Huawei’s Mate 90 Pro Max supports three active SIM connections simultaneously, making it one of the more flexible dual-SIM phones available. The flagship was launched in China alongside the Mate 90, Mate 90 Pro, and Mate 90 RS.

Huawei’s official specifications confirm that the phone can accommodate two physical SIM cards and two eSIMs. However, users cannot activate all four connections at once. The supported configuration allows two physical SIMs and one eSIM to remain active simultaneously.

How the Mate 90 Pro Max SIM setup works

The phone’s three-SIM mode comes with an important limitation. Huawei states that two of the three active connections must use the same Chinese carrier. That means the feature is not simply a way to run three completely independent networks under any combination of providers.

The arrangement could still be useful for people who need multiple numbers active on one device, particularly when combining physical SIM cards with an eSIM. Huawei’s specifications page is the source of the technical details, while the unusual capability was also highlighted by an X user.

Mate 90 Pro Max specifications

Beyond its SIM functionality, the Mate 90 Pro Max is powered by Huawei’s Kirin 9050 Pro chipset and includes a 6.9-inch display. The phone also has a triple-camera system on the rear and a 6,800mAh battery.

Huawei has not described the three-active-SIM configuration as support for four simultaneous connections. Instead, the phone’s hardware supports four SIM profiles or cards in total, with the active limit set at three: two physical SIMs plus one eSIM.

Availability and carrier requirements

The Mate 90 Pro Max was introduced in China as part of the Mate 90 lineup. Huawei’s carrier condition is especially relevant for buyers who plan to use multiple networks, since two of the three active connections must come from the same Chinese carrier.

The feature therefore stands out less as a universal three-network solution and more as a specialized option built around China’s carrier requirements. Whether the same configuration will be offered outside China is not established by the available information.