I literally logged on to tell you people you're god damn idiots who can't think outside the box. Bringing rs to mobile will introduce thousands of new players to the game simply because it's going to be the first REAL mmo on mobile, not these shitty little Korean MMOs that require you to pay 50$ at every turn. I'd also like to point out a whole lot more people have a mobile device than people who have a PC.
If your Android is locking up and is brand new you're probably buying some cheap ass Chinese brand phone. If that's the case it would explain why you think it's a bad idea, it's okay though perhaps someday you'll have a decent income and be able to afford something that isn't a pocket toaster. And most phones now days (that aren't some cheap phone you buy at a Walmart to-go rack) can hold a charge for 5-6 hours even while gaming. I have a moto g5 plus which isn't even a top tier phone and it has an 8core processor, 4gb ram, a decent graphics chip and 64gb of storage and easily holds a charge for 6 hours whiling gaming and it only cost about 260$, so bringing rs to mobile also makes playing rs a lot more affordable for most people and I would imagine jagez will have no problem optimising the game for mobile