[S_Prashanth]

I am using Microsoft Lumia 640 XL. I want to know how much battery power would my phone consume if I switch on the Glance screen to (1) peek , (2) interval and (3) always on options.

[Harrie-S]

Nobody knows for sure so you have to find it out by yourself by testing it.
And if you done it please report back to share your findings.

[MrWhiteman]

You can barely tell the difference

[RumoredNow]

I find the impact on battery negligible.

The power and ease of Glance is addictive. It is well worth the small amount of drain. I honestly wonder why some are so afraid of Glance gobbling their battery. That's a boogey-man story. I've used it in several phones and no one will convince me to stop.

[raycpl]

I agree... its negligible. Running FB or IE or WhatsApp etc consume loads. I used to monitor my usage, install battery apps etc... after awhile, I realised why bother!!!. If battery level drops then its time to recharge.