I'm a Nigerian and from my everyday experience, most of the folks here use Android smartphones. That's not to say that there aren't iPhone users but their Android counterparts outnumber them 10-to-almost nothing.
And why's that?
Very few people know the incentric value of an iPhone, not in build quality this time, but in the services rendered. Most folks I see using an iPhone don't even use Apple Music, they hardly work with App Store, and they don't even know Siri!

(Like who uses an iPhone and will not know Siri

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But on the Android side of things (even though not all Google Play Services are enabled in this region), everybody is very familiar with Google Play Store, everyone uses Google Suite of apps and even are beginning to become too accustomed to Google Assistant.
My point is this; here, iOS is basically a show of fancy, an advertisement of class, for majority of its users. The real "useable" functionality lies with Android. This is not to say there aren't iOS faithfuls, but putting them side-by-side with their Google-pledged rivals, the numbers speak for themselves.
Personally, I'm an Android fanboy (stock Android, to be precise) and even though I respect (and secretly envy the Apple ecosystem), I really don't see myself making the switch anytime soon (especially as Apple Music is available for Android users). What more would make me switch?

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PS: You guys at Android Central are really inspiring. Been following since 2016. Kudos to y'all