Most people buy phones directly from their carrier, but if you’re reading this guide, I suggest you buy an unlocked smartphone. When you buy a carrier phone, it’s “locked” to that network. That means if you want to switch carriers, like move from Verizon to T-Mobile, you’ll have to ask your carrier to unlock the device, and this can be a huge headache. (Especially if you’re traveling and want to use an international SIM card.) Asking a carrier to unlock a phone usually has a few requirements, like making sure your device is paid off, or waiting for a set period of time. Unlocked phones, on the other hand, don’t have this problem. You’re free to use whatever carrier you want, whenever.

Carriers also mask the true cost of a smartphone. AT&T may entice you with a $36 per month payment for a shiny new Samsung flagship, when in reality, that means you’re paying $1,300 on a smartphone over 36 months. Did you really want to spend that much? Or will a cheaper phone suffice? Also, you’re more likely to get software updates faster as they come directly from Samsung, and there’s often far less preinstalled bloatware to deal with.

All to say, buy unlocked! You can buy unlocked Galaxy phones directly from Samsung and most third-party retailers like Amazon, Best Buy, and Walmart.