WATS Wallet vs MetaMask

WATS is a non-custodial wallet built as three products under one identity — Chrome Extension, Mobile App and a physical NFC Metal Card — and on EVM networks it pays fees in one token (ATS) instead of the chain's native gas. It covers Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON — Solana and TON transactions pay their own native fees, in SOL and Toncoin — and the user holds the keys throughout; WATS never holds a key. MetaMask is the older and more widely installed EVM wallet, and it does two things WATS does not: it supports Bitcoin natively, and it pairs with third-party hardware wallets such as Ledger, Trezor and Keystone. If your activity sits on EVM chains, Solana and TON, WATS removes more day-to-day friction; if Bitcoin has to live in the same wallet, or your keys have to sit on a separate offline device, MetaMask is the one that covers that.

WATS Wallet and MetaMask are both non-custodial wallets that ship as a browser extension and a mobile app and that cover EVM chains plus Solana. The differences are structural rather than cosmetic. WATS pays EVM network fees in a single token (ATS) using gas abstraction, adds TON, and includes a physical NFC Metal Card that authenticates access to the WATS apps. MetaMask keeps the conventional model — hold each chain's native gas token — and in exchange gives you native Bitcoin and pairing with third-party hardware wallets. This page compares them on chains, fees, custody, hardware and recovery, and says plainly where each one is the better answer.

WATS Wallet vs MetaMask at a glance

Feature	WATS Wallet	MetaMask
Products / form factor	Three products under one identity — Chrome Extension, Mobile App (iOS/Android) and a physical NFC Metal Card.	Browser extension (Chrome/Firefox/Brave/Edge) and a mobile app (iOS/Android); no official standalone desktop app.
Chains	Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON. No native Bitcoin.	Ethereum and EVM chains, plus native Solana and native Bitcoin. No TON.
Fee model	One fee token on EVM: ATS pays network fees on the EVM chains through ERC-4337 account abstraction. Your ATS balance sits on BSC (BNB Chain), so whichever EVM network the transaction runs on, the fee comes out of that one balance. Solana and TON pay their own native fees (SOL, Toncoin). It changes which token pays, not what the network charges.	Default accounts require holding each chain's native gas token (ETH/SOL/BTC); optional Smart Accounts can pay gas in an ERC-20 such as USDC or DAI on select EVM chains.
Physical / NFC card	Yes — an NFC Metal Card (military-grade metal, IP68, MIL-STD-810, NTAG 216) with a unique card ID that pairs to exactly one device and is tapped to authenticate. It does not store private keys.	No authentication card. The separately issued "MetaMask Card" is a Mastercard debit card for spending crypto, not a security device.
Custody & recovery	Fully non-custodial — the user holds the keys and WATS never holds a key. Recovery is the user's responsibility.	Self-custodial; recovery via one 12-word Secret Recovery Phrase. If it is lost, MetaMask cannot restore it either.
dApp access	dApp connection and in-browser signing through the WATS Chrome Extension on Chromium browsers (Chrome, Edge, Brave).	dApp connection and signing across EVM dApps; the most widely detected wallet interface on the web, so compatibility is rarely in question.
Hardware	The NFC Metal Card is a tap-to-authenticate factor bound to one device — closer to a physical security key than to a cold-storage vault. Keys stay in the WATS apps.	Pairs with third-party hardware wallets — Ledger, Trezor, Lattice, Keystone, NGRAVE, AirGap — on the extension, which keeps keys on a separate offline device. MetaMask sells no hardware of its own.

Custody: identical model, different second factor

Neither wallet is a custodian. WATS is fully non-custodial: the user holds the keys and WATS never holds a key — the same guarantee MetaMask makes with its Secret Recovery Phrase, and the same responsibility. Where they diverge is the optional second factor. WATS's is first-party: the NFC Metal Card carries a unique card ID, pairs to exactly one device on first tap, and is then required as a physical tap-to-authenticate step on that device. It does not store private keys and it is not cold storage — functionally it is a security key. MetaMask's is third-party hardware you source yourself: pair a Ledger, Trezor, Keystone or NGRAVE and your keys move off the phone or laptop entirely, which is a stronger isolation model than any authentication card can offer. If keys-fully-offline is your requirement, that is a genuine point for MetaMask; see what non-custodial actually means and how the NFC card's threat model differs.

