Best Wallets for L2 DeFi in 2026 (Base, Arbitrum, Optimism)

WATS Wallet is the L2 DeFi wallet we recommend if you move between Base, Arbitrum and other EVM networks and want every action charged in ATS from one balance on BSC, so you hold no ETH on each rollup. It also puts Solana and TON in the same wallet and offers an optional NFC Metal Card as a physical tap-to-authenticate step. Choose Rabby if you want pre-sign transaction simulation on EVM chains and its prepaid GasAccount. Choose MetaMask if you want native Solana and Bitcoin next to EVM, with gas payable in tokens you hold on Arbitrum or Base. Choose Coinbase Wallet if most of your activity is trading on Base. Choose Zerion if a portfolio view across networks matters most.

Disclosure: WATS Wallet publishes this comparison, and WATS Wallet is our own product. We list it first, say plainly where it fits, and name the wallet that fits better where it does not. Competitor features were checked against each wallet's official site and help center in September and October 2026.

DeFi no longer lives only on Ethereum mainnet. Yield, swaps, perps and airdrop farming have spread across rollups such as Base, Arbitrum and Optimism, with Polygon and BNB Chain alongside, and an active DeFi user often moves between them in a single session. That movement is where much of the friction is: your wallet either smooths it out or makes you fight it on every chain. This roundup compares five wallets for cross-L2 DeFi: what each one does, how it handles fees on each rollup, and where its limits are. WATS Wallet is listed first because we make it, and the sections below say where each of the other four is the better choice. If you want the Base-only breakdown, see the companion piece best wallets for Base chain in 2026.

Quick answer: which wallet for L2 DeFi

Pick WATS Wallet if you move between Base, Arbitrum, Optimism and other EVM networks, want every EVM action charged in ATS from one balance on BSC, and want Solana and TON in the same wallet (MetaMask, Rabby and Coinbase Wallet do not support TON). It also suits you if a physical tap step from the optional WATS NFC Metal Card appeals to you. Pick Rabby if you want detailed pre-sign simulation, automatic chain-switching and a prepaid GasAccount balance for EVM networks, and you do not need Solana. Pick MetaMask if you want one wallet with native EVM, Solana and Bitcoin, and you are happy paying gas in a token you hold on the network you are using. Pick Coinbase Wallet if your activity is mostly spot trading on Base. Pick Zerion if you mainly want to see positions across networks in one screen. Match the choice to how far your DeFi actually travels and how you want to pay fees.

The cross-rollup gas pain (topping up native gas per L2)

Here is the friction that tends to surprise people. Base, Arbitrum and Optimism are all EVM rollups, but each one charges gas in ETH on that specific network. Bridging ETH to Arbitrum does not fund gas on Base or Optimism. So the moment you want to claim a reward on Optimism, swap on Base and farm a pool on Arbitrum in the same afternoon, you find you need a small ETH balance on each rollup, and the chain you want next is often the one with an empty gas tank.

That produces a familiar routine: bridge a little ETH to chain A, find chain B is dry, bridge again, pay bridge fees, wait for confirmations, and only then do the thing you came for. For active cross-L2 users it is death by a thousand top-ups. If you want the full picture of how L2 gas works, crypto gas fees explained walks through it. Several wallets now try to soften the problem, each in a different way and with a different scope, so fee handling is a real axis of difference alongside chain coverage. We compare the designs side by side further down.

How we compared (L2 coverage, fee handling, physical factor)

This is a qualitative roundup, not a benchmark table. We avoid prices, ratings, user counts and performance numbers, because they change constantly and precise figures in this category are usually marketing. Each wallet is judged on the questions that decide fit for cross-L2 DeFi:

• L2 coverage. Does it handle Base, Arbitrum and Optimism out of the box, plus other EVM chains such as Polygon and BNB Chain, and does the same wallet reach Solana, TON or Bitcoin if your activity wanders there?
• Fee handling. Can you pay fees without holding native ETH on every rollup, which tokens and networks does that cover, and where does the fee balance live?
• Transaction clarity. Before you sign, how clearly does it show what the transaction will do to your balances and approvals?
• Physical factor. Does the wallet ship a physical authentication factor of its own, or only connect third-party hardware?
• Custody model. Do you hold your own keys, and does any convenience feature change who can move funds?

