Looks like the SL60D got an upgrade.
I was looking to find the SL60D (same as mine) for a house warming and birthday gift but came across this deal instead.
Increase suction from 3000PA to 4000PA is the only upgrade that I can see.
Previous SL60 deal here from eBay: https://www.ozbargain.com.au/node/813928 @ $215.90
Something I don't see in the Lubluelu deals posted is the fact that they can have an additional auto empty bin not included and selling for $189. This is just as an honorable mention, I haven't used this so I can't talk to it being good or not.
Ordered the SL60D and bin during Black Friday sales. Still waiting for the Bin to arrive though.
The bin uses a Non-Reusable bin bag, though. Once it's full, you cannot empty it and re-use it - you must purchase another bag. It's been recommended at 1bag per month.
SL60D Gives about 30-45min battery time and then takes about 2 hours to recharge.
3bed, 1 Bath house and it'll do half the house mop and vac per cycle.
I recommend the SL60D for that price.
IF the battery is better on this model, then it may be a better buy for you.