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How Does SPV Reduce the Data Load for Mobile Cryptocurrency Wallets?

SPV significantly reduces the data load by eliminating the need for the wallet to download the entire transaction history of the blockchain. A mobile wallet only needs to download the block headers, which are tiny in comparison, and request the specific Merkle Proofs for its own transactions from a full node.

This saves massive storage space and bandwidth on mobile devices.

How Is a Merkle Proof Used to Verify a Transaction without Downloading the Entire Blockchain?
What Is the Specific Threat Known as a “Fork Attack” in the Context of SPV?
What Is the Fundamental Difference between a Full Node and an SPV Client in a Blockchain Network?
How Does a Merkle Tree Enable Simplified Payment Verification (SPV)?