Research on candidacy for Soundrecover seems to be very varied, but it has recently been demonstrated as beneficial even for moderate hearing losses. Obviously the original design was for profound high frequencies, dead regions, etc. but it’s certainly shown to be helpful in a number of different types of hearing losses. In any case I certainly didn’t mean to say that Soundrecover is of any particular importance, just that it’s the only difference between the Versata adult product and the Nios V paediatric product, so essentially you can look at data about the Versata also.
Not sure where you are located, but do you not have a trial period with each hearing aid? Although your daughter is a bit small to give you any detailed feedback on her experiences she might still have preferences, and your audiologist can take Real Ear Measurements (a measurement of how the hearing aid performs in her actual ear) of both and recommend one over the other in terms of which is a better match on paper. Particularly important as she’s likely to have a rather unusual ear.
You may also have a preference in terms of your own handling, which is easier to manipulate, which looks more comfortable on her ear, does she mess with the settings on either one, can she open the controls or battery door by mistake. Nios has a locking battery, not a whole locking comparment so kids can open the compartment but cannot remove the battery inside, so it might get annoying if she can flip the cover open and expose the most delicate inside of the aid to moisture. There’s no substitute for trying things.
It occurs that if your audiologist seems to have little to offer on the subject then you might want some second opinions. If you are restricted for insurance reasons it might still be worth going “off plan” and paying for some advice from someone with the experience to talk you through the products with your daughter’s specific medical history in mind. If you aren’t restricted to this audiologist I’d look to shop around for someone who can give you convincing reasons for preferences between the two aids but is happy to offer you a try on either one or both. If your original audi is sensible he should know where his expertise ends and be perfectly happy to continue working with you on the other aspects of your daughter’s care while you go elsewhere to look for more on hearing aids. It’d be a bit rich if he went all put out about it if he’s not able to talk you through the products.
I don’t know anything about bandwidth!
EDIT: this one appeared while I was writing
I find that very interesting as it’s been described in other research as “the most important advance in paediatric audiology in 12 years” (I may be hazy on the actual number, but it was a large number of some kind). It was added to the Nios when left off the equivalent adult product because it was considered so vital for children. Sounds like there is some considerable disagreement in the industry! I think that’s what makes it so important to read around, take all the advice you can and see who is saying what and why they are saying it. Are Phonak just selling the benefits of this feature to sell more hearing aids? It’s certainly a possibility that has to be considered.