To properly utilize and scan your Rocketbook notebook, your device will need to have a 1080p camera resolution. Unfortunately devises with 720p or lower cameras aren't able to successfully capture and recognize the QR code on Rocketbook pages.
A 1080p camera has a resolution of 1920 x 1080 (2.07 MP) while a 720p camera resolution is 'only' 1280 x 720 (. 92 MP). This means that as long as your devices camera has a resolution greater than 2.07 MP, you'll be all set.
A quick Google search can typically locate your devices camera resolution if you're unsure of it, but please feel free to email us at email@example.com for additional questions or assistance.