The Beholder DS1 Camera Stabilizer $699.95 can handle up to 3.8 pounds or 1700 grams. Get an extra set of batteries when you pre-order a DS1. The DS1 is supported by a 32-bit board and dual IMU sensors increasing stability and allowing inverted operation.
Check out Darren Miles review of the Beholder MS1 Camera Stabilizer $499.95. For a limited time, save 10% and get an extra battery set by watching his review. Supported Cameras are BMPCC, NX500, A6000, Sony A7s, A7ii, GH3, GH4, GH6, G7x, max 1.9 pounds/850 grams.