Others here will offer all kinds of detailed suggestions on gear and how incredible EAA is as way to actually see things like the old days of dark skies...really, it’s totally true. I cannot imagine you not being thrilled to discover what it offers.
I’ll keep my advice simple and to the main points- at least as I see them after just over 1 year of EAA now.
1. EAA is all about observing- not imaging. Given what you mentioned in your post, you’re an observer not a photographer so EAA is the right direction for you. Even so, the images you’ll see on the screen will amaze you as you study the object. You may want to capture an image or two as an observation record.
2. I feel that I wasted my first 6 months struggling with the Revolution Imager-although others have done fine with it. I urge you to step past the RI2 and instead get a decent cmos camera right away. There are decent options in the 200-300 range but bear in mind that if you go too low in cost/quality, you risk missing the amazing potential for being blown away by the things you can see. You need decent gear.
3. See what others who have tried tablets have to say about them. From what I’ve read here, some are workable but those are not much less expensive than a decent i5 laptop which is far, far better for managing the software (Sharpcap 3.3 Pro mainly) and the data flow associated with large 6-12 megapixel images being stacked every 4-12 seconds. You’ll want (need?) usb 3 for most modern cameras by the way. But you should start by investing in the most important thing, a decent camera, and put up with your current laptop until you get your feet wet and know a bit about what you’re doing, how EAA works and what’s really important.
4. I can’t tell from your signature what you have for a mount but you’ll need only a decent goto AZ mount- no need to invest the cash and time in an EQ Mount. Sharpcap’s stacking will align the stars and stack them for you - bypassing minor tracking errors and field rotation higher up.
Lastly, if you haven’t already discovered them, there are tons of topic posts in CN with an incredible amount of good guidance on getting started in EAA. Find them and read as many of them as you can to get a clear picture of where you’re heading. Post specific questions here on anything you’re not clear on and folks with bend over backwards to help you.
enjoy the journey!