Remitano is built to be simpler and faster. Localbitcoins has plenty of customization and automated settings, which makes it more complex. Remitano therefore has more newbies and Localbitcoin has more serious traders.

Also, localbitcoins have more payment options such as COD. Whereas Remitano is fully online payment.
Advantage of Remitano is that it supports MYR>ETH and MYR>USD Tether too

You can technically set any price you want to sell your 0.7btc. If you are selling 0.7 based on RM45,389.21 then yes you'll get 31.7k