United℠ Explorer vs Citi Double Cash®
Side-by-side comparison
| United℠ Explorer | Citi Double Cash® | |
|---|---|---|
| Annual fee | $150 | No annual fee |
| Welcome offer | Up to 60,000 bonus miles | $200 cash back |
| Dining | 2x | 2x |
| Groceries | 1x | 2x |
| Gas | 1x | 2x |
| Travel | 1x | 2x |
| Streaming | 1x | 2x |
| Everything else | 1x | 2x |
| Est. yearly rewards* | $322 | $583 |
| Points type | Locked to United MileagePlus | Pools with Citi → transferable |
| Network | Visa | Mastercard |
*Estimated yearly rewards on typical household spending, every point valued at a flat 1 cent. Verified June 2026. See your own numbers in the calculator.
The verdict
On a typical year of household spending, the United℠ Explorer earns about $322 a year in rewards and the Citi Double Cash® about $583, valuing every point at a flat 1 cent. The United℠ Explorer charges $150, which you clear through its rewards and perks. The Citi Double Cash® has no annual fee, so its rewards are all profit. Counting rewards, fees, and any credits, the Citi Double Cash® delivers more total value, about $412 a year more for a typical spender, mostly because it earns more where you spend most, on everything else and groceries. The bigger difference is the ceiling: the Citi Double Cash® earns points you can move to travel partners for outsized value, while the United℠ Explorer stays locked to a single airline or hotel program. Favor the Citi Double Cash® if you will use travel transfers, the United℠ Explorer if you want simplicity. On the sign-up bonus, the United℠ Explorer currently has the larger welcome offer. A welcome bonus is a one-time event, so weigh it apart from the ongoing rewards.
Pick the Citi Double Cash® if your spending leans toward groceries, gas, travel.