Released in early 2011, the Samsung Galaxy Gio (GT-S5660) is a lower-end GSM Android smartphone.

It shipped with Android 2.2 and subsequently received an official update to Android 2.3 (via Kies). Other specifications include:
- 3.2", 320 x 480 capacitive touchscreen
- GSM: 850 / 900 / 1800 / 1900 bands
- HSPA: 900 / 2100 bands
- An 800 MHz Qualcomm QCT MSM7227-1 Turbo, with an Adreno 200 GPU