Q. Does it have a waterproof TFT display and which should I go for Kawasaki Z900, Triumph Street Triple or Ducati XDiavel but it should look like sporty bike like Triumph Street triple?

If you want a sportive bike choose between z900 and street triple... because Diavel looks bit like a cruise bikeAnd again if you come to choose between z900 and triumph then I suggest you choose between brands not bikes because both the bikes are best with no issues but when it comes to maintainence triumph donot usually have spare parts available at the service center.......... As my personal experience you have to wait for over 2-3 months for any kind of part as the spares come from U.K It took about 4 months for me to just get the triumph logos where as kawasaki has got better service than triumph

These bikes are different segment z900cc is best but maintenance is high and triumph also but ducati too cost bike, maintenance it's cruise segment. My opinion go ahead z900 bcoz its Japanese bikes.