Vol. I · Issue 01 · The Quarterly of Plastic

Advertiser Disclosure →

SIDE A

A

Discover · Discover

Discover it Secured Credit Card

VS.

×

SIDE B

B

Capital One · Mastercard

Capital One Platinum Secured Credit Card


FILING

Head-to-Head · Plastic Quarterly

Both cards target people rebuilding credit from scratch, requiring only a 300+ score and charging no annual fee. The Discover it Secured stands out immediately with 1% cash back on all purchases plus 2% in bonus categories (gas and restaurants, capped at $1K per quarter), doubled during year one through Cashback Match. Capital One Platinum offers nothing—no rewards, no bonuses, no incentives beyond basic credit building. If you're securing credit anyway, Discover pays you to do it. Capital One is a credit-building tool only, making it obsolete when a clearly superior alternative exists at the same price point.

THE VERDICT

Our ruling.

Discover it Secured wins decisively. Unless you plan to carry a balance and want the fractionally lower APR (meaningless at these rates), there's no reason to choose Capital One. Discover gives you cash back while building credit, making it the rational choice for anyone in this market segment.

CHOOSE A

Side A is for you if

  • 01You spend regularly on gas and restaurants—the 2% categories, even with their quarterly caps, compound to meaningful returns over a year
  • 02You want to be rewarded immediately for responsible use rather than simply building credit with nothing to show for it
  • 03You spend $500+ monthly on varied purchases—1% on everything outside bonus categories still generates real cash back that Capital One won't match
  • 04Cashback Match appeals to you—doubling all first-year earnings means a $300 annual spend generates $6 in cash back instead of $3

CHOOSE B

Side B is for you if

  • 01You believe earning zero rewards is somehow safer or simpler (it isn't)
  • 02You want the absolute lowest APR regardless of other factors (30.74% vs 28.24% is negligible when neither card should carry a balance)
  • 03You prefer Capital One's specific security deposit structure at $49 minimum (though Discover's deposit terms are industry-standard)

THE LEDGER

Side by side.

ISSUER
Discover
Capital One
NETWORK
Discover
Mastercard
ANNUAL FEE
$0
$0
APR RANGE
28.24% – 28.24%
30.74% – 30.74%
INTRO APR (PURCHASES)
None
None
INTRO APR (BALANCE TRANSFERS)
None
None
REWARDS TYPE
cashback
none
REWARDS RATE
1% cash back on all purchases
No rewards
SIGN-UP BONUS
Cashback Match (all cash back earned matched at end of first year)
None
BONUS VALUE
$50+
MIN. CREDIT SCORE
300+
300+
FOREIGN TRANSACTION FEE
None
Yes (3%)

A HIGHLIGHTS

Discover it Secured Credit Card

  • Earns cash back even as a secured card
  • Cashback Match doubles all cash back in the first year
  • No annual fee
  • Automatic reviews for upgrade to unsecured card
  • Free FICO score and Social Security Number alerts

B HIGHLIGHTS

Capital One Platinum Secured Credit Card

  • Refundable security deposit starting at $49
  • No annual fee
  • Build credit with responsible use
  • Automatic credit line reviews for higher limits
  • Free CreditWise credit score tracking

QUESTIONS · ANSWERS

Frequently filed.

No—both cards report to all three bureaus equally, so higher cash back doesn't accelerate credit building. The advantage is financial, not structural. You're building credit at the same rate either way, but Discover pays you during the process.