From the update, the listed some high end smartphone that will first enjoy the new android operating systemand. Here the list of Motorola phones that will be updated to Android 8.0
• Moto Z2 Force (AT&T, Sprint, T-Mobile, Verizon)
• Moto Z2 Play (Verizon, unlocked)
• Moto Z Force DROID (Verizon)
• Moto Z (AT&T, T-Mobile, Verizon, unlocked)
• Moto Z Play (Verizon, unlocked)
• Moto G5S Plus (unlocked)
• Moto G5 Plus (unlocked)
• Moto G5 (unlocked)
Since this was shared by Motorola USA, it’s obviously focused solely on handsets that have been sold officially in that country. There’s no information yet about what will happen elsewhere.
Note that most of the carrier phones in the list are said to get Oreo “pending partner support” – so there’s a chance that some of them will never see an update despite Motorola’s intentions (if one of the carriers says no).
The absence of any version of the G4 family is notable here, since that’s less than 18 months old at this point. Perhaps the end of software support this early is to be expected for a mid-range series, but owners of any G4 who care about being up to date may look to other companies for their next Android fix.