: curious, non-technical, ready to pay for whatever finally makes the tools click.
Rather than one-off promotions, her commercial layer runs through her company, which offers AI development and corporate AI training to enterprises — she is effectively her own case study in converting educational content into B2B pipeline. For an AI or productivity brand, the honest trade-off is track record: fifteen months of history means the audience relationship is young. The growth curve is the bet.
2. TAKOMARU (たこまる) (@Takomaruuun)
671K subscribers
Takomaru built 671K subscribers on gaming gadgets, desk setups, and a recurring series where viewers submit their own gaming rooms for review — a format that turned his comment section into a community with homework. Then, in August 2025, he did the most interesting thing any creator on this list has done: he announced he would no longer accept paid promotion deals, disclosing that they had earned him ¥41 million in 2024 alone. His reasoning was blunt — a paid review is one where he can't say what he thinks.
Watch what that decision did to his channel. Every review he publishes now carries an implicit certificate: nobody paid for this opinion. When he tells 671K subscribers a gaming monitor is worth it, the recommendation lands with the full weight of a man who visibly forfeited eight figures a year for the right to say the opposite. Comment sections on gadget channels in Japan are usually a suspicion audit — 案件？ (is this a deal?) is the reflex question. His no longer gets asked it.
That's the transferable lesson: the strongest endorsement in this market comes from a creator who can't be bought, which means the only way to get it is to build something he'd endorse anyway.
3. AKIYA MOVIE (@AKIYAMOVIE)
Approx. 279K subscribers
AKIYA is a working film director — movies, music videos, commercials — who happens to run one of Japan's best channels on cinematography, color grading, and camera craft. That professional standing is why his brand relationships look different from everyone else's. Sony features him in its official Creators' App tips series on sony.jp and has used him as an instructor at its filmmaking bootcamps; Blackmagic Design profiled him in its creator portfolio series, and he teaches DaVinci Resolve as a certified trainer. In September 2025, Apple CEO Tim Cook spent an afternoon with him at Hie Shrine in Tokyo watching him shoot on iPhone 17 Pro — Cook posted about it himself.
For camera and creative-tool brands, AKIYA is the education play: his audience is not gadget browsers but working and aspiring videographers making four-figure equipment decisions.
4. Kazumasa Watanabe (ワタナベカズマサ) (@WatanabeKazumasa)
Approx. 420K subscribers
Watanabe reviews smartphones, cameras, and audio gear from his home in Sapporo, with an ex-systems-engineer's habit of explaining why a spec matters in language a first-time buyer can follow. That reputation is why Google put him in the room for one of its biggest retail moments in years. When Google Store Omotesando opened in August 2026 — the company's first flagship outside the United States, landing in its 25th year in Japan — Watanabe was invited for a paid partnership vlog, walking the floors as the audience's proxy: hands on the Pixel 11 lineup, the points he'd actually test on each device, the Pixel Studio AI experience, the repair counter most coverage walked straight past.
The mechanics are worth copying. A store opening generates one day of news coverage; a trusted reviewer's walkthrough generates a durable answer to "is it worth visiting?" that keeps working for months. Google didn't buy a script — it bought his checklist, and let him run it inside the building.
5. Mizu Ojisan (みずおじさん) (@mizuojisan3)
600K subscribers
A former systems engineer in his late forties, broadcasting iPhone, iPad, and Mac tips from Kakuda, a small city in Miyagi Prefecture — and quietly one of the highest-converting channels in Japanese tech. His channel description discloses Amazon affiliate sales generated through his videos: over ¥10 million in 2022, over ¥50 million in 2023, over ¥80 million in 2024. His audience doesn't watch him for entertainment; they watch him to decide what to buy, and then they buy it.
His most distinctive partnership isn't a gadget brand at all. In July 2025, Kakuda City appointed him its official PR ambassador — a municipality signing a tech YouTuber to carry its story nationally. Attended WWDC as a developer, published in Mac Fan. If your product serves Japan's enormous 40-plus Apple user base, this is the channel that reaches them without translation.
