But which is better?
The honest answer is that neither of these kits wins outright, because they are built for different people. If you are looking for a conclusive, expert opinion, we may struggle to arrive at one. As is often the case when our team debates matters such as these, opinion is split.
If you were to press us either way, we would probably suggest as follows:
Buy the Hayati Pro Max Plus if price is the deciding factor. It's the cheaper kit at £9.95 (albeit marginally), and its auto-refill system demands very little of you. The 20mg nic salt also makes it the stronger option for a smoker who wants a firm hit from the off, which is often exactly what someone making the switch is after.
Buy the Lost Mary BM6000 if you would rather have staying power and a gentler draw. The larger 1000mAh battery means fewer charges, and the 10mg strength (with a 0mg option in the wider range) would probably suit anyone who finds 20mg too much.
Your decision comes down to two factors, really. Do you want the stronger hit or the softer one, and does a bigger battery matter to you more than a wider choice of nicotine strengths and flavours? Answer those, and you have your answer.
Alternatively, you could just buy both - cost of living crisis be damned.