Quick take
Who should look closely at Bianca?
Bianca makes the most sense for a home barista who enjoys adjusting technique and wants a machine with enough steam and brew capacity to grow into. If you mainly want repeatable espresso with fewer variables to manage, Elizabeth may be the cleaner fit.
What you are paying for
Bianca uses dual stainless steel boilers, an L58E group, a paddle system for manual water flow control, an OLED control interface, and pressure gauges. Lelit also lists direct water supply and direct discharge capability. The US product page currently lists a 2.5 liter water tank and a heat up time under 24 minutes.
Those features make Bianca unusually adjustable for a home machine. They also mean there is more to learn. That is part of the attraction for the right buyer.
Bianca vs the less expensive Lelit options
Bianca vs MaraX is the comparison to read if you like the L58E group but are deciding whether you need dual boilers and manual flow control. Bianca vs Elizabeth is more useful if you already know you want a dual boiler and are choosing between convenience and a more tactile enthusiast workflow.
Things to consider before buying
Bianca is a substantial machine and asks for more counter space than a compact model such as Victoria. The paddle is useful only if you want to engage with it. A capable grinder and suitable water also belong in the budget. Spending heavily on the machine while treating the grinder as an afterthought can leave much of the machine's potential unused.
Product specifications and reference pricing in this page set were checked against Lelit manufacturer materials during preparation. Prices and availability can change.