Bank of Yokohama (横浜銀行) vs Sumitomo Mitsui Banking Corporation (三井住友銀行): which is better? Comparison 2026

By our public methodology Bank of Yokohama (横浜銀行) scores 80 out of 100 and Sumitomo Mitsui Banking Corporation (三井住友銀行) scores 77. Below: the factors and facts where they differ, each fact with its source.

Banks in Japan 2026: a ranking built on verified facts How we rank

Score breakdown

Bank of Yokohama (横浜銀行)Sumitomo Mitsui Banking Corporation (三井住友銀行)
Safety6070
Digital services8657
Products100100
Transparency9698

Pros and cons

Bank of Yokohama (横浜銀行)

  • Wide range of products for private customers
  • Long track record as a licensed bank
  • Member of a deposit protection scheme
  • Has a mobile app

Sumitomo Mitsui Banking Corporation (三井住友銀行)

  • Wide range of products for private customers
  • Long track record as a licensed bank
  • Holds its own current rating from a recognised agency
  • Publishes annual reports

Facts side by side

FactBank of Yokohama (横浜銀行)Sumitomo Mitsui Banking Corporation (三井住友銀行)
Licensed since1920 boy.co.jp1876 smbc.co.jp
Deposit protectionYes boy.co.jpNot verified
Agency ratingNot verifiedYes smfg.co.jp
Annual reports onlineNot verifiedYes smfg.co.jp
Mobile appYes boy.co.jpYes smbc.co.jp
Open an account onlineYes boy.co.jpYes smbc.co.jp
Instant paymentsYes boy.co.jpNot verified
24/7 supportNot verifiedNo smbc.co.jp
Retail lines offered (of 6)6 boy.co.jp6 smbc.co.jp
Tariffs onlineYes boy.co.jpYes smbc.co.jp
Deposit rates onlineYes boy.co.jpYes smbc.co.jp
Complaints procedure publishedYes boy.co.jpYes smbc.co.jp
Branches in the country202 boy.co.jp455 smbc.co.jp

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