Hi
I'm looking to buy a tablet since I want to draw on the move. More mobility since I constantly have art commission (not much but enough to feed my family)and I also planning to sell artwork online and working with social media marketing for my artwork, I already have PC and old wacom Graphire (I already tested Wacom intuos but not really like to use it), but the problem is I am not always with my PC so I'm thinking of buying a portable device for my work.

No, I don't plan to buy wacom cintiq or any wacom alternative. What I need is portable device to work on my digital illustration.

Most work done either adobe illustrator (anything with vector illustration) and clip studio paint, sometime Photoshop.

My choice so far is
-Apple iPad Pro
-Samsung Galaxy Tab A
-Microsoft Surface Pro
-any device suggestion?

I would like to ask which is better for the long run?

In case you might want to know about my usage and workflow:
1. I only can use the PC during night since I am busy with house chores during daylight (I am a housewife with 4 children), can't afford to work near them playing around while on the PC.
2. I also have tendency to leave my work unattended so autosave feature is a must.
3. Internet is a must (for google image and email and stuff)
4. keeping the artwork on the device for easy access (but always synch backup with dropbox). A storage accessories might be added to purchase.
5. Sometimes my illustration files have bigger memory use on pc so I need the device to be less heat during work. (to keep longer lifespan of the device, can't afford to buy new everytime right? )
6. Always going out to attend some business.
7. I always taking photo for my future reference. (You can say I like hoarding images of scenery) . Not really care about camera spec but enough to have details about the subject taken.

My budget is not more than 4-5k include some accessories (storage, etc)

Advice is highly appreciated, thank you.

The most important is which software u likely to used, csp got app on ios but its monthly subscribe, other alternative is procreate(ios) and medibang paint(ios and android)
If you want to buy a tablet I suggest survey on apps first then u will know which one u need to buy