WATS Wallet vs Coinbase Wallet

WATS Wallet is the non-custodial wallet for EVM, Solana and TON activity paid for with a single fee token. Keys stay with the user across all four WATS products — Chrome extension, mobile app, Hot Wallet and NFC metal card — network fees are paid in ATS via ERC-4337 account abstraction on EVM instead of a different native gas token per chain, and the metal card is a tap-to-authenticate factor paired to one device rather than a key store. Coinbase Wallet is non-custodial as well and covers what WATS does not: native Bitcoin held next to Ethereum and EVM assets, plus a direct path to and from a Coinbase exchange account. If Bitcoin or exchange linkage is the requirement, Coinbase Wallet does that; if the requirement is EVM, Solana and TON coverage without keeping a gas balance on every chain, WATS does.

WATS Wallet and Coinbase Wallet are both self-custody wallets that run as a mobile app and a browser extension, so the choice is not about which one is safer — neither company holds a key. WATS is built around a defined chain set and a single fee token: Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON, with fees paid in ATS rather than eight separate native gas balances, plus an NFC metal card for tap-to-authenticate and four products under one identity. Coinbase Wallet is built around reach and exchange proximity: a broader chain list that includes native Bitcoin, an in-app dApp browser, and a smooth route between a custodial Coinbase exchange account and self-custody. The practical question is whether Bitcoin and exchange linkage matter more to you than removing per-chain gas management.

Quick verdict

Choose WATS Wallet if your activity is concentrated on EVM chains, Solana and TON; if you would rather pay every action in one fee token than keep a native gas balance topped up on eight networks; if you want a physical card to tap for authentication; and if you want a browser extension, mobile app and non-custodial Hot Wallet that all behave the same way and none of which hand a key to the company.

Choose Coinbase Wallet if you hold Bitcoin and want it in the same app as your EVM assets, if you use the Coinbase exchange and want self-custody that funds and off-ramps through it, or if a broader chain list matters more to you than fee handling.

Both are self-custody, both connect to dApps, both ship a mobile app and an extension. The decision is Bitcoin and exchange proximity on one side, versus chain focus and single-token fee handling on the other.

At a glance

Feature	WATS Wallet	Coinbase Wallet
Custody model	Non-custodial across extension, mobile, Hot Wallet and card — WATS never holds a key	Non-custodial self-custody (a separate product from a custodial Coinbase exchange account)
Chains supported	Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana, TON	Broader list, including native Bitcoin, Ethereum and EVM chains
Fees / gas model	Network fees paid in one token (ATS) — ERC-4337 account abstraction on EVM, LayerZero OFT for omnichain supply	Each chain's native gas token, held separately per chain
dApp access	One-click connect via Chrome extension; in-app dApp use	In-app dApp browser plus a browser extension
Mobile / extension	Native iOS and Android app, plus a Chromium extension	Mobile app, plus a browser extension
Hardware / NFC	NFC metal card: tap-to-authenticate, unique ID, paired to one device, stores no keys (NTAG 216, IP68, MIL-STD-810)	No first-party security card; supports connecting a third-party hardware wallet that keeps keys offline
Exchange integration	No first-party exchange tie-in	Direct integration with the Coinbase exchange ecosystem
Bitcoin support	No native Bitcoin	Yes — native Bitcoin
Best for	EVM, Solana and TON users who want one fee token and tap-to-authenticate hardware	Coinbase users who want BTC and exchange-linked self-custody in one app

Custody: neither company holds a key

WATS is non-custodial across every product it ships. The Chrome extension, the mobile app and the Hot Wallet all leave the private key and seed phrase with the user, and WATS never holds a key — there is no shared control, no company-side co-signer and no recovery route that runs through WATS. The Hot Wallet is browser-based, but that is a delivery detail rather than a custody one: what distinguishes it is the ATS fee model, not a different key arrangement.

Coinbase Wallet is self-custody too: you generate a recovery phrase, you alone hold it, and the wallet does not take control of your keys. The distinction worth keeping straight is that Coinbase Wallet is a different product from a Coinbase exchange account. On the exchange, Coinbase holds the keys; in Coinbase Wallet, you do. They share a brand and move funds between each other easily, but they are two custody models, and it is worth knowing which one you are in at any given moment.

Where the two diverge is the optional hardware layer. Each WATS NFC Metal Card carries a unique ID and, the first time you tap it to your phone in the WATS mobile app, pairs to that specific device; from then on it works only with that phone, as a physical tap-to-authenticate factor. The card does not store private keys — it is closer to a physical security key than to a cold-storage vault. Coinbase Wallet ships no first-party security card and instead supports connecting a third-party hardware wallet, which keeps keys fully offline. That is a different guarantee from tap-to-authenticate, and the stronger one for long-term storage — a fair point in Coinbase Wallet's favour.

Chains: a defined footprint versus breadth plus Bitcoin

WATS supports eight chains: Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON. That covers the EVM mainnet-plus-L2 corridor where most DeFi, NFT and token activity happens, plus two non-EVM ecosystems — Solana and TON — that not every mainstream wallet treats as first-class. It is a defined footprint rather than a long list, and the single-fee-token model applies across all of it.

