A few weeks ago, Huawei launched its highly anticipated Huawei Mate 40 series smartphones in the market, making it the first devices to come powered by the company’s own Kirin 9000 SoC.

Now, if the statements coming from the company’s executive are to be believed, then it could be the most complicated smartphone to make in the series so far. Richard Yu, CEO of Huawei’s Consumer Electronics Business said that it took them three years to make the Mate 40 series phones.

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He added that the Huawei Mate 40 series has now become the company’s longest development lineup and one of the most difficult. For the first time, the company used the 5nm chipset in the phones — HiSilicon Kirin 9000.

The primary reason for such a long duration for the phones in the making is the chipset. Huawei had to develop its own Intellectual Properties (IP) since they cannot get it from the outside, and this takes up a lot of time — from planning to production.

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Because of the development of its own next-generation advanced chipset and the longer duration for the Research & Development, the total investment from the company for this Mate 40 series is also among the largest from the company so far.

Additionally, the Mate lineup from Huawei is well-known for the camera performance and the company took care of that part in this year’s models as well. Further, the company is also trying to offer advanced 5G connectivity support.

Adding to the cost and time for development is the software department. Despite getting banned from using Google’s Android operating system because of the restrictions imposed by the United States, the company keeps on improving its EMUI custom user interface, which is now based on Android Open Source Project (AOSP). But, there are reports that from next year, the company will transition its devices to HarmonyOS.