High-Yield Savings Account Comparison

American Express vs. Vio Bank

Comparing American Express and Vio Bank for high-yield savings: American Express's High Yield Savings Account pays 3.30% APY while Vio Bank's Online Savings Account pays 4.03% APY.

See how they compare on rate stability, mobile app ratings, and more below.

Analysis by Aviel Fahl
Updated February 21, 2026

The Bottom Line

Who pays more interest on $10,000? Vio Bank pays $73 more than American Express annually ($403 vs $330).

Choose American Express if you want Zelle for quick transfers. Choose Vio Bank if getting the best rate matters most, or BBB rating matters to you.

Comparison of American Express vs Vio Bank savings accounts
Metric

American Express

High Yield Savings Account

Feb 21, 2026

Vio Bank

Online Savings Account

Feb 21, 2026
APY3.30%4.03%
Est. Earnings
$5,000+$165
$10,000+$330
$25,000+$825
$5,000+$202
$10,000+$403
$25,000+$1,008
Min Deposit
$0$100

Snapshot view. Rates subject to change.

Features
FDIC InsuredNo MinimumsGreat iOS AppZelle® SupportedDaily CompoundingRate Changes Often
FDIC InsuredLow MinimumsGreat iOS AppDaily CompoundingRate Changes Often

Market Reality Check

Both of these banks offer rates below the current top tier. The best rates we track are currently above 4.15% APY.

See Top Rates

Comparison Analysis

Comparing American Express vs. Vio Bank

Updated: Feb 21, 2026

Executive Summary

Vio Bank offers a competitive Online Savings Account with a higher APY of 4.03%, compared to American Express's High Yield Savings Account, which yields 3.30%. Vio Bank's account stands out for its simplicity, requiring no direct deposit and having no maintenance fees if electronic statements are chosen. Additionally, it has a minimum deposit requirement of $100, while American Express has no minimum deposit or balance requirements. Both accounts are online-only and FDIC insured, making them accessible for those looking to earn interest on savings.

The analysis is based on current Banksparency database records

* This content is provided for informational purposes only; always verify details with the provider.

Why American Express?

  • Fast transfers via Zelle®

Why Vio Bank?

  • Higher potential APY (4.03% vs 3.30%) on all balances

— Key Feature Differences —

Better Returns at $10,000
Vio Bank

Vio Bank's Online Savings Account earns more on smaller deposits (approx. $403 vs $330/yr).

Better Returns at $25,000
Vio Bank

Vio Bank's Online Savings Account pulls ahead with larger amounts (approx. $1008 vs $825/yr).

Best for Simplicity
Vio Bank

Vio Bank's Online Savings Account offers 4.03% APY with no bundling, direct deposit requirement or caps.

Shared Benefits

Available Nationwide Available to New & Existing Customers
The Bottom Line on APY (Interest Only)

Over a 1-year period, Vio Bank's Online Savings Account pays $73 more interest on a $10,000 balance than American Express's High Yield Savings Account.

*This calculation assumes current rates remain consistent for 1 year and does not include temporary bonuses.

American ExpressVio Bank
Verify At
American Express

Non-sponsored link to official site

Verify At
Vio Bank

Non-sponsored link to official site

Top Market Contenders

Synchrony Bank
3.50% APY
Marcus by Goldman Sachs
3.65% APY

American Express vs. Vio Bank Savings Calculator

Calculations based on current APY for High Yield Savings Account and Online Savings Account
$
$

You earn $73 more with Vio Bank than American Express on a $10,000 initial deposit for 1 year*.

*This calculation assumes that APYs remain unchanged for 1 year, and takes into account known promo rate periods, but does not factor in bonuses. You can see how often these banks have changed their rates in the Compare Savings Rates Over Time section below.

American Express

High Yield Savings Account

3.30% APY

Savings Breakdown

  • Interest Earned
    +$330.00(3.2%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,330.00

Effective APY
3.30%

Vio Bank

Online Savings Account

4.03% APY

Savings Breakdown

  • Interest Earned
    +$403.00(3.9%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,403.00

Effective APY
4.03%

The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.

Still banking with Chase, Bank of America, or Wells Fargo?

On a $10,000 balance, you're missing out on at least $329 per year in interest.

Both American Express and Vio Bank dramatically outperform the typical 0.01% APY at traditional big banks.

