It's the only missing feature from the Lumia 920 days, seems odd that a flagship is missing such a convenient feature. Other WP10 phones have the feature why not the 950?
We don't know if double tap to wake requires a special hardware technology but my guess is yes, or Microsoft would have implemented it already.
What's really weird, is you can double tap the navigation bar to turn off the screen. So the double tap function is there, it just can't wake the screen for some reason..
"Glance" has more to do with the screen technology since LCD wastes more energy: when you want to lit a few pixels, you need to lit the whole screen contrary to OLED where you can lit only the pixels you want, hence save energy. But Glance can still be present on LCD screens. Glance also requires some other hardware piece as well which was missing on Lumia 930 and that's why it wasn't present on Lumia 930 although it had OLED.
The 950 does have GlanceRight. Lumia 1020 is OLED and has Glance. Lumia 640 XL is LCD id has Glance. It needs additional hardware to provide display memory to run it on, so it doesn't eat up your battery.
I am surprised. The 950 doesn't have Glance?
I'd bet money that both double-tap to wake and super-sensitive touch are missing due to a hardware requirement not met by the 950s.
How is double tap wake up different from double tap lock screen? Both of them are "double tap".
I don't see how Glance can be working on the 950 but double tap to wake can't.
At this point I don't care what the reason is I want them to let me know if it is happening or not.