How To Take A Screenshot With The Motorola Motoluxe
Unfortunately, the Motorola Motoluxe cannot natively take screenshots 
However, users can root the device to take screenshots. There are many guides out there to achieve this, but be careful!
How To Take A Screenshot or Screen Capture With The Microsoft Lumia 950 To take a screenshot or screen capture with the Microsoft Lumia 950 Press and hold the VOLUME UP and the POWER buttons on the right side of the phone at the same time The screenshot will be saved in albums/screenshots...
How To Take A Screenshot With Sony Ericsson Xperia U To take a screenshot or screen capture with the Sony Ericsson Xperia Z, simply: Hold down the VOLUME DOWN button and the POWER button If the phone has not been upgraded to the ICS (Ice Cream Sandwich) OS, hold down the POWER button and on the option screen is a TAKE SCREENSHOT option....
How To Take A Screenshot or Screen Capture With The Microsoft Lumia 950 XL To take a screenshot or screen capture with the Microsoft Lumia 950 XL Press and hold the VOLUME UP and the POWER buttons on the right side of the phone at the same time The screenshot will be saved in albums/screenshots...
How To Take A Screenshot or Screen Capture With The Dell Streak Unfortunately you can’t take screenshots with the Dell Streak....