Inquiry Submission By Vannavy

I have a Huawei mobile wifi 4G and I was wondering if it is easy to get a pay as you go SIM card mobile data only for such a device in Phnom Penh so that I can have mobile wifi for all our devices when we need?

I will also get a SIM card for one of our phone to call hotels and Google maps, etc.

Thank you to anyone who could kindly give me some information.