What is a link to download Fortnite for Android?

It's very easy but you can only play on below devices 

Devices:Samsung Galaxy: S7 / S7 Edge, S8 / S8+, S9 / S9+, Note 8, Note 9, Tab S3, Tab S4 

Google: Pixel / Pixel XL, Pixel 2 / Pixel 2 XL, 

Asus: ROG Phone, Zenfone 4 Pro, 5Z, V 

Essential: PH-1 Huawei: Honor 10, Honor Play, Mate 10 / Pro, Mate RS, Nova 3, P20 / Pro, V10 

LG: G5, G6, G7 ThinQ, V20, V30 / V30+ Nokia: 8 

OnePlus: 5 / 5T, 6 Razer: Phone Xiaomi: Blackshark, Mi 5 / 5S / 5S Plus, 6 / 6 Plus, Mi 8 / 8 Explorer / 8SE, Mi Mix, Mi Mix 2, Mi Mix 2S, 

Mi Note 2 ZTE: Axon 7 / 7s, Axon M, Nubia / Z17 / Z17s, Nubia Z11

By a process you can get download link you submit your email address to official website of epicgames and they send download link to your email address.

Official site link:https://www.epicgames.com/fortnite/en-US/mobile/android/sign-up