Design and Looks:
Galaxy R looks has very much the same looks as the Galaxy S2 however there is a little difference in design with Galaxy R being a millimeter thicker than S2 with thickness of 9.5mm in contrast to 8.5mm of Galaxy S. Galaxy R is also quiet heavier weighing 135g in comparison to 116g of Galaxy S2.
Galaxy S2 features Super AMOLED TFT capacitive touch screen with resolution of 480 x 800 pixels and 16M color support. The baby version comes with SC LCD capacitive touchscreen having the same resolution and color support. Good thing is that Galaxy R retains the same 4.2 inch screen as Galaxy S2 however the display of Galaxy S2 is gorilla glass display. Features like Touch wiz UI, proximity sensor, accelerometer sensor, Gyroscope and Multitouch input method are common in both the phones.
Galaxy S2 features 8MP autofocus camera with LED flash that is able to record HD 1080p video at 30fps, there is also a 2MP secondary camera for video calling. Galaxy R has 5MP camera with autofocus and LED flash, it is able to record HD 720p video. Galaxy R also lack image stabilization, touch focus and face and smile detection features but has a secondary video call camera.
Processor and OS:
The processor in Galaxy R sees a little downgrading having Tegra 2 Dual-core 1GHz ARM Cortex-A9 processor powered by ULP Geforce GPU in contrast to Exynos Dual-core 1.2GHz ARM Cortex-A9 proccessor powered by Mali-400MP GPU. Both the smart phones have the same version of Android OS that is the latest Android 2.3(Gingerbread).
Keeping in view the success that’s Galaxy S2 is having it won’t be a surprise at all to see Galaxy R getting a decent enough market share for itself and may even surpass Galaxy S2.