Hello guys! I'm about to get myself a new iPhone, I'm still on my oldie iPhone 
5 and now I'm considering between the Xs and the XR. I know the specs of both 
phones and as a blind person I of course prefer a better battery life of the XR 
against the better display type of the XS, But here's my question: does anyone 
of you use the iPhone XS or XS Max and what do you can tell about battery usage 
if you're using screen curtain? On the iPhone XR, same as on all the other 
iPhones prior to the X version from last year, if the screen curtain is active, 
the screen is not showing any content but it's still glowing dark grey as the 
backlight behind the display stays on, only the colour on the screen turns to 
black instead of the actual icons, pictures, websites etc. On the X series the 
black colour on the display means that the pixels on those black spots are 
actually turned of and hence not glowing at all and, logically to me, not 
consuming the energy. Following this way of thinking, with the screen curtain 
turned on on an X, XS or XS Max iPhone, the display should be totally dark and 
hence the battery should last much longer in this mode than on any other older 
iPhones. Does any of you have any experience with this, anyone can confirm the 
longe/better battery performance and longer standby time on the X, XS and XS 
Max with the screen curtain turned on? I understand that with normal use of the 
display, the XR shows better battery performance thanks to the capacity of its 
battery. But for blind people using the screen curtain the things are probably 
other way like? This would interest me a lot and help me immensely in taking my 
decision which phone to buy! Kind regards and all the best for the upcoming 
year 2019! Barbara 

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