The Diatone Roma f4 LR is the most recent full release in the new category of 4 inch micro long range quadcopters following on from releases by Flywoo, Iflight, GepRC and Eachine. It is available in a version with the DJI Caddx Vista and a cheaper version with analogue video Basic specs are similar to the others but I'll get into the detail in this review which separates the good from the great.
The 4 inch micro long range market is well established now with a solid Formula that has been developed by the very clever Dave Cledon (his youtube channel is here). In this review I am looking at Diatone's offering - the Roma F4 LR of which mine is equipped with the DJI-Caddx vista and Nebula V2 camera although most findings will be applicable to the analogue version as well. Diatone have always had great attention to detail including a solid tune (as I found recently with the larger Roma F5 here) so keen to see how this translates on the F4 LR.
The Roma F5 is a new 5 inch freestyle quadcopter from longtime quad maker Diatone. Diatone have launched with a number of configurations that differ mostly by video system:
It's been way too long since I last covered a Diatone quad, 2 years in fact since I looked at the GTR249+ here, a very well put together 2.5 inch micro. With the Roma F5 they have developed and all new frame, all new motors and VTX and ESC/FC combo under the Diatone Mamba Brand. They have gone top shelf with the camera on the analogue version too, the Runcam Phoenix 2 being one of the best currently available. I'm glad that Diatone and the other premium manufacturers are focusing on freestyle oriented ready to fly rigs rather than racing rigs as I think this is where the market is - Those who are genuinely interested in racing will tend to build them up from scratch to get the exact feel they want. Freestyle rigs on the other hand a more forgiving - for the most part frames, motors and other trends have remained more stationary so you know it won't date so quickly.
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.
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