It's a bit hard to see, but there's a very subtle moiré pattern on the New 3DS XL's shiny exterior.
The back cover shows off the usual disclaimer/manufacturer imagery, telling you this is the *New* version and not the old one.
You'll have to remove the stylus before disassembling your New 3DS. After pulling it out, we noticed it to be a bit different than the old one.
It's the same weight as the old one—1.8 grams, according to our
dealerprecision scale. Yet, it's a bit stubbier, and feels a little cheaper.