The main difference between Lefant robotic vacuum and mop combo M210, M210B, M213 and M213S are as follows:

• Battery
  The M210, M210B and M213 equipped with 1800mAh lithium iron phosphate batteries whereas the M213S uses 2600mAh Ternary lithium batteries which has longer run time and cover larger area per charge.
• Max Suction Power
  The max suction of Lefant M210 is 1800Pa, M210B is 2000Pa, M213 is 2200Pa, whereas the M213S generates up to 3200Pa.
• Freemove Technology
  The M210, M210B and M213 feature Freemove technology 2.0 whereas the M213S features 3.0.
  “Freemove technology is Lefant’s original robot vacuum integrated whole body detection technology. The built-in infrared sensors can sense obstacles encountered by the whole body and retreat.”
• Run Time
  The M210, M210B and M213 run up to 100 minutes per charge whereas the M213S has a max run time of 150 minutes.
• Remote Control
  The M210 comes with a remote control whereas the M210B, M213 and M213S do not include the remote control.
• Mopping Kit
  The M210 does not come with the Mopping Cloth
  & Mopping Cloth Bracket that the M210B, M213 and M213S include. The mopping kit turns the vacuum cleaners into vacuum and mop combo.
  However, the M210 can use the mopping kit, you just have to purchase the kit separately.
• Height
  The M213 and M213S is a bit taller than the M210 and M210B.

Otherwise, they are similar.

• They have no main rotating brush at the bottom, but with a suction hole. The suction only design eliminate hair tangled brushroll problems.
• The mopping kit does not use a water tank like many other vacuum and mop combo robots, instead, it uses a bracket to hold a wet pad.
• Though they create a real time map that shows you where it cleaned, they do not map out your house, they do not create a map for further use, such as letting you create virtual barrier to restrict them from entering No-go zones, or circle an area to get it to clean only that spot.
• They do not recognize magnetic strip like some other robots on the market, they do not allow you to set virtual walls in the App.
• They have schedule feature.
• They can go back to the charging base when battery runs low or the cleaning job is done.
• They cannot pick up where they left off.
• They do not recognize carpeted surfaces.
• Supports App control and voice control via Alexa and Google assistant.
• They can work without WiFi. However, those functions require WiFi will not work.
• They only support 2.4GHz WiFi only.
• They do not have self empty base and they cannot empty them by themselves.
• That have 500ml dust bin.
• They equipped with HEPA filter that help emit clean hair.
• They carry one year limited warranty.