The NHS also supplies a Spirit Zest, and since your hospital dispenses the Spirit 3 they would also dispense a Spirit Zest. The Zest is just the same appearance as the 3, just smaller. The bad news is that it may not fit your hearing loss, in which case you cannot have a mini BTE on the NHS.
Personally I find Oticon’s designs chunky, it’s just the way they put the aids together. If you live in England you are theoretically entitled to go to any hospital of your choice, but you’d have to phone around and find one which will dispense other aids. Bear in mind that all follow-up and repairs will also be done at the other hospital, so if it’s miles away that might affect your decision. The other NHS mini BTE is the Siemens Reflex L.
You have to balance visuals against function, the Reflex L has no program button, no Telecoil and no volume control. Of course a hearing aid which does something is better than the one you keep in a drawer, and you may not feel the need of those functions.
I’d say start by calling your current audiology to find out if you are within the fitting range for a smaller instrument, cos if you aren’t there is no point travelling potentially 60 miles to be told that.
Also bear in mind that the NHS catalogue is due to change in August, so if you aren’t in the fitting range for the smaller BTEs at the moment, keep an eye on the changes by searching under “NHS Supply Chain” in a search engine. They may have Receiver in the Ear models on the next rotation, which would make smaller styles available for bigger hearing losses.
Oh, and I would advise that you want to change the hearing aid because its size is uncomfortable rather than for its visual appeal. You will win more friends that way with the NHS.