BraX3 - Full Device Specifications

Is there a way to distinguish between batch1/2025 and batch2/2026 models? I’m mainly asking because over at Other OS Options it’s mentioned the preloader differs. I’d like to confirm I do indeed have the updated model. (I can’t tell a difference in screen brightness between my 2025 & 2026 models side-by-side showing the same content, so I’ve a seed of doubt.)