All five are self-custody wallets where you control your keys. Each is a capable product used by DeFi users every day, and the differences below are about fit.

The wallets compared

WATS Wallet

WATS Wallet is a fully non-custodial wallet made of three products: a Chrome extension, an iOS and Android mobile app and an optional WATS NFC Metal Card. You generate and hold your own keys and recovery phrase in the extension and the app, and WATS never holds a key. It reaches Ethereum, Base, Arbitrum, Optimism, Polygon and BNB Chain plus other EVM networks, then Solana and TON, with send, receive, swap and bridge on each. MetaMask, Rabby and Coinbase Wallet do not support TON, so a TON position there means a second wallet and a second recovery phrase; we found no TON support on Zerion either. (Trust Wallet, which we do not review here, also covers EVM, Solana and TON.) The limit to know is that WATS Wallet has no native Bitcoin, while MetaMask and Coinbase Wallet both do.

The fee model is the main reason to consider it for rollup hopping. On EVM networks every action is charged in ATS instead of native gas, through an ERC-4337 paymaster, in the extension and the mobile app alike. All of it is debited from one ATS balance on BSC (BNB Chain), whichever EVM network the transaction runs on, so you do not need ETH on Base, Arbitrum and Optimism separately. Fees on TON are paid in ATS too; Solana sits outside this model and pays its own fees in SOL. Collected ATS is burned, taking supply from 100M toward a 30M floor; the ATS fee page has the details. To be precise about what this is: it changes which token you fund, not the underlying network cost; it tracks live network cost rather than discounting it; and it is not gasless, since you still need a funded ATS balance.

The third piece is the physical layer. The NFC Metal Card is a tap-to-authenticate factor, not cold storage. It holds no private keys, which stay in the WATS apps. You tap it to your phone to authenticate access or confirm a signature in the mobile app, and each card has a unique ID and pairs to exactly one device. It uses an NTAG 216 chip and is built to MIL-STD-810; the steel card is military-grade metal rated IP68. The other software wallets here ship no physical factor of their own: they connect third-party hardware, and Coinbase Wallet's Base Account also accepts a hardware security key as its passkey. Ledger or Trezor devices do a different job, because they store keys while the card does not. The security page covers how the model works.

Where it does not fit: WATS Wallet is not a trading terminal or an exchange, so if spot trading on Base is your main activity, Coinbase Wallet is built for that. If pre-sign simulation on every EVM signature is your top priority, start with Rabby. If native Bitcoin in the same wallet matters, MetaMask or Coinbase Wallet is the better fit.

MetaMask

MetaMask began as an EVM wallet and offers extensions for Chrome, Firefox, Brave, Opera and Edge plus mobile apps for iOS and Android. It covers the major rollups and any custom RPC network. It has also grown beyond EVM: native Solana arrived in May 2025, native Bitcoin in December 2025 (Native SegWit only so far, with no Bitcoin private-key import yet) and Tron in January 2026. TON is not supported, apart from wrapped TON as an ERC-20 on EVM chains.

On fees, MetaMask's gas-included transactions let you pay the network fee in an eligible token instead of the native one. Its Help Center lists Ethereum, BNB Smart Chain, Arbitrum, Polygon, Linea, Base and Tempo, so Arbitrum and Base are covered while Optimism was not on the list when we checked. The estimate includes a small MetaMask fee, Smart Transactions must be on, and the fee comes from a token balance you hold on the network of the transaction, not from one cross-chain balance. MetaMask has no physical factor of its own; it works with third-party hardware such as Ledger, Trezor and Keystone, and offers optional social-login backup that is still self-custodial. Choose it if you want native EVM, Solana and Bitcoin in one place. Choose WATS Wallet over it if you want TON, one fee balance across every EVM network, or a card tap.

Rabby

Rabby is built by DeBank and aimed at the multi-chain DeFi workflow this article is about. It recognizes which chain a dApp wants and switches for you, shows a pre-sign transaction simulation of what you will receive, spend and approve, and surfaces risk warnings. For someone moving between Base, Arbitrum and Optimism protocols all day, that clarity is useful. It is EVM-only: Rabby states that non-EVM networks, including Solana and Bitcoin, are not supported, so there is no Solana or TON. It runs as a browser extension for Chrome, Brave and Edge and as a mobile app on iOS and Android; a desktop app is still listed as in development.

