Side By Side Comparison of Karbonn K334 Star and Blu Tank 2. Compare Processor, display, RAM, Storage and other features here. You can quickly compare Karbonn K334 Star and Blu Tank 2 smartphones just by looking at their ratings and results showing "winner" and "runner up." There is also a short analysis comparing different features of Karbonn K334 Star and . You can also look at each hardware feature individually to perform your analysis while comparing mobile phones.