notifications on my watch but not phone when in lock screen
I just received a replacement iphone 6 and I'm having trouble with the notifications. when my phone is in lock screen and connected to my apple watch I receive the notification on my watch but my phone doesn't light up nor do I receive any notification on my phone for text messages. I've checked the notifications settings for messages and it's on for lock screen and I've checked the notifications for my watch and it's set to mirror my iphone. help? i received it on both devices with my previous iphone.
iPhone 6, iOS 10.3