Exhibit 15.3

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-257349) and on Form F-3 (File No. 333-265320) of Tuya Inc. of our report dated April 24, 2025 relating to the financial statements, which appears in this Form 20-F.

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/s/PricewaterhouseCoopers Zhong Tian LLP
Shanghai, the People’s Republic of China
April 24, 2025

普华永道中天会计师事务所(特殊普通合伙)

PricewaterhouseCoopers Zhong Tian LLP, 11/F PricewaterhouseCoopers Center

Link Square 2, 202 Hu Bin Road, Huangpu District, Shanghai 200021, PRC

T: +86 (21) 2323 8888, F: +86 (21) 2323 8800, www.pwccn.com