6. Kazu Channel (カズチャンネル) (@kazuch0924)
1.83M subscribers
The veteran. Kazu has been uploading since 2010 from Fukui, in his unhurried Fukui dialect, across gadgets, DIY, an old-house renovation, camping, and daily life — and at 1.83M subscribers he is the biggest channel on this list by a wide margin. He was ranked second in all of Japan for number of companies engaging him for tie-up videos back in 2017 (CA Young Lab × kamui tracker), and the deals never stopped fitting because his reviews keep their shape: KDDI's povo 2.0 tie-up worked because he reviewed it the way he reviews everything, as a second-line plan for a specific kind of user, drawbacks included. His fifteenth-anniversary book hit #1 on Amazon in June 2026.
Kazu is what reach with retained trust looks like after fifteen years. For a brand, he is the mass-awareness pick. The Sihoo partnership shows the other side of his range. Sihoo makes ergonomic office chairs that undercut the big-name incumbents on price, and it needed exactly what Kazu offers: a reviewer whose audience isn't chair enthusiasts. His sponsored review treated the chair the way he treats everything — assembly on camera, the adjustment points that matter for long sitting, where it earns its price and where it shows it. A specialist channel would have benchmarked it against an Aeron; Kazu benchmarked it against the sore back of a normal person who works at a desk. For a challenger brand, that's the more valuable comparison, because that's the customer actually deciding.
7. Thomas Gadgemaga (トーマスガジェマガ) (@ThomasGadgemaga)
Approx. 470K subscribers
Thomas reviews smartphones and carrier plans from behind a mask, in a fast, opinionated, numbers-first style, backed by a blog that was drawing hundreds of thousands of monthly readers before YouTube. A former ministry civil servant from Nara, he built his following on exactly the content brands find hardest to buy: which SIM plan is actually cheapest, which mid-range phone embarrasses the flagship. His channel currently states he does not accept promotion deals — worth knowing before your agency emails him.
I'd still keep him on the map, for the same reason as Takomaru: channels like his set the reference opinion that sponsored coverage elsewhere gets measured against. If Thomas independently rates your phone well, every paid placement you run in Japan works harder.
8. Sagara Gouchi (さがらごうち) (@SagaraGouchi)
Approx. 220K subscribers
Sagara is the marketer's creator: Tohoku University engineering degree, then an ad agency, then LINE Yahoo, building his channel as a side project for seven years before going independent. It shows in the work — his reviews of home appliances, lifestyle gadgets, and everyday tools are structured like conversion pages, and his “things I'm glad I bought” formats are built for the exact moment a viewer is ready to purchase. TCL has become a recurring fixture: he has reviewed its new Mini LED television lineup on-camera year after year, most recently the Q7D Pro in June 2026, each time anchoring the same argument — picture quality that undercuts the incumbents on price.
The lesson is repetition. A creator who reviews your product annually compounds; each new video inherits the credibility of the last one.
9. Tobalog_tokyo (トバログ) (@tobalog_toba)
Approx. 200K subscribers
Toba Tsuneaki describes himself as “the person on the opposite shore from minimalists” — a collector of white gadgets and beautiful tools whose desk tours and room tours defined the visual grammar half of Japan's desk-setup scene now writes in. He ran a blog for years before YouTube, worked in PR and marketing agencies, and has delivered over fifty sponsored articles and collaborations, from Isetan to Mercari.
That is the ceiling of creator collaboration: not a mention, not even a co-branded SKU, but a creator's taste shaping the product roadmap, with the brand proudly telling everyone it happened.
The Even G2 partnership shows why brands with restrained products seek him out specifically. Even Realities builds the smart glasses that subtract: no camera, no speakers, a 36.5-gram titanium frame that reads as ordinary eyewear, with a single discreet display floating in the lens. That is a product argument only a design-first reviewer can make properly, and Tobalog's review made it his way — the glasses as an object on the desk and on the face before a spec sheet, then the features that matter for a working day, including Terminal Mode, which streams a Claude session into the lenses so he could run AI tasks by voice, hands still on the keyboard, phone still in the drawer. The productivity claim lands harder coming from someone whose entire channel is about owning fewer, better-considered things.
