The patent holder defines SAM.4 as variant chiefly for health conscious people, who are interested in monitoring their own health on a continuous basis. As a subtle or fashionable or sporty design is recommended for this target market, SAM.4 is especially suited for the construction and design as a wristwatch. Such diverse designable coherence meters aren't available at the present time (i.e. beginning of 2004). HBI GmbH is very interested in developing and distributing a SAM.4 in the framework of an OEM co-operation together with a competitive global player.