American Express vs. Climate First Bank
Comparing American Express and Climate First Bank for high-yield savings: American Express's High Yield Savings Account pays 3.30% APY while Climate First Bank's Super Duper Savings Account pays 4.01% APY.
See how they compare on rate stability, mobile app ratings, and more below.
The Bottom Line
Who pays more interest on $10,000? Climate First Bank pays $71 more than American Express annually ($401 vs $330).
Choose Climate First Bank if getting the best rate matters most, BBB rating matters to you, you value in-person banking, or you're an Android user.
| Metric | American ExpressHigh Yield Savings Account Mar 7, 2026 | Climate First BankSuper Duper Savings Account Mar 7, 2026 |
|---|---|---|
| APY | 3.30% | 4.01% |
Est. Earnings | $5,000+$165 $10,000+$330 $25,000+$825 | $5,000+$200 $10,000+$401 $25,000+$1,002 |
Min Deposit | $0 | $50 |
Snapshot view. Rates subject to change. | ||
| Features | FDIC InsuredNo MinimumsGreat iOS AppZelle® SupportedDaily CompoundingRate Changes Often | FDIC InsuredLow MinimumsGreat iOS AppGreat Android AppIn-Person AccessZelle® SupportedStable Rate |
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.
Comparison Analysis
Comparing American Express vs. Climate First Bank
Executive Summary
Climate First Bank offers a Super Duper Savings Account with a competitive 4.01% APY, making it the superior choice compared to American Express's High Yield Savings Account, which has an APY of 3.30%. The Climate First Bank account stands out for its simplicity, requiring no direct deposit and having no caps on earnings. Additionally, it only requires a minimum deposit of $50, while American Express has no minimum deposit requirement. Both accounts are FDIC insured, but Climate First Bank provides physical branch access, unlike the online-only American Express account.
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?
No distinct advantages found vs Climate First Bank.
Why Climate First Bank?
- ✓Higher potential APY (4.01% vs 3.30%) on all balances
- ✓Physical branch access (3 locations in Florida (St. Petersburg, Mount Dora, Winter Park), and one coming soon in Orlando, FL)
- ✓Higher rated Android app (4.5 vs 3.6)
— Key Feature Differences —
Better Returns at $10,000
Climate First BankClimate First Bank's Super Duper Savings Account earns more on smaller deposits (approx. $401 vs $330/yr).
Better Returns at $25,000
Climate First BankClimate First Bank's Super Duper Savings Account pulls ahead with larger amounts (approx. $1002 vs $825/yr).
Best for Simplicity
Climate First BankClimate First Bank's Super Duper Savings Account offers 4.01% APY with no bundling, direct deposit requirement or caps.
Shared Benefits
Over a 1-year period, Climate First Bank's Super Duper Savings Account pays $71 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.
Non-sponsored link to official site
Non-sponsored link to official site
Top Market Contenders
American Express vs. Climate First Bank Savings Calculator
You earn $71 more with Climate First 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
Savings Breakdown
- Interest Earned+$330.00(3.2%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,330.00
Climate First Bank
Super Duper Savings Account
Savings Breakdown
- Interest Earned+$401.00(3.9%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,401.00
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 Climate First Bank dramatically outperform the typical 0.01% APY at traditional big banks.
| Feature | American Express | Climate First Bank |
|---|---|---|
| APY | 3.30% Verified: 3/7/2026 ↘︎ 0.10%90d Change | 4.01% Verified: 3/7/2026 ↘︎ 0.20%90d Change |
| Product Name | High Yield Savings Account | Super Duper Savings Account |
| Minimum Deposit | $0 | $50 |
| Min. Balance for APY | $0 | $0 |
| Monthly Fee | $0 | $0, if electronic statements selected, otherwise $5 |
| Compound Frequency | Daily | N/A |
| Branch Access | None | Yes |
| Account Type | Online Only | Online & Branches |
| Physical Branches | None | 3 locations in Florida (St. Petersburg, Mount Dora, Winter Park), and one coming soon in Orlando, FL |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | ||
| FDIC Insured | YesVerify FDIC | YesVerify FDIC |
| Zelle® Support | Available Requires Amex Rewards Checking; not available for standalone HYSA. | Available Verified in Climate First Bank Personal app. |
| BBB Rating | F | A+ |
| Next Steps | Visit SiteVerify at American Express Non-sponsored link to official site | Visit SiteVerify at Climate First Bank Non-sponsored link to official site |
📈 Compare Savings Rates Over Time
Historical Performance
| Metric | American Express | Climate First Bank |
|---|---|---|
| High Yield Savings Account | Super Duper Savings Account | |
Current APY | 3.30% | 4.01% |
Trend | Stable | Stable |
Velocity (bps/mo) | -4.1 | -2.8 |
Days Since Change | 67 | 8 |
3-Month High | 3.50% | 4.21% |
3-Month Low | 3.30% | 4.01% |
Adjustments / Mo | 0.59 | 0.29 |
Volatility Score | 0.015 | 0.013 |
How to read these metrics(Click to expand)
Compare Similar High-Yield Accounts
Compare American Express vs...
Comparing against Standard Savings
Compare Climate First Bank vs...
Comparing against Standard Savings
High Rates (With Checking Bundle)
Looking for something different? Check out these top-rated alternatives.
More Comparisons
Compare American Express' APY of 3.30% with other banks
Compare Climate First Bank's APY of 4.01% with other banks
| Bank Pair | Competitor APY | Min Deposit |
|---|---|---|
| Climate First Bank vs Ally Bank | 3.20% | $0 |
| Climate First Bank vs Axos Bank | 4.21% | $0 |
| Climate First Bank vs Bank of America | 0.01% | $100 |
| Climate First Bank vs Barclays | 3.85% | $0 |
| Climate First Bank vs Capital One | 3.30% | $0 |
| Climate First Bank vs Chase Bank | 0.01% | $0 |
| Climate First Bank vs Chime | 3.00% | $0 |
| Climate First Bank vs CIT Bank | 3.75% | $100 |
| Climate First Bank vs Citibank | 3.20% | $0 |
| Climate First Bank vs Discover Bank | 3.30% | $0 |
| Climate First Bank vs EverBank | 3.90% | $0 |
| Climate First Bank vs Marcus by Goldman Sachs | 3.65% | $0 |
| Climate First Bank vs Newtek Bank | 4.20% | $0.01 |
| Climate First Bank vs Openbank | 4.09% | $500 |
| Climate First Bank vs Pibank | 4.60% | $0 |
| Climate First Bank vs SoFi Bank | 4.00% | $0 |
| Climate First Bank vs Synchrony Bank | 3.50% | $0 |
| Climate First Bank vs Varo Bank | 5.00% | $0 |
| Climate First Bank vs Wealthfront | 4.20% | $0 |
| Climate First Bank vs Wells Fargo | 0.05% | $25 |