We at GizBot have come up with several tricky ways to use create a WhatsApp without a valid SIM on your Android phone, or how to spy on someone just by chatting on WhatsApp. Here's another trick that ...

While most people manage quite well with a single SIM card, if you want better demarcation between your work and home life, or you want to make roaming with multiple SIM cards easier, then having the ...

While most people seem to manage just fine with a single SIM card in their smartphone, some -- especially travelers, who can save money by fitting a local SIM card into their handset -- love the ...

While most tablets sold today use Wi-Fi as the default connectivity mode, there are a handful that also offer cellular connectivity. However, the options for such tablets are only increasing with each ...