Take pre-orders for an unfinished hardware product now, or keep improving it for another 6-9 months? (I will not promote)

Me and my co-founder are building a small hardware product: a screen-free study timer for your desk. Instead of a screen it shows your progress mechanically, little elements pop out while you work. There’s also an app that’s already live. I’m studying full-time and my co-founder works full-time, so this is all happening on the side. We haven’t registered a company yet. We have 5 working prototypes that we’re about to give to testers.. The device works, but it still has some flaws, and honestly I’m afraid people will reject it because of that. So we’re stuck between two options: Option 1: start taking pre-orders with a deposit now and sell in about 3-6 months. Not mainly for the money, but to see if people actually pay. With the deposit we’d add a short survey to learn who our customers really are. Until shipping we fix what we can and see what feedback comes in. Option 2: keep improving, design the next version first, and only start selling in 6-9 months. The dilemma is that everything still feels kind of unfinished. I don’t know if people expect it to be perfect, or if we should just go for it and see what happens. Honestly, option 1 excites me. Getting the first money in would make it real, and once someone has paid, I’m accountable. I have to deliver, and I like that kind of pressure. On the money side: before we can sell at all, we need certifications that cost around 3,500 to 5,000 €. Including that, we’d have to sell roughly 200 units before we’ve made our money back. I know there’s a legal side to taking deposits, I’ll sort that out separately. This is more about the strategy. For those of you who’ve launched hardware: did you sell before it felt finished? And did early customers forgive the rough edges, or did it hurt you?