カステラ王子

@castella555

Est. 2009·Japan·Japanese·~1 vids/wk

New on TrySpansa

カステラ王子 is a Tech YouTube creator with 61K subscribers and 23.1M total views. The channel covers gadget reviews, smartphone reviews, budget gadgets, tablet reviews, gaming tablets. Active for 17 years, the channel publishes about 1 video per week. Videos average 17.9K views each. Based in Japan, the channel's primary language is Japanese. YouTube channels with 50K–500K sub channels typically charge between $1,000 and $15,000 per sponsored video. Book a sponsorship directly on TrySpansa.

61,000Subscribers

1,291Total Videos

23,117,153Total Views

Source: YouTube Data API

Views / Video284K

Impressions1.2M

Age Demographics

13-17

18-24

35%

25-34

28%

35-44

16%

45-54

55-64

65+

Gender Split

Male 62%Female 36%Other 2%

Core: Male 18-24

Top Countries

🇺🇸United States

28%

🇬🇧United Kingdom

18%

🇧🇷Brazil

12%

🇮🇳India

🇩🇪Germany

Traffic Sources

34%

Suggested

24%

External

14%

Browse

12%

Content Performance

128KAvg Views

4.2%CTR

+1.2KNet Subs

3:42Watch Time

Subscriber Growth

6 mo agoToday

Device Split

Desktop

48%

Mobile

34%

Tablet

11%

Watch Time

8:42Avg Duration

42%Retention

2.1MHours

6.8Views/Visit

Content Type

Long-form

55%

Shorts

28%

Live

12%

Members

Free · 10 seconds · No credit cardSee カステラ王子’s audience data

Niches

Tech

About

自称、格安スマホが大好きな者です😊 スマホを中心に気になるガジェットを紹介しています🥺 最近では電動キックボードや、テレビのレビューも挑戦しました！趣味から始めたYouTubeチャンネルですが、皆さんの応援やコメントを頂けると大変嬉しく思います。これからもどうぞよろしくお願いします。 👇レビュー案件等のご連絡先はこちらへ ※お仕事の依頼なども受け付けております。気軽にお問い合わせください。 👇過去の実績動画 OPPO様ハイセンスジャパン様 y.u mobile様 NEW LIFE MOBILE様 FPD様 TCL様 ---------------------------------------- 当チャンネルでは、Amazon.co.jpを宣伝しリンクすることによってサイトが紹介料を獲得できる手段を提供することを目的に設定されたアフィリエイトプログラムである、Amazonアソシエイト・プログラムの参加者です。

Recent Videos

約2万円のコスパ最強 8インチタブレット【NAUIX N803S】アンチグレア加工でディスプレイの没入感が半端ない！

2万円以下コスパ最強出ました！【FPD 11インチタブレット】WEB閲覧、動画視聴にピッタリ！

衝撃！特大タブレット【KTC MEGAPAD 32インチ】セカンドテレビとしても良いぞ！！

買え！なんでこんなに安くなるの？XIaomiのUltraが大変なことになってます！？

史上最強メガネ【Rokid AIスマートグラス】カメラ＆ディスプレイ搭載！まさに未来のデバイスです！！

これ買いです！12インチ大画面コスパ最強タブレット【RebotAi AF12】長期２年保証、IP54も採用！！

長期保証＆専用ケースが無料になる特典付き【AOC M21】11インチのコスパ最強タブレットが登場！！

テスラで走行中にYoutubeを観る方法【Tesor】スマホと連携すれば視聴可能！！特別な改造は不要！ (ModelY)(Model3)

Channel data updated August 2026

youtube.com/@castella555

Open

Channel Videosカステラ王子

Sponsorship Pricing

This creator hasn't set their rates yet. Estimate typical rates for their niche:

Rate Calculator

TrySpansa Original

Enter your channel stats to estimate sponsorship rates.

01Niche

Search niches and tags

02Avg views per video

03Audience region

04Subscribers

YouTube Data API: 61,000 subscribers

05Content audience

Rates are TrySpansa estimates based on industry data. Not sourced from or derived from YouTube.

ROI Estimate

TrySpansa OriginalTech

Your Data

Avg views per video

Creator hasn't set this — enter your estimate to see projections

Your budget ($)

No rates set — enter your expected sponsorship cost

Cost per 1,000 Views

Meta Ads (SaaS)$8.75

Mesha 2025

Enter views and budget above to see cost comparison

Estimated Clicks

Enter avg views above to see click estimates

01Avg. Profit per Sale ($)

Your net profit from a typical sale, after costs

02Conversion Rate (%)

Using Tech benchmark: 3.6% (Electronics & Appliances) · Skailama 2026

03Expected Purchases / Year

Using Tech benchmark: 1.6× /year · Beans 2021 freq × Bluecore/MobiLoud RPR

Enter avg views above to estimate conversions

Methodology & sourcesNot sourced from YouTube

● Free · No credit card required

Estimated pricing — negotiate directly

Topicsclassified by TrySpansa

gadget reviews smartphone reviews budget gadgets tablet reviews gaming tablets chinese gadgets budget technology tech unboxing product comparisons value for money gadgets japanese language tech affordable electronics reviews

Resources

The Brief Isn't Dead. Unstructured Briefs Are. →NY Synthetic Performer Law: AI Clauses Your Deal Needs →Creator Payment Rails 2026: 5 Compared (Plus 1 Imposter) →

Related Creators

MaviGadget

45,800,000 subs

Tech Master

32,900,000 subs

Technical Guruji

23,700,000 subs

DEV Ke Tech

23,600,000 subs

Shreemani Tripathi

22,600,000 subs

Marques Brownlee

21,100,000 subs

MaviGadget

45,800,000 subs

Tech Master

32,900,000 subs

Technical Guruji

23,700,000 subs

DEV Ke Tech

23,600,000 subs

Shreemani Tripathi

22,600,000 subs

Marques Brownlee

21,100,000 subs

MaviGadget

45,800,000 subs

Tech Master

32,900,000 subs

Technical Guruji

23,700,000 subs

DEV Ke Tech

23,600,000 subs

Shreemani Tripathi

22,600,000 subs

Marques Brownlee

21,100,000 subs

Similar Japanese Tech Creators

THE オトウサンノヒミツキチ / お父さんの秘密基地

119,000 subs

こーへい by ホリック TV / HORICK TV

114,000 subs

ERESTAGE LAB

109,000 subs

あすか修繕堂

107,000 subs

UZUMAX

105,000 subs

深掘りTV

102,000 subs

THE オトウサンノヒミツキチ / お父さんの秘密基地

119,000 subs

こーへい by ホリック TV / HORICK TV

114,000 subs

ERESTAGE LAB

109,000 subs

あすか修繕堂

107,000 subs

UZUMAX

105,000 subs

深掘りTV

102,000 subs

THE オトウサンノヒミツキチ / お父さんの秘密基地

119,000 subs

こーへい by ホリック TV / HORICK TV

114,000 subs

ERESTAGE LAB

109,000 subs

あすか修繕堂

107,000 subs

UZUMAX

105,000 subs

深掘りTV

102,000 subs

See カステラ王子’s insightsFree · 10 seconds · No credit card

カステラ王子

Audience Insights for カステラ王子

Niches

About

Recent Videos

Sponsorship Pricing

Rate Calculator

ROI Estimate

Topicsclassified by TrySpansa

Resources

Related Creators

Similar Japanese Tech Creators