UDI i251HW Folding FPV Camera Drone Flight Test Review

This little folding quadcopter is very portable, and includes telemetry for low battery warning, altitude, and relative signal strength. Find it here and use coupon code 'UDI5" for 5 dollars savings
Pros
- All arms easily fold for compact transportability.
- Altitude hold, auto takeoff and landing, and headless mode.
- Good flier, maneuverable yet steady for aerial photography.
- Can be controlled either via its provided controller or via the Flyingsee app available on Google Play here iTunes here
- 7.4V 350mah battery gives flight time close to 6 minutes flight time.
- Include telemetry warning through controller for low battery and weak control signal. Flyingsee app also shows quadcopter's battery level, height, and received signal strength (RSSI).
Cons
- Proprietary battery and charger.
- Low resolution 0.3MP video. Camera is also angled downward making FPV flying difficult.
- The quadcopter is listed as having a 2MP camera as it also takes and saves "photos" in 2MP resolution. However the photos have been blown up (interpolated) from the camera's low resolution 0.3MP sensor. There is no mention of 720p video in the listing, and indeed this quadcopter only records video in 640x480 pixel resolution.
- Relatively short range WiFi FPV signal, with quite a bit of WiFi lag in recorded video.
- Proprietary battery.
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