If this has 1GB of RAM, it's going to be bricked like iPhone 3G, iPhone 4 with 3GS specs and 4x pixels can't run iOS7, like iPhone 4S can't handle iOS8, like iPad 1's 256MB of RAM, like iPad 3 with 4x pixels on iPad 2 specs. iPhone 5 will run iOS11 fine with 1GB and iPhone 6 Plus will lag with less available memory.