Same memonic give different wallet adress.

[ekumahost]

I truly need an explanation.
same mnemonic gave different wallet address on myTonWallet (https://mytonwallet.io/) and this SDk.
I have used same mnemonic here:

let wallet = WalletContractV4.create({ workchain, publicKey: keyPair.publicKey });
console.log(wallet.address);

this address I get is: EQCpWkFHCsBCBsmSchzF23Uq0tIA1_RtvVkqUiKys7cMa4tV
converted to non-bounce is: UQCpWkFHCsBCBsmSchzF23Uq0tIA1_RtvVkqUiKys7cMa9aQ

but the same mnemonic gave wallet on myTonWallet: UQCY5izJWx2NxdZub41y9JUWE2MXDHVxW_PPU4u38h96uBL4
all these look strange as I wish to programmatically get the balance of my Ton Wallet address and it return 0 even though funded.
can someone explain this?

[ekumahost]

jut found that my mnemonic has multiple wallet, so how do i programatically select the wallets, since its showing one as default..

[ekumahost]

how i do make sure the code here use the w5 wallet version?

[Hephaestus-V]

In ton blockchain all wallets are in the form of smart contracts so you have to make instance of wallet V5 instead of V4 to get address of w5 version .