Original 5% off Sitewide at eBay Deal Post
Feiyu Tech WG2 Wearable gimbal is suitable for most action cameras like GoPro Hero 5, Hero 4, Hero 3+ and Hero 3.
The Feiyu WG2 3-Axis Handheld Gimbal is now IP67 standard water-proof, which means you can dip it upto 1 meter of water and it will be operate as per parameters. WG2 allows you to capture stabilized, free-floating shots with your GoPro or similarly sized action cameras that are between 3.3cm and 4.6cm tall. It can be operated using a single hand. It also features 4 different operating modes for increased creative possibilities.
You can choose to lock the camera in place along all three axes (pan, tilt, and roll), or select modes where the camera will smoothly follow as you pan and tilt the handle. Switching between modes is done using a single LED push button on the handle, which flashes to indicate the mode selected.
Note that the battery is built in to the device, unlike some other models like the Zhiyun Rider M.. This may be somewhat of a limitation as the device ages and the battery wears out. Otherwise this unit has received great reviews for its performance and silent operation.
The next best price I can find from an Australian seller is $399 at Camerahouse.
I purchased one of the Zhiyun-Tech Rider-M GoPro gimbals a week ago while the PAINT 10% code was valid. So far I have been extremely happy with it.
http://www.ebay.com.au/itm/Zhiyun-Tech-Rider-M-Mini-3-Axis-H…
Its cheaper that the Feiyu-Tech model, very similar design and after doing my research, the general consensus amongst reviewers is that the Rider-M is better.
That being said, the Rider-M was designed for the weight of the GoPro 3/4. If you use the heavier GoPro 5, a community hack is to attach a small counterweight (one or two small coins) to the right hand motor for better stability during high impact sports such as mountain biking.
Here is a good review of its performance including a detail of the hack for a GoPro 5: https://www.youtube.com/watch?v=j5VTCS0D-l8