Flywoo Hex Nano is the smallest BNF (bind and fly) hexacopter, measuring only 90mm from motor to motor. Despite its small size, the Flywoo Hex Nano is powerful enough to carry the Insta360 SMO, a 30-gram version of the Insta360 One R 4k mod or Insta360 Go 2.
When the Hex Nano was first released, I wondered about adding a DJI digital VTX to it, and now Flywoo has indeed launched a new version with a DJI-compatible digital VTX. It is one of the lightest digital quads, at just 74 grams without battery and with a 4S 450mah battery (around 52.9 grams), it weighs just 126.9 grams.
The new Hex Nano HD uses a naked Caddx Vista Nebula Nano, i.e., the three thick heat sinks were removed to make it more compact and to reduce the weight. The regular Caddx Vista Nebula Nano weighs about 24.6 grams including the camera. The naked Caddx Vista weighs 40% less, at just 14.8 grams with camera included. The disadvantage is that the naked Vista could overheat faster but this should not be an issue as long as you are flying. Another issue is that the VTX antenna connector, which is normally secured by the top heat sink, no longer has a cover on it. It seems that the Hex Nano’s top plate may be acting as a cover for the VTX antenna connector.
The Caddx Vista, like the DJI Air Unit, has a built-in receiver, and if you opt to use that instead of an additional receiver, then the weight becomes even closer to an analog VTX, camera, receiver and antenna.
The Hex Nano HD is $299, which is around $140 more than the analog Hex Nano Betaflight version, which is similar to the cost of a Caddx Vista Nano ($139). It would have been nice if they could reduce the price by another $20 or so for the analog VTX and camera that were replaced. I suppose the extra cost is due to the cost of having to convert the Caddx Vista to a naked version, which includes removing the thermal paste.
At $299, the Hex Nano is about the same cost as cinewhoops such as the Beta95X v3 (2.5-inch props; $279 for digital version) or even the Pavo30 (3 inch props; $309 for digital version). Although a larger quad would have more thrust and can carry a heavier camera, the Hex Nano can be flown in smaller spaces. Hex Nano HD is available direct from Flywoo.