The Nothing Ear (1) LEFT image is actually priced cheaper (with discount) than the Nothing Ear (stick) RIGHT image at the moment. But yes, it most likely is that its just the stock that is available was from before the price increase.
Not sure why the Nothing Ear (1) uses the Ear (stick) product photos btw. Could be very confusing for people that dont know the brand/products very well.
In any case, great opportunity to get them as a gift to someone for Christmas ;D