RE: WALKERA 37
IMHO, the biggest difference between the 37 and and the 36 is the type of head. The 37 is considered a CCPM head. Of course the 37 is a bit bigger as well. Both have belt drive. The transmitter on the 37 offers the user more options than the 36 as well.
The 36 has more aftermarket parts going for it. Hopefully the 37 will get there too, but right now it is too new.