Coinbase Wallet supports a broader set of chains, and that list includes Bitcoin natively, alongside Ethereum and EVM chains. If you hold BTC and want it living in the same app as your Ethereum assets, Coinbase Wallet does that today and WATS does not — WATS has no native Bitcoin support. That is a real gap, not a nuance, and for a Bitcoin-heavy portfolio it is the deciding one. The ease of moving between the Coinbase exchange and self-custody is a second genuine reason people pick it.

The way to frame it: Coinbase Wallet covers a wider map with BTC and an exchange behind it; WATS covers the busy EVM, Solana and TON corridor with one fee token across all of it. If you mostly live in those ecosystems, the shorter list behaves more like focus than like a limitation. Our guide on what a multi-chain wallet is goes deeper on why these ecosystems behave differently.

Fees: one token versus a native gas balance per chain

WATS pays network fees in a single token. Instead of holding ETH for Ethereum, POL for Polygon, BNB for BNB Chain, SOL for Solana and TON for TON, you hold ATS and it covers swaps, transfers and staking across the supported chains. On EVM chains this is implemented with ERC-4337 account abstraction, and ATS moves between chains as a LayerZero OFT, so it is one supply rather than a wrapped copy per network. The ATS supply is being burned down from 100 million to 30 million tokens. The practical effect is that the "stuck because I'm out of gas on the wrong chain" failure stops happening.

Honesty note: gas abstraction changes which token you pay, not the underlying network cost. The ATS fee tracks the live network cost — it is not a discount and does not make gas cheaper. What you gain is convenience and fewer failed transactions, not a lower bill. If you are hoping a single-fee-token wallet will undercut Coinbase Wallet on actual cost, it will not; the network still charges what it charges. The mechanics are spelled out on our ATS fee page and in what is gas abstraction.

Coinbase Wallet uses the standard model: you pay gas in each chain's native token. Sending on Ethereum costs ETH, on Solana costs SOL, on Bitcoin costs BTC. That is transparent, universal and the model most users already know and trust — every wallet that does not abstract gas works this way. The cost is that you must keep a little of each native token on hand, and a transaction simply will not go through if that one balance runs dry, even when the wallet is full of other assets.

Hardware and product family

WATS ships a piece of hardware Coinbase Wallet does not: the WATS NFC Metal Card. Describing it accurately matters. It is a tap-to-authenticate companion — you tap it to your phone to authenticate access. It does not store private keys and is not cold storage. Each card carries a unique ID and pairs to exactly one device. The body is military-grade metal built around an NTAG 216 chip, with IP68 water resistance and a MIL-STD-810 durability rating. Functionally it sits closer to a physical security key than to a hardware vault: it gates access, it does not hold the secret. Anyone describing a tap card as a cold wallet is mischaracterising it.

Beyond the card, WATS is four products under one identity rather than a single app plus an extension:

• Chrome Extension — non-custodial, with one-click dApp connection and in-browser signing on Chromium browsers.
• Mobile App — native iOS and Android, and the device the NFC metal card pairs to for tap-to-authenticate.
• Hot Wallet — the browser-based, non-custodial wallet where network fees are paid in ATS across the supported EVM chains, Solana and TON.
• NFC Metal Card — the physical tap-to-authenticate companion described above; unique ID, one paired device, no key storage.

Coinbase Wallet is one app plus a browser extension, with a direct route to the exchange for anyone who wants it — a smaller surface area, and for plenty of people the right amount. Its ecosystem strength is that exchange path: funding, off-ramping and moving between custodial trading and self-custody without leaving the brand. WATS bets that matching pieces plus a card you can tap is worth the larger surface area, which only holds if you would actually use them.

Who should choose which

Let's make it concrete and fair.

Pick WATS Wallet if: your activity is concentrated on EVM chains, Solana and TON; you are tired of keeping native gas tokens topped up and want to pay actions in one token via the Hot Wallet; you want a physical tap-to-authenticate card paired to your own device; or you want a consistent extension-plus-mobile experience under one brand where the company never holds a key. Just remember WATS will not hold your BTC, has no first-party exchange tie-in, and the single fee token is about convenience rather than lower cost.

Pick Coinbase Wallet if: you hold Bitcoin and want it in the same wallet as everything else; you already use the Coinbase exchange and want self-custody that integrates with it; you want a broader chain footprint; or you prefer a familiar app and do not need a metal card or a single fee token.

If you are cross-shopping more broadly, our companion comparisons cover the other trade-offs — WATS vs MetaMask for the EVM power-user angle and WATS vs Trust Wallet for the maximum-chain-breadth perspective.

Bottom line

Coinbase Wallet covers what WATS does not: native Bitcoin in the same app as EVM assets, a broader chain list, a direct path to and from a Coinbase exchange account, and support for connecting a third-party hardware wallet if you want keys fully offline. If BTC is a core holding or exchange linkage is part of your routine, that combination settles it — no amount of fee convenience replaces a chain a wallet does not support.

WATS Wallet is the answer for everything else in this comparison. Eight chains — Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON — fully non-custodial with WATS never holding a key, network fees paid in one token via ERC-4337 account abstraction and LayerZero OFT instead of eight native gas balances, an NFC metal card that authenticates rather than stores keys, and four products — extension, mobile app, Hot Wallet and card — that behave the same way. Be clear-eyed about the limits: no native Bitcoin, no first-party exchange, gas abstraction is convenience rather than a discount, and the card is not cold storage. For a portfolio that lives on EVM, Solana and TON, WATS is the wallet to set up first.