After much searching for drones I can play outside under reasonable wind condition while maintaining altitude, I have decided to either buy a GPS drone or an Optical Flow drone. Against my otherwise better judgement, I let the temptation get the better of me. I bought both : SJRC Z5, a gps drone. ATOYX AT-146, an optical flow positioning drone. Results playing outdoor with wind speed <10 mph...……….. Needless to say, the Z5 can easily handle wind and altitude. It has gps. Surprisingly, the AT-146 performs marvelously. It "sticks" in the air regardless. I could go make a pot of coffee, came back, and it would still be where I left it. Better still, I can play this one indoor. Unlike the Z5, this one is a mini drone. Perfect for my small apartment. Now, ON Your Mark > Get Set > Drone.