What are the differences between the Philips Lumea attachments?

The body attachment is included for all Lumea models. The body attachment has the largest window to treat bigger areas on the body. The body attachment does not have an extra filter in the attachment.

The facial attachment contains an additional integrated reddish glass, window or filter, which is specially designed for treatment of sensitive areas of the body (e.g. upper lip, chin or cheek) below the cheek bone. Do not use the precision attachment on the forehead, eyes or eyebrows.
The facial attachment is included in all Lumea models except SC1991 - SC1995, SC2004 and SC2005.

The bikini attachment has a special design for effective treatment of bikini areas. It has curved design with a transparent bikini filter. Hair in this area tends to be thicker and stronger then leg hair, therefore the bikini area attachment has a special filter for treating the coarser hair in the bikini area.
The bikini attachment is included in Lumea models BRI947, BRI948, BRI956, BRI959, SC1999, SC2008 and SC2009.

The armpit attachment - which is included in Lumea models BRI947, BRI948, BRI956, BRI959 - does not have an additional filter. It has a curved design to treat hard-to-reach armpit hairs.

The precision attachment is curved for use in bikini and armpit areas.
It has a medium-sized window with an extra-transparent filter. It is designed for precise and effective coverage of bikini and armpit areas.
The precision attachment is only included in Lumea models BRI946, BRI953 and BRI954.

Note: Lumea model series SC198x and BRI86x do not have a separate attachment but can be used on all the above-mentioned areas.