We highly appreciate your feedback you’ve given us about this feature. Good news: We’re close to releasing it on Android. You can get a sneak preview here: https://blogs.office.com/2017/06/05/improving-people-in-outlook-for-ios-and-android/
Thanks for your patience as we make the final touches!
All the best
The Outlook Mobile Team
PS: Please use the Help Section of the app for any questions, we are not able to see replies to this address.梅 朝瑞 commented
Sync icons of people pleeeeeeeeeeeease！！！