I believe much people have bought this device because the last 2time i checked the phone was out of stock. This rooting guide is for those that have gotten theirs and have been looking for a way to root it.
I will never proccede with this post without acknowledging Team Hovatek for his wonderful work for porting TWRP recovery to X600

Read this: How To Root Tecno Camon C8
Tools Needed
 1. PC window 7/8
2. Sp flash tools
3. Twrp recovery mode

•  Download UpdateSu.zip you can copy that to the root of your memory card.
• Download TWRP recovery for X600 by Hovatek Here
• Flash the TWRP through sp flash tools use this guide here
• Once the flashing is done,boot to recovery mode my holding the power button and the vol+ simultaneously.
• Now click install zip from SD card then navigate to the root of sdcard where you saved UpdateSu.zip
• Click on it wait till the process finish loading then reboot your phone.
• Congratulations, you just rooted your infinix X600 you will see SuperSU app installed on your phone.
• To be sure, download root checker from playstore