Don’t copy the product, copy the strategy. And don’t copy from your own industry:
If you manufacture tablet devices, don’t embarrass yourself by drawing inspiration from the closest tablet manufacturer. Instead, figure out why you prefer to order pizza from the place across town rather than the place by your office, why you’ll never again let that barber with all the piercings cut your hair, and why you still pay to see every single movie starring Harrison Ford, and draw your inspiration from there.
(The right way to steal ideas, Fast company)