Information about sim cards, network signal, neighboring cells. For the dual sim phones Android API provided methods only for 7.0 and above (5.1/6.0 partialy). For some dual sim phones can getting only information about 2 sim and signal strenght for active sim. (Tested on qualcomm 5.1) For some devices can get information about 2 sim and signal stenght for 2 sim. (Tested on mtk 4.4) Signal Strenght: 1) API - use standard android API 2) SYS API - use vendor API. On some devices different calculation of signal strenght. The SYS API method is more accurate for most devices. - Calculation LTE band for the current and neighboring cells (Android 7.0+) - Available dark theme. Can enable it in the settings. Menu has option 'Debug', it print methods provided by vendor in log. For users Device Info HW+ - In menu available copy info action Permissions : - READ_PHONE_STATE is required for get phone info, IMEI. - ACCESS_COARSE_LOCATION is required for getting neighbor cells.