Fire-Boltt INVINCIBLE 1.39" (3.53cm) AMOLED 454x454 Bluetooth Calling Smartwatch Color:Black a quick 15 minutes of

a quick 15 minutes of charging provides you another 4 Hours of playtime

exercise time

2 ISO Auto

OS ‎Android RAM ‎4 GB Product Dimensions ‎24

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Fire-Boltt INVINCIBLE 1.39" (3.53cm) AMOLED 454x454 Bluetooth Calling Smartwatch Color:Black a quick 15 minutes ofFeatures 1. 39 AMOLED DISPLAY : Fire Boltt Invincible has a premium 454*454 Pixel Resolution with 2. 5D Full Lamination. It has an ALWAYS ON Display; How to activate Bluetooth Calling : To enable Bluetooth Calling Function, first connect it to the compatible app. Once connected, manually go to the phone's Bluetooth settings and pair (Bluetooth Name: BSW020). On pairing, you will get a notification: Connected for calls.. Band Width: 20 millimeters.