They all have different extra content. Not sure about platinum. Do you mean premium ?
Source: http://simsvip.com/
The Sims 4 Limited Edition:
- Life of the Party Digital Content: Gather ‘round the Flaming Tiki Bar in spectacular party costumes.
The Sims 4 Digital Deluxe Edition
- Life of the Party Digital Content: Gather ‘round the Flaming Tiki Bar in spectacular party costumes.
- Up All Night Digital Content: Party till dawn with a laser light show, hot new parties, outfits, decorations and recipes.
- Digital Soundtrack: Groove to the music of the game.
- Origin Exclusive Digital Content: no info yet
The Sims 4 Premium Edition
- Life of the Party Digital Content: Gather ‘round the Flaming Tiki Bar in spectacular party costumes.
- Up All Night Digital Content: Party till dawn with a laser light show, hot new parties, outfits, decorations and recipes.
- Creator’s Guide Hardcover Book: A hardcover guide that teaches you to become a Sims master creator, and also includes art from The Sims 4.
The Sims 4 Collector’s Edition (not available for preorder in the US atm but in other countries)
- Life of the Party Digital Content: Gather ‘round the Flaming Tiki Bar in spectacular party costumes.
- Up All Night Digital Content: Party till dawn with a laser light show, hot new parties, outfits, decorations and recipes.
- Creator’s Guide Hardcover Book: A hardcover guide that teaches you to become a Sims master creator, and also includes art from The Sims 4.
- Digital Soundtrack: Groove to the music of the game.
- Plumbob USB by Steel Series
