If it is, you should also activate 'Send as SMS.' Note that you may need to perform a one-time sign-in using your Apple ID.) (Tap Settings, Messages, then check to see if the feature is switched on. iMessage isn't activated on your device.However, you may end up seeing green even if you're corresponding with another iPhone.
With the arrival of iOS 10, Apple added even more iMessage goodies, like apps, stickers and bubble effects. Indeed, iMessage allows you to do things standard SMS can't, like share your location, send walkie-talkie-style voice messages, check message delivery and even see if someone's in the process of writing you back (indicated by those three little dots that appear below your last message). That affords two benefits: freedom from carrier rates for SMS (if you're paying extra for it or have a capped plan) and a wider set of messaging features. In the interim, Apple unveiled iMessage, which looks and acts like standard SMS but actually relies on data networks (cellular or Wi-Fi, whatever you're connected to). Then they bundled a fixed number of messages into your calling plan, and now most of them offer unlimited messaging. Back in the bad old days, carriers charged by the message (often 10 to 25 cents per!). A standard SMS text message is delivered over the same voice networks used for phone calls. Let's start by making sure you have all the necessary information.