10. Keisuke Takasawa (高澤けーすけ) (@KeisukeTakasawa)
Approx. 240K subscribers
Takasawa is a Sophia University graduate and former Yahoo! JAPAN digital marketer who turned a gadget blog into a career as a camera and vlog creator — soft-spoken, precise, beginner-friendly, the person viewers trust with their first serious camera purchase.
The UGREEN partnership shows what that camera credibility is worth beyond cameras. UGREEN's NASync DXP4800GT is network storage built for video people — four bays, dual 10GbE, an SD slot on the front for dumping cards straight off a shoot — and UGREEN paid Takasawa to review it rather than an IT channel, because the purchase decision doesn't live with IT people. It lives with creators drowning in footage. His review sold the workflow, not the spec sheet: where the card goes after a shoot, editing 4K over the network, what it replaces in a subscription cloud bill. The transferable lesson for any infrastructure brand: find the creator who owns the problem, not the product category.
CONCLUSION
Run back through the ten and notice what the brands actually bought. Google bought Watanabe's testing checklist and let him run it through their new store. Sihoo bought Kazu's sore back and his screwdriver. UGREEN bought Takasawa's post-shoot workflow; Even Realities bought Tobalog's eye; TCL bought Sagara's annual verdict, knowing it would have to earn it again the following June. Nobody on this list was paid to read anything aloud. And the two creators who take no money at all — Takomaru and Thomas — aren't the exceptions to that rule. They're the reason it exists: they set the honesty baseline every sponsored video in this market gets graded against.
If I'm briefing a tech brand entering Japan in 2026, the instruction fits in one sentence: pay for the creator's process, not their words. The reach, the conversions, the ¥80 million in tracked sales — all of it is downstream of an audience that pressed play already believing the verdict wasn't for sale.
Frequently Asked Questions
Who is the biggest tech YouTuber in Japan?
By subscribers, Kazu Channel (@kazuch0924) leads this list at 1.83M. Kazu has uploaded since 2010 from Fukui, spanning gadgets, DIY, and daily life, and was once ranked second in Japan for the number of companies engaging him for tie-up videos. His fifteenth-anniversary book hit #1 on Amazon in June 2026.
Do Japanese tech YouTubers accept paid brand partnerships?
Most do, with plain disclosure — but two of the biggest names on this list don’t. Takomaru stopped accepting paid promotion deals in August 2025, disclosing they had earned him ¥41 million in 2024, and Thomas Gadgemaga states on his channel that he doesn’t take promotions. Their independence sets the honesty baseline that every sponsored video in the market gets graded against.
What kind of brand partnership works best with tech YouTubers in Japan?
Partnerships that pay for the creator’s own process rather than a script. The examples in this article include Google inviting Kazumasa Watanabe to run his testing checklist through the new Google Store Omotesando, Sihoo commissioning Kazu Channel’s assembly-on-camera chair review, UGREEN paying Keisuke Takasawa to review its NAS as a video-workflow tool, and Even Realities working with Tobalog on a design-first smart glasses review.
Which Japanese tech YouTuber should AI brands work with?
Saki (@saki_AI_eyan) is the dedicated AI educator on this list — teaching ChatGPT, Gemini, Claude, and Google AI Studio to non-technical office workers, and growing to 127K subscribers within about fifteen months of opening in June 2025. Tobalog’s Even G2 review also carried an AI productivity angle, demonstrating a Claude session streamed into smart glasses.
Do these channels actually drive sales?
The clearest number in the article belongs to Mizu Ojisan: his channel description discloses Amazon affiliate sales generated through his videos of over ¥10 million in 2022, over ¥50 million in 2023, and over ¥80 million in 2024. In a market where the audience presses play already trusting the verdict, recommendations convert.
