Lenovo has rolled out Marshmallow updates to the K3 Note, A7000, and the Vibe P1 last month, and the vendor is now turning its attention to the Vibe S1. The phone made its debut in the country in November, offering dual front-facing cameras — an 8MP shooter and a 2MP secondary camera that adds depth of field.

If you're rocking the Vibe S1, be sure to head into your phone's settings to check if the OTA update is available. At this rate, it shouldn't be long before the Vibe K4 Note also picks up the Marshmallow update.