The Xiaomi Redmi Note 4 was originally launched back in August 2016 and many people were surprised that Xiaomi had decided to make the new device only an incremental upgrade as it featured the same display, design, and a few other features as its predecessor, the Redmi Note 3. In spite of this, the Redmi Note 4 has proven to be a popular device and the folks have FoneArena have published a teardown of the Note 4 just to see how its insides exactly look like.
Looking at the teardown video and pictures, the Redmi Note 4 features only a few major assemblies. Aside from the battery, fingerprint sensor, and cameras, there are only three major component assemblies in the Redmi Note 4 including the USB assembly which holds the main speaker and vibrator components, the micro USB assembly which hosts the micro USB port and main microphone, and the main motherboard assembly where most of the device’s internal components can be found.
Interestingly though, the Snapdragon 625-powered variant of the Redmi Note 4 uses a Sony IMX 258 rear camera sensor while the MediaTek-powered model from China uses a Samsung S5K3L8 ISOCELL sensor, although the folks at FoneArena note that it’s possible that other batches of the Snapdragon 625 variant of the Note 4 could be using Samsung sensors as well.
The video also shows that while many of the components are connected to the device via screws, some of the other components are only either glued or use double-stick tape such as the fingerprint sensor and battery. Even the back cover and display are only connected via friction and can be easily separated sing thin plastic tools.