why double tap wake for lumia 550

[Windows Central Question]

why double tap wake up not add to lumia 550 still ?

 

[libra89]

why double tap wake up not add to lumia 550 still ?

That's on Microsoft. We can't guess why they decided to go with that decision.

 

[Soumyajyoti Biswas]

why double tap wake up not add to lumia 550 still ?

It's annoying,Also 540 has this feature,maybe in 550 required hardware is missing

 

[Starboy21]

I hav a 540 n it has double tap to wake i think they must hav decided not to put it in 550 coz double tap to wake uses battery in the background all day to sense whether u r tapping or not n also this may affect the phone's performance n win 10 already uses most of the battery... Might be a reason...