Best Robo-Advisors 2026: 4 Top Platforms Compared

Which one is right for you?

1★ Best PickABest for Small BalancesFidelity Go

Best for smaller balances: no management fee under $25K, with Fidelity Flex funds listed at a 0% expense ratio.

Fidelity Go charges $0 under $25K and 0.35% above, which makes it the natural start for a small portfolio. It uses Fidelity Flex funds with a listed 0% expense ratio. The fee rises on larger balances, so revisit the math as you grow.

Fidelity Go

$0〜0.35%Reference price

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Fee

$0 (< $25K) / 0.35%

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2A-Lowest All-In FeeVanguard Digital Advisor

Lowest listed all-in fee at 0.20%, using Vanguard's low-cost index ETFs on a pure passive approach.

Vanguard Digital Advisor lists 0.20% all-in, including ETF expenses, with a $100 minimum. It uses Vanguard's low-cost index ETFs and a pure passive approach. It is the simple, low-cost pick if you do not need extras.

Vanguard Digital Advisor

0.20%Reference price

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Fee

0.20%

Minimum

$100

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4B+Best for 529 and ControlWealthfront

Adds 529 college plans and customizable portfolios; the highest minimum here at $500.

Wealthfront lists a 0.25% management fee, 529 college plans, customizable portfolios and tax-loss harvesting, with a $500 minimum. It suits people who want a bit more control or plan to save for education.

Wealthfront

0.25%Reference price

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Fee

0.25%

Minimum

$500

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▶ Video review

Fees are the main difference

All four use automated, index-style portfolios, so the biggest measurable gap is what you pay. Vanguard Digital Advisor lists 0.20% all-in, including ETF expenses. Betterment and Wealthfront list a 0.25% management fee. Fidelity Go charges $0 under $25K and 0.35% above that.

On a $10,000 balance, 0.25% is about $25 a year and 0.20% is about $20, so the gap is small at low balances. It grows with the size of the account, and it compounds over decades. Check whether each fee already includes the underlying fund costs and how a tiered fee is applied to your balance.

Minimums and who each one fits

Minimums differ: Betterment lists $0, Vanguard Digital Advisor $100 and Wealthfront $500. Fidelity Go is built around small portfolios, with no management fee under $25K and Fidelity Flex funds listed at a 0% expense ratio.

Pick by situation rather than by rank. Starting small favors Fidelity Go or Betterment. Wanting a pure passive Vanguard index approach favors Vanguard. Saving for college or wanting more control over the portfolio favors Wealthfront.

Features beyond the portfolio

Betterment lists goal-based investing, tax-loss harvesting and automatic rebalancing. Wealthfront lists tax-loss harvesting (see its official terms for the balance requirement), 529 college plans and customizable portfolios. These extras only matter if you will use them.

Fees, tax rules and eligibility change and depend on your situation. Nothing here is a recommendation to buy or sell any investment, and investing carries risk, including loss of principal. Check each provider's official fee schedule and disclosures, and consider a licensed professional for personal advice.