I like both Oticon OPN and Signia Nx, but I have only used the older Signia PX model. I have friends with the Signia Nx and they are happy with the HAs.
The *Oticon Velox Platform with “Brain Hearing” might be two years old, but is still offered in all new Oticon variants of the OPN.
My understanding is, **Signia Nx Platform uses an updated chip with OVP with has specs now closer to the Oticon Velox.
Oticon OPN connect Bluetooth directly from iPhone, iPad and SELECTED Android phones. With a Connect Clip streamer, Oticon OPN connect via the streamer device to and from all Android as well as iPhone.
Signia Nx also connect Bluetooth directly from iPhone. And with Streamline Mic streamer, Signia Nx connect via the streamer device to and from Android and iPhone.
Pretty much of a muchness between the two, so far.
My personal opinion is that my Oticons are easier and less tiring to wear and speech is easier for me to listen to, that my Signia Px.
But, your hearing loss is very much different to mine, so I suggest the only way for you to decide which is more suited to your situation, would be test both brands for at least two weeks each. Let us know what you decide please.
*Oticon Velox Platform
• 50 times faster data processing than ever before
• 64 frequency channels for higher resolution
• Full environmental analysis 100+ times a second
• Capacity to handle 1,200 million operations per second
• Revolutionary TwinLink™ wireless communication
• 2.4 GHz for advanced connectivity
• Speech Rescue™ LX, frequency composition technology
**Signia Nx Platform
• Ultra-small 40nm technology – 40% smaller than industry standard
• 75 million transistors – 3.5x more than predecessor platform primaxTM
• Super-fast 500 MIPS processing power – 60% more than primax