Case

Compared with the predecessor, the casing of the OnePlus 3 has been revamped. The manufacturer now relies on an aluminum unibody that looks like that of HTC's 10 or Huawei's Mate S. With just 7.35 millimeters (~0.3 in) in height, the smartphone is noticeably slimmer. We measured 6.8 to 7.8 millimeters (~0.27 to 0.31 in) depending on the position. The camera juts out by approximately one millimeter (~0.04 in).

At 178 grams (~6.3 oz), the newer model has gained some weight. This is not a problem in everyday use, and conveys a certain degree of quality. It is a shame that OnePlus has discarded the sandstone-like back. However, it is possible to refit it with an optionally available cover.

The build is of a high standard. The manufacturer does not slip up anywhere here. The gaps are completely even and the SIM tray also closes flush with the rest of the casing. The body is quite twist-resistant and does not make a noise despite several warping attempts. Generally, wave formations do not appear on the screen thanks to the underlying OLED technology.

Up to two nano-SIM cards can be inserted in the card tray. Once again, expanding the storage of the OnePlus 3 via a micro-SD card is not possible. The battery is non-removable, making it impossible for the user to replace it.