Apple ProRaw Reportedly Eats Up iPhone Storage, But There's An Easy Fix To Save On Space KEY POINTS ProRaw makes lossless imagery possible but takes up a huge amount of storage iPhone holders can turn the feature on through the iPhone setting While there's no doubt that Apple’s newest photo format brings in the flexibility of raw photo editing, it could be at the cost of sacrificing your phone's performance. The new ProRaw feature has reportedly been proven to eat up a huge amount of storage in every use, says a report by USA Today. Apple introduced ProRaw in 2020 to iPhone 12, iPhone 12 Pro and iPhone 12 Pro Max. The feature made it possible for photographers to explore their computational photography ability using their Apple devices.