The Samsung GT‑I9100 is the international model of the S2. It was available in the colors black, white and pink. The model used a Exynos 4210 CPU and a Mali‑400 MP4 GPU. GT‑I9100 was launched with 2.3.3 "Gingerbread", with updates to Android 4.1.2 "Jelly Bean", and the model’s exact Android version history is: Gingerbread 2.3.3, 2.3.4, 2.3.5, 2.3.6, Ice Cream Sandwich (ICS) 4.0.3, 4.0.4, Jelly Bean 4.1.1, 4.1.2.

The Samsung GT-I9100G is a model with different hardware than the international, due to a shortage of the Exynos 4210 chip. It was worse than the international GT-I9100. It had the same colors as the GT-I9100. The model used a TI OMAP4430 CPU and a PowerVR SGX540 GPU. It had less custom ROMs. The firmware is NOT cross-flashable with the GT-I9100, and flashing a GT-I9100G firmware on a GT-I9100 or doing the opposite will result in a hard brick.

Identical hardware to the GT-I9100.

Identical hardware to the GT-I9100, but has NFC.

Canadian model usually from Bell, identical hardware to the GT-I9100.

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