Measurably more megapixel (photo, front camera)
6.67x more megapixel (photo, front camera)
Noticeably lower SAR for body (USA)
0.14 W/kg lower SAR for body (USA). SAR (Specific Absorption Rate) describes how much radio frequency energy emitted by the device will be absorbed by your body. The rate is measured at hip level. The legal limit is 1.6 W/kg in the USA.
Has a gyroscope
A gyroscope is a sensor that can be used to either measure or maintain the orientation of a device. Traditionally, they were built using a spinning rotor to detect changes in orientation, eg. twisting or rotation.