The Atamos Ninja Blade is a simple but effective HDMI 1080p Recorder. Recording to reliable Solid State Drives in Apple ProRes or Avid DNxH. These are popular for event filming, allowing multiple hours of recording without needing to change cards and wrangle on set. A 480gb SSD will get approximately 5 hours of recording at 1080p HD, longer with a more compressed codec.
These are also very useful as an external monitor, particularly for gimbals as they are incredibly light. Has a 5" 1280x720 touchscreen display and weighs only approx 600g with battery and SSD (unit is 310g with no batteries).
Simple to use touchscreen display provides key features such as focus and exposure assist.