One fee token instead of one per EVM chain

This is the clearest structural difference. On WATS, every action on an EVM network is charged in ATS: ERC-4337 account abstraction handles it on Ethereum, Arbitrum, Optimism, Base, Polygon and BNB Chain. The practical effect is that you stop maintaining a dust balance of ETH on Arbitrum and Base, the native gas token on Polygon and BNB on BNB Chain just to be able to transact. Solana and TON are fully supported for sending, swapping and bridging, but they sit outside the single-fee-token system: transactions there pay their own native fees, in SOL and Toncoin. One honest caveat: this is not a discount. The network still charges what it charges — ATS changes which token pays, not the underlying cost. Collected ATS is burned, so supply moves from 100M toward a 30M floor as the wallet is used. MetaMask's default accounts work the conventional way and require each chain's native gas token; its opt-in Smart Accounts can pay gas in an ERC-20 like USDC or DAI, but only on select EVM chains and only once enabled, so the per-chain top-up habit largely survives. Background: how gas fees work and the ATS fee model.

Chain coverage: complementary, not lopsided

WATS covers Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON from one identity, which is the set most everyday EVM, Solana and Telegram-ecosystem activity actually lives on — see EVM vs Solana vs TON. MetaMask covers Ethereum and EVM chains and now covers native Solana and native Bitcoin as well, all derived from a single 12-word phrase; it does not list TON. So the gap runs both ways: MetaMask has Bitcoin and WATS does not, WATS has TON and MetaMask does not. If you hold BTC and refuse to use a second app for it, that decides the question in MetaMask's favour on its own. If you do not, the chain lists overlap enough that fees and setup are the real deciders.

The NFC Metal Card, and what MetaMask offers instead

The WATS NFC Metal Card is built in military-grade metal to IP68 and MIL-STD-810, on an NTAG 216 chip, and each card has a unique ID. On first tap it pairs to exactly one device, and from then on it authenticates access to keys that live in the WATS apps. It is important to be precise about this: the card does not store private keys, so it is not a cold-storage vault and should not be compared to one — it is a physical authentication factor, closer to a hardware security key. MetaMask has no equivalent and does not try to; its answer is third-party hardware, and Ledger or Trezor pairing genuinely does something the card does not, which is take the key material offline. The "MetaMask Card" you may have seen advertised is a Mastercard debit card for spending crypto and plays no part in wallet security. More on the category: NFC crypto cards explained.

Ecosystem and recovery

MetaMask has the longer track record, the larger installed base and a long list of interface languages, and it is the wallet dApps test against first — an advantage worth naming plainly. WATS concentrates instead on keeping the extension, mobile app and NFC Metal Card consistent with each other rather than on maximising surface area. Recovery is the same story on both sides: self-custody means nobody can restore your access for you. MetaMask derives its EVM, Solana and Bitcoin addresses from one 12-word Secret Recovery Phrase; WATS keeps recovery in the user's hands too, with the card acting as a device-bound access factor rather than a backup. Neither model rescues you from losing your own backup.

Which should you choose?

Choose MetaMask if you need Bitcoin in the same wallet as your EVM assets, if you want to pair an existing Ledger or Trezor so keys sit offline, or if maximum dApp familiarity matters more than fee mechanics. Those are real reasons and they decide the question for some readers. For everyone else — assets on Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON, transacting often enough that per-chain gas top-ups are a chore — WATS is the recommendation: one non-custodial identity across three products, EVM fees paid in a single token via ERC-4337, and an NFC Metal Card that adds a device-bound tap-to-authenticate step without asking you to carry a second gadget. If Solana depth or raw chain count is your priority, the same comparison against Phantom and Trust Wallet is worth reading — but on fee mechanics, custody and a setup that stays consistent across devices, WATS is the wallet this comparison lands on.