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Compare 31378 vs 31175 vs 31392

Up to 3 sets side by side: US list price, pieces, price per piece, age, lego.com status and Insiders points. Data from lego.com, checked .

Set numbers

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The set number is the 4 to 7 digit number on the box and on the lego.com product page.

Side by side

3 sets, best value of each row marked

Comparison of LEGO 31378, 31175, 31392
31378 Space Exploration TelescopeRemove31175 Unicorn CastleRemove31392 Music Decor Piano with CatRemove
ThemeCreator 3-in-1Creator 3-in-1Creator 3-in-1
US list price$34.99Lowest$44.99$49.99
Pieces278390485Most
Price per piece12.6¢11.5¢10.3¢Lowest
Age on the box8+8+9+
Status on lego.comRetiring soonWill ship by October 22, 2026Retiring soonAvailable nowAvailable
Retiring soon badge seen sinceOct 10, 2026Oct 10, 2026Not marked
Insiders points227292325
Product pagelego.comlego.comlego.com
Checked