Hi Grace, yes, some design differences that aren’t immediately obvious but do improve performance. The folding pot supports on the PocketRocket 2 accommodate a slightly wider pot than the older model, while also folding up a little more compactly. MSR says the new model is also lighter, but that’s in fractions of an ounce. If you’re deciding between a greatly discounted price on the older model versus the new one at full price, and trying to save money, the old one may be all you need.

Good question, Erika, and one I think about often because (when I’m not testing a specific stove), I’m choosing between a Jetboil system or something like the Pocketrocket 2 and an MSR Big Titan Kettle (which I review in this story: https://thebigoutsideblog.com/gear-review-12-essential-backpacking-accessories/).

Of course, the personal (smaller) Jetboil stoves hold a liter of water, so it’s slower cooking for two; you have to jump up to Jetboil’s Sumo or Joule for capacity for two or three people, and then you’re getting into greater expense than a Pocketrocket 2 and a Big Titan Kettle. Plus, the Jetboil boils water great, but the Pocketrocket 2 has the edge at simmering. Lastly, I think it’s a bit of personal preference and what and how you tend to cook in the backcountry.

I hope that’s helpful. Feel free to send questions.