If you are looking to get the latest and best Galaxy S7 UI and software features, now you can grab the Thor S7 Style ROM for your Galaxy S4.
Now, this ROM is intended for GT-i9505 models but I was able to get everything working just fine on T-Mobile Galaxy S4 and you should be able to install on Canadian Galaxy S4 also (or any Qualcomm-based S4 with unlocked bootloader).
As for the ROM itself, Thor S7 ROM brings you a lot of goodies from Galaxy S7 including Galaxy S7 launcher with grid sizes, new TouchWiz themes, and the whole Settings UI. You also get Edge Screen features which is ported from a Galaxy S6 along with S6 camera. The camera app works fine in auto but most of the modes don’t work (as they actually require the hardware of S7 camera).
Overall performance is decent (not out of this world) and battery life is excellent. I do feel this ROM is still at its early stages but it is definitely usable as daily driver. I will be on the lookout for more S7 ported ROMs for the Galaxy S4 and have updates but in the meanwhile, check out the Thor S7 ROM and do let me know what you think!
What is a Custom ROM?
A custom ROM is a custom, modified operating system that you can install on your Android device. Basically it's like installing Windows OS on a Macbook. By installing a custom ROM, you can bypass stock factory settings like locked hotspot tether, install new Android versions early, or even convert your phone into another OS.
With a custom ROM, you can really maximize the capabilities of your smartphone by adding custom features that have been developed by open source developers.
How to Install Custom ROMs
First, you will need to root your device, if it is not rooted yet, follow our root tutorial and root your phone.
Once rooted, you should have TWRP installed on your phone. Installation of a custom ROM is easy if you learn the basic of it. If you don't know how to install custom ROMs using TWRP recovery, see our tutorial on How to Install Custom ROM using TWRP!