Rabby is also the other wallet here with a single fee balance. Its GasAccount is a prepaid, USD-denominated balance that pays gas across its supported EVM networks, so you do not hold each chain's native token. The balance is held by Rabby, and it is a different design from an ERC-4337 paymaster: Rabby sends native gas to your address from the account before submitting your transaction. For hardware it integrates third-party devices such as Ledger, Trezor, Keystone and OneKey, and makes none of its own. Choose Rabby if simulation and a prepaid stablecoin-funded gas balance on EVM chains are what you want. Choose WATS Wallet over it if you want ATS fees from one BSC balance, Solana and TON in the same wallet, or a physical tap factor.

Coinbase Wallet

Coinbase Wallet is the self-custody wallet, separate from the Coinbase exchange app, and it does not require a Coinbase account. Its name has moved: Coinbase rebranded it as the Base app in July 2025 and reverted to Coinbase Wallet in September 2026, so you may still see Base app wording in help pages. It is now pitched as a multichain trading app, with in-app swaps on Base, Arbitrum, Optimism, Ethereum, Polygon, BNB Chain and others, plus limit orders and perpetuals in some regions. It supports Solana, and Bitcoin with limits (send and receive, no swaps yet), on recovery-phrase and email or social-login wallets. TON is not supported. The browser extension covers Chrome and Brave and does not support smart wallets.

Fee handling is narrow. Gasless swaps work on Ethereum and Polygon only, Coinbase sponsors small USDC sends on Base within monthly caps, and the Base Account smart wallet lets apps sponsor fees. None is a wallet-wide setting that lets you pay every rollup's fees from one balance. For physical factors, a Ledger can connect through the extension, and the Base Account passkey wallet accepts a hardware security key such as a YubiKey; Coinbase makes no card or device of its own. Choose it if you trade mostly on Base. Choose WATS Wallet over it if you want one ATS fee balance across Base, Arbitrum and Optimism, TON, or the NFC tap step.

Zerion

Zerion approaches cross-L2 DeFi from the portfolio angle. It shows balances, DeFi positions and history across Ethereum and its L2s in one interface instead of making you check each chain, and it is a self-custody wallet with swaps and dApp connections, available as a browser extension, web app and iOS and Android apps. Besides EVM it covers Solana, and added Tron in January 2026. We found no TON support and no native Bitcoin on Zerion's site; Bitcoin exposure comes only through wrapped tokens on EVM or Solana. Its transaction previews simulate what you will sign, and it supports Ledger as its only third-party hardware.

We found no general feature for paying fees in another token. Its ZERO Network, an Ethereum L2 with a paymaster that made some transactions free, was wound down in 2026, and on other chains gas is paid in the native token, so on Base, Arbitrum and Optimism you still hold ETH on each. Zerion is the right choice if the portfolio view across networks is your priority. Choose WATS Wallet over it if the fee-balance problem or a physical tap factor matters more.

Comparison table across Base/Arbitrum/Optimism

Qualitative only, checked against each wallet's official site and help center in September and October 2026. Use it to map each wallet to what you need across the rollups.

Wallet	Base / Arbitrum / Optimism	Beyond EVM	Fee handling across L2s	Physical factor
WATS Wallet	All three, plus Ethereum, Polygon, BNB Chain, Gnosis, Celo, Mantle and Cronos	Solana and TON; no native Bitcoin	Every EVM action charged in ATS from one balance on BSC; fees on TON also paid in ATS; Solana pays SOL	Optional NFC Metal Card: tap to authenticate, holds no keys
MetaMask	All three, plus custom EVM networks	Native Solana, Bitcoin and Tron; no TON	Gas-included transactions pay in a token held on that network (Arbitrum, Base; Optimism not listed)	None of its own; works with third-party hardware
Rabby	All three, with auto chain-switching	EVM only	GasAccount: prepaid USD balance held by Rabby, covering EVM networks	None of its own; works with third-party hardware
Coinbase Wallet	All three, with in-app swaps	Solana; Bitcoin with limits; no TON	Native gas per network; gasless swaps on Ethereum and Polygon only	None of its own; Ledger in the extension, hardware security key as passkey
Zerion	All three, with an aggregated portfolio view	Solana and Tron; no native Bitcoin found	Native gas per network	None of its own; Ledger only

