Blackjack vs. Uno
Comparing 2 standards across 24 specifications. 24 key differences identified.
Blackjack (21) is a casino banking game where players compete against the dealer to achieve a hand value closer to 21 without exceeding it (busting). Standard rules payout natural Blackjacks at 3:2, require dealers to stand on hard 17 (and often soft 17), allow doubling down on initial two-card totals, and offer 2:1 insurance against a dealer Ace.
Uno is a 108-card shedding game governed by official Mattel standards. Official rules strictly prohibit stacking draw cards (+2 on +2 or +4 on +4); affected players must draw and forfeit their turn. Players may legally finish on action cards, and a Wild Draw 4 may only be played when holding no cards of the active color.
Specification Comparison Table
24 Parameters| Parameter / Spec | ||
|---|---|---|
|
Standard Shoe Size
|
6 to 8 decks (52 cards each) | — |
|
Natural Blackjack Payout
|
3:2 (Standard) vs 6:5 (Unfavorable) | — |
|
Card Values (2–10)
|
Face Value (2–10) | — |
|
Face Cards (J, Q, K)
|
10 points each | — |
|
Ace Value
|
1 or 11 (Soft Hand) | — |
|
Dealer Standing Rule
|
Stands on 17 (Soft 17 varies by table) | — |
|
Insurance Payout
|
2:1 against dealer Blackjack | — |
|
Double Down Option
|
Permitted on 2 cards (1 card dealt) | — |
|
Splitting Pairs
|
Permitted up to 3–4 hands | — |
|
Split Aces Restriction
|
1 card dealt per Ace (no re-split) | — |
|
Base House Edge
|
0.4% to 0.6% with Basic Strategy | — |
|
Governing Publisher
|
— | Mattel |
|
Total Deck Size
|
— | 108 cards |
|
Starting Hand Size
|
— | 7 cards |
|
Target Winning Score
|
— | 500 points |
|
Card Stacking (+2 / +4)
|
— | Prohibited (Illegal) |
|
Ending on Action Card
|
— | Permitted (Legal) |
|
Wild Draw 4 Legality
|
— | Legal only if holding no active color |
|
False Challenge Penalty
|
— | 6 cards |
|
Guilty Challenge Penalty
|
— | 4 cards |
|
Uncalled Uno Penalty
|
— | 2 cards |
|
Numbered Cards Value (0–9)
|
— | Face Value (0–9) points |
|
Action Cards Value (Skip/Rev/+2)
|
— | 20 points |
|
Wild Cards Value (Wild/Wild +4)
|
— | 50 points |