No. Honor Holly 3 do not support OTG.
I have been using Honor Holly 3 since last 10 days and in my opinion, Honor Holly 3 is one of the best true 4G mobile phones from Honor.
Great Customizable UI
Honor Holly 3 comes with EMUI 4.1 version. Which is highly customized and comes with smart assistance which helps you to operate your phone very easily.
Very Impressive Camera
The camera of Honor Holly 3 is quite impressive at the given price. It comes with the 13MP rear camera and 8MP front camera. It has got a unique patented unique image sharpness algorithm which helps to achieve up 2,100 lines resolution in pictures. Selfie camera has even got BSI sensor which is ideal for capturing selfies in low light conditions and instant make up mode is also available in front camera settings.
Honor Holly 3 comes with best speaker set in mobile phones with price less than Rs.10,000. Holly 3 comes with integrated speakers which produce flawless output at high volume with the help of active external aplifier.