Paying fees across L2s: how the designs differ

If the per-rollup gas dance is your main pain, these are the options we found, and each solves a different slice:

• WATS Wallet. Every EVM action is charged in ATS from one balance on BSC, regardless of which EVM network you transact on. It applies in both the extension and the mobile app. It does not extend to Solana, which pays SOL; fees on TON are also paid in ATS.
• Rabby GasAccount. A single prepaid balance in USD, funded with USDC or USDT, or with Apple Pay or Google Pay on mobile, that covers Rabby's EVM networks. Rabby holds the balance, and Apple Pay and Google Pay deposits cannot be withdrawn.
• MetaMask gas-included transactions. Pay the fee in an eligible token such as USDC on Base or Arbitrum, but the token has to sit on the network you are using.
• Trust Wallet FlexGas. Not one of the five wallets reviewed here, but relevant: it lets you pay gas in USDT or USDC on Arbitrum, Base and OP Mainnet for sends, again from a balance on that network.
• Coinbase Wallet. Gasless swaps on Ethereum and Polygon, plus sponsored small USDC sends on Base. No general fee-in-another-token setting.
• Zerion. No general equivalent that we found.

So the real split is where the fee balance lives. Rabby gives you one prepaid balance held by Rabby, MetaMask and Trust have you hold stablecoins on each network, and WATS Wallet uses one ATS balance on BSC with an ERC-4337 paymaster. Rabby's GasAccount is the other single-balance design, and if you would rather fund fees with stablecoins or Apple Pay and Google Pay on mobile, it is a reasonable pick. WATS Wallet is the one to consider if you want ATS-denominated fees, Solana and TON in the same wallet and a physical tap step. These designs change how you fund fees; for WATS Wallet specifically, the model is not a discount on network cost, so whether it is worth it depends on how much cross-L2 top-up juggling costs you today.

Connecting safely to L2 dApps

Whichever wallet you choose, the riskiest moment in L2 DeFi is not the swap but the signature. A common way wallets get drained is not a hack but a signature: a malicious approval, or a transaction that does something other than what the UI claimed. A few habits matter more than your wallet choice:

• Read what you are signing. Rabby and Zerion both preview what a transaction will do before you sign. Check that the token, amount and recipient match your intent before you confirm.
• Mind token approvals. Granting a protocol unlimited spending allowance is convenient and dangerous. Revoke approvals you no longer use, and prefer limited allowances where the dApp allows it.
• Verify the chain. Make sure you are connected to the rollup you think you are. Base, Arbitrum and Optimism look similar, and signing on the wrong one wastes gas at best.
• Confirm the dApp URL. Phishing clones of popular L2 protocols are common. Bookmark the real sites and connect only from those.
• Add a physical factor where you can. The WATS NFC Metal Card is a tap-to-authenticate layer paired to a single device. It holds no keys itself, but with it paired, authenticating access or confirming a signature in the mobile app takes a physical tap. A Ledger hardware wallet is the other route, and it connects to MetaMask, Rabby and Zerion too.

For a full walk-through of the connection handshake on any EVM chain, see how to connect your wallet to a dApp. Read more about the WATS approach on the security page.

Bottom line

WATS Wallet is the one we recommend if your DeFi moves across Base, Arbitrum, Optimism and other EVM networks and you want every EVM action charged in ATS from one BSC balance in the extension and the mobile app, with Solana and TON in the same non-custodial wallet and an optional NFC tap-to-authenticate factor. The honest caveats: it is a different fee token, not cheaper gas; Solana fees are paid in SOL while TON fees are also paid in ATS; it has no native Bitcoin; and the card is not cold storage. The alternatives each fit a different need: Rabby for EVM pre-sign simulation and a prepaid GasAccount, MetaMask for native EVM, Solana and Bitcoin with token-based gas on Arbitrum and Base, Coinbase Wallet for trading on Base, and Zerion for a portfolio overview across L2s. If your activity fits one of those, the matching tool is a sound choice. Start from the WATS download page or compare the Base-only picks in best wallets for Base chain in 2026.