Treo 600 was a smartphone developed by Handspring, and offered under the palmOne brand (later Palm, Inc.) after the merger of the two companies.

Released in November 2003,[1] it has a number of integrated features and it is possible to check the calendar while talking on the phone, dial directly from contacts list, take pictures or send emails.

It includes a five-way navigation button and favorites screen allowing quick access to the phone functions.

The back of the Treo is simple enough with a Palm logo at the bottom with a reset pin hole offset to the right.

On the back of the phone towards the top is a sticker with various serial numbers and a triangular-shaped speaker grill offset to the left.