Samsung Galaxy S3 is one of the devices speculated to have Android 5.0 Key Lime Pie, together with the Galaxy S4, Galaxy Note 2, Galaxy Note 7.0 and Galaxy Note 10.1. While waiting for the arrival of Android 5.0 in May, let's try maximising your Galaxy S3 using these four impressive custom ROMs redefining UI, applications and tweaks.

The Samsung Galaxy S3 is one of the high-end phones today and having a custom ROM for the device becomes one option for techie users to explore more feature on their phones.

Omega ROM Series for Galaxy S3
Omega ROM has two versions available for the S3, 4.2.1 Jelly Bean Beta and 4.1.2 Jelly Bean. Aside from the firmware features the custom ROM offers, you can also download exclusive Omega mods, themes, and ROM graphics. Visit the Omega XDA thread and choose from their huge library.

Inside Omega ROM v43.1

  • Based on firmware XXEMB5 Android 4.1.2 JB
  • Kernel stock and modem XXEMB5
  • Omegadroid Walk Boot animation
  • Omega wallpapers, Settings, and Files app
  • CWM Manager v3.60
  • Busybox v1.20.2
  • SuperSU
  • Aroma installer
  • Flashing apps and bloat apps anytime without flashing again the whole ROM
  • Full wipe option
  • Automatic Wipe cache partition, Wipe Dalvik cache and Wipe preload partition
  • Google apps from Android 4.2
  • Omega Add-ons
  • Mods, tweaks and stock themes

SuperNexus
It is based entirely on Google's AOSP source and provides the Vanilla Android experience similar to Nexus devices. The SuperNexus has no third-applications which means this custom ROM is very light. Check the SuperNexus original thread.

SuperNexus ROM Details and Features:

  • Android 4.1.2 Jelly Bean JZO54K
  • Latest CM Kernel
  • All AOSP Android Jelly Bean Features and Applications
  • Zero visual changes
  • Fully Deodexed
  • Zip-aligned APKs
  • SuperSU
  • Busybox
  • Zero Bloatware
  • Improved and optimized Android source code
  • Official Galaxy Nexus Android 4.1.1 Boot Animation
  • Improved Scrolling Cache
  • Reduced Boot Time
  • Switching between USB Mass Storage and MTP/PTP
  • Ultra Smooth Browsing with up to 64 maximum tabs

RGUI Battery Friendly
It is an MIUI-based custom ROM and heavily concentrated on maximising the battery life of your Galaxy S3. The ROM is fast, smooth, and helps lessen the charging time of the device's battery. View the download links, changelogs, bugs fixes and flashing instructions on RGUI XDA thread.

XperianZe
This custom ROM will turn your Galaxy S3 into Sony Xperia Z, including the user-interface and applications. To see more of this unique custom ROM, check the XperiaZe Developer's link.

XperiaZe Features:

  • Latest Elegant System
  • Xperia Z Launcher
  • Xperia Z Keyboard with swipe
  • Xperia Status Bar icons
  • 28 Xperia Wallpapers
  • Xperia Lock screen
  • Xperia Z UI, Sounds, Notifications, Alarms & Ringtones
  • Xperia Z Boot Animation
  • 2 Xperia Z Live Wallpapers
  • Xperia Z Apps: Calendar, Calculator, Album, Movies, Walkman, Notes, Torch, TrackID
  • Xperia Z Widgets

Disclaimer: All screenshots, videos, and information mentioned above belong to their respective owners and developers.