The Diatone 2019 GT R249+ is one of the newest series of micro quadctopers from Diatone that is built around the Mamba mini f4 stack.
The full range from smallest to largest includes:
As you can see there is a high degree of modularity - for all except the largest they share the same 1105 5500kV motors. All sizes feature a 3mm thich carbon baseplate except for the R239 which uses and injection moulded plastic chassis and prop-gaurds. All models share the same injection moulded lightweight canopy and mamba mini f4 stack.
I've chosen to review the R249+ since my experience with micro quadcopters has lead me to believe that this is the 'sweet' spot in terms of performance and staying small and discrete when flying.
The Leader 2.5 is a recent release from FullspeedRC and as well as being available on their own website, is also available from Banggood and Gearbest. If you do decide to purchase, Fullspeed over many more customisations and offer free shipping till Jan 2019. The Leader 2.5 follows the recent Leader 3 but is limited to 2.5 inch rather than 3 inch propellers. My objective for this blog is not to write a tradtional review due to the similarities to the Leader 3 but to cover the keys settings and physical changes I'd strongly recommend to enjoy this quadcopter.