TOPSHAM — U.S. Cellular is inviting current or potential smartphone users to its device workshop on Tuesday, May 21, from 8 to 10 a.m., at 11 Winners Circle in Topsham.

At the workshop, U.S. Cellular associates will offer attendees hands-on assistance for Androidpowered, Windows Phone and Black- Berry devices.

The workshop is open to everyone. Call 725-2383 for more information.