
The New 3DS is faster and bigger with improved hardware and a better battery life. While the New 3DS is slightly heavier, the New 3DS XL is actually lighter.

Let's get a better look at that new analog stick, which Nintendo is calling the C-stick:




The battery life for the New Nintendo 3DS is from 3.5 to 6 hours, while the battery life for the New Nintendo 3DS XL is from 3.5 to 7 hours.

Here's how that battery life stacks up against the old 3DS, which has a battery life of 3 to 5 hours.

And how the battery life of the New 3DS XL compares to the old 3DS XL with a battery life of 3.5 to 6.5 hours.

At the top of this story, you can see how the New Nintendo 3DS's measurements compare to the old one. Here, you can see how they compare on both versions of the 3DS XL.
DISCUSSION
What about upgrading its abysmal resolution? My 3DS is not slow, I'm OK with its performance. But when I finish a 3DS game and play something on Vita, the difference in resolution is striking. Even if the production values of 3DS games often allow it to outshine many Vita games in artwork and animation quality, crisp image on PlayStation is usually more pleasant to look at.
Do they save it for the 'real' next generation handheld rather than this mid-gen upgrade?