May 16, 1995




Radius Inc.
215 Moffett Park Drive
Sunnyvale, CA  94089

Gentlemen/Ladies:

     At your request, we have examined the Registration Statement on Form S-8
(the "REGISTRATION STATEMENT") to be filed by you with the Securities and
Exchange Commission on or about May 18, 1995 in connection with the registration
under the Securities Act of 1993, as amended, of an aggregate of 450,000 shares
of your Common Stock, no par value (the "STOCK"), 350,000 shares of which may be
sold by you pursuant to options granted or to be granted by you to your (or your
parents', affiliates' or subsidiaries') employees, officers, consultants and
independent contractors pursuant to your 1986 Stock Option Plan, as amended (the
"OPTION PLAN") and 100,000 shares of which may be sold by you to your directors
pursuant to your 1994 Directors Stock Option Plan, as amended (the "DIRECTOR
PLAN").  The Option Plan and the Director Plan are collectively referred to as
the "PLANS".

     As your counsel, we have examined the proceedings taken by you in
connection with the adoption of the Director Plan and the amendment of the
Option Plan to add the shares being registered hereby.

     It is our opinion that the 450,000 shares of the Stock that may be issued
and sold by you pursuant to the Plans, when issued and sold in the manner
referred to in the Prospectus associated with the Registration Statement and the
Plans, will be legally issued, fully paid and nonassessable.

     We consent to the use of this opinion as an exhibit to the Registration
Statement and further consent to all references to us, if any, in the
Registration Statement and any amendments thereto.

                              Very truly yours,

                              /s/ Fenwick & West

                              FENWICK & WEST