Big banks currently pay 0.01% APY on savings vs 3.30%+ here
FeatureAmerican ExpressVio Bank
APY
3.30%
Verified: 2/21/2026
↘︎ 0.20%90d Change
4.03%
Verified: 2/21/2026
↘︎ 0.13%90d Change
Product NameHigh Yield Savings AccountOnline Savings Account
Minimum Deposit$0$100
Min. Balance for APY$0$0
Monthly Fee$0$0, if electronic statements selected, otherwise $5
Compound FrequencyDailyDaily
Branch AccessNoneNone
Account Type
Online Only
Online Only
Physical BranchesNoneNone
Direct Deposit Req.NoneNone
Checking BundleNoNo
Mobile Apps
iOS4.9
Android3.6
iOS4.6
Android3.4
FDIC Insured
Zelle® Support
Available
Requires Amex Rewards Checking; not available for standalone HYSA.
Not Supported
BBB RatingFA+
Next Steps
Visit Site

Non-sponsored link to official site

Visit Site

Non-sponsored link to official site

📈 Compare Savings Rates Over Time

Historical Performance

Last 3 Months Analysis
MetricAmerican ExpressVio Bank
High Yield Savings AccountOnline Savings Account
Current APY
3.30%4.03%
Trend
Stable Stable
Velocity (bps/mo)
-6.4-6.2
Days Since Change
538
3-Month High
3.50%4.21%
3-Month Low
3.30%4.02%
Adjustments / Mo
0.601.20
Volatility Score
0.0210.016
How to read these metrics(Click to expand)

Trends & Velocity

  • Trend: The general direction of the rate over the analyzed period. Useful for spotting if a bank is currently aggressive or pulling back.
  • Velocity (bps/mo): Speed of change. A high positive number means they raise rates quickly. 10 bps = 0.10%.
  • Adjustments/Mo: "Twitchiness." High frequency means the rate changes constantly; low frequency means it's stable.

Risk & Range

  • High/Low: The absolute ceiling and floor of the rate during the 100-day window.
  • Volatility Score: Lower is better for predictability. It indicates how wildly the rate swings relative to its average.
  • Days Since Change: If this number is high (e.g., >90), the rate is very sticky. If low, it changed recently.

More Comparisons

Compare American Express' APY of 3.30% with other banks
Bank PairCompetitor APYMin Deposit
American Express vs Affirm3.20%$0
American Express vs Ally Bank3.20%$0
American Express vs Axos Bank4.21%$0
American Express vs Bank of America0.01%$100
American Express vs Barclays3.85%$0
American Express vs Bask Bank0.25%$0
American Express vs Betterment3.90%$10
American Express vs BMO Alto3.15%$0
American Express vs Bread Savings4.00%$100
American Express vs BrioDirect3.75%$5,000
American Express vs Capital One3.30%$0
American Express vs Carver Bank4.00%$5,000
American Express vs Charles Schwab Bank0.15%$0
American Express vs Chase Bank0.01%$0
American Express vs Chime3.00%$0
American Express vs CIT Bank3.75%$100
American Express vs Citibank3.20%$0
American Express vs Citizens Access™3.15%$0.01
American Express vs Climate First Bank4.21%$50
American Express vs Colorado Federal Savings Bank4.05%$50,000
American Express vs Discover Bank3.30%$0
American Express vs E*TRADE from Morgan Stanley3.35%$0
American Express vs Elevault3.82%$0
American Express vs EverBank3.90%$0
American Express vs Fitness Bank4.50%$100
American Express vs FNBO Direct3.00%$1
American Express vs Forbright Bank3.85%$0
American Express vs FVCbank4.00%$500
American Express vs GO2bank4.50%$0
American Express vs Ivy Bank3.85%$2,500
American Express vs Jenius Bank4.05%$0
American Express vs LendingClub4.00%$0
American Express vs Marcus by Goldman Sachs3.65%$0
American Express vs MutualOne Bank4.07%$20,000
American Express vs My Banking Direct4.02%$500
American Express vs Neighbors Bank4.20%$0
American Express vs Newtek Bank4.20%$0.01
American Express vs Openbank4.09%$500
American Express vs Peak Bank4.02%$100
American Express vs Pibank4.60%$0
American Express vs PNC3.30%$0
American Express vs Popular Direct3.90%$100
American Express vs Presidential Bank3.75%$5,000
American Express vs Quontic Bank3.50%$100
American Express vs Salem Five Direct3.61%$10
American Express vs Sallie Mae Bank3.85%$0
American Express vs Santander Bank0.01%$25
American Express vs SoFi Bank4.00%$0
American Express vs Synchrony Bank3.50%$0
American Express vs TD Bank2.36%$0
American Express vs TIMBR4.15%$1,000
American Express vs UFB Direct3.46%$5000
American Express vs Upgrade3.05%$0
American Express vs Valley Direct4.00%$1,000
American Express vs Varo Bank5.00%$0
American Express vs Wealthfront3.95%$0
American Express vs Wells Fargo0.05%$25
American Express vs Zynlo Bank3.85%$10
Compare Vio Bank's APY of 4.03% with other banks