10 Epic smartphone fails we'll never forget.

Rated a 3/10 fail because review units broke before launch, though it was caught before reaching consumers.

The Facebook phone was underwhelming, with features available on better Android phones, earning a 3/10 fail.

The luxury concept was not the problem, but handmade phones were always a year behind on specs, giving a 4/10 fail.

An exciting modular idea that was too complex to work, rated a 4/10 fail since it never reached a final product.

A social-media phone missing basic features like an app store, rated a 5/10 fail.

A cinema camera firm's phone ignored what makes phones work, so it gets a 6/10 fail.

Called the worst smartphone ever, with an unpolished OS and laggy typing, rated 7/10 fail.

A $4 phone that was close to fraud, with few orders delivered, rated 8/10 fail.

Bendgate was somewhat blown out of proportion but still damaging, rated 8/10 fail.

Especially prone to bending in the Bendgate saga.

The biggest fail: exploding batteries, a recall, and then the same mistake again, rated 9/10.