This is the most popular method for mobile gamers. You can play Tekken 6 (which is an incredible game in the series) on your Android phone using the PPSSPP Emulator.
Download VMOS (Virtual Android) from the Play Store. Run the unknown APK inside the virtual machine first. If the VM crashes or starts sending texts, delete it immediately.
If you want to play Tekken on mobile:
No. Not unless you see a press release from Bandai Namco or a listing on the official Google Play Store.
The search term "Download Tekken 9 For Android WORK" is currently a honeypot for hackers. While the desire is real, the file is not. The "working" versions circulating today are either: Download Tekken 9 For Android WORK
The safe alternative: Join the official Tekken subreddit. Wait for the announcement. In the meantime, download Tekken 6 (PSP emulator via PPSSPP). It runs flawlessly on Android, has 40+ characters, and is 99% of the Tekken 9 experience for zero risk.
Actually, no. Play Shadow Fight 4: Arena. It uses realistic ragdoll physics similar to Tekken. It is free, has Jin-like characters, and runs on potatoes. This is the most popular method for mobile gamers
If you have a high-speed internet connection and a subscription to services like GeForce Now or Xbox Cloud Gaming, you can stream the actual console/PC version of Tekken 7 (and soon potentially Tekken 8) to your phone.
If you're interested in playing Tekken on your Android device: The safe alternative: Join the official Tekken subreddit