The mystery of the fifth generation on both SIM cards – the story of Dual SIM 5G


The mystery of the fifth generation on both SIM cards – the story of Dual SIM 5G

The mystery of the fifth generation on both SIM cards – the story of Dual SIM 5G

EMGblog.com: Dual SIM phones have been part of the separation for a long time. It has become an inseparable part of the daily experience of most mobile users, and by using them, it is possible to manage personal and work calls or access plans and incentive offers of different operators in a single phone. The second SIM card slot also provides an easy option to insert a new SIM card while traveling, thus eliminating the need to remove the original SIM card. This technology has entered a new stage with the presence of the 5G network, and 5G dual SIM phones are gradually becoming available. The approach of the manufacturers in the field of 5G with two SIM cards is different, which we will get to know further.

Concept Two 5G + 5G SIM cards

Although there are many dual SIM phones with 5G capabilities in the market and now they are not limited to the high end of the market in terms of price, but they are not all the same in terms of the features of two 5G SIM cards. And some offer a noticeable advantage in this regard. As you can guess, the capability of dual SIM cards of the fifth generation or Dual-SIM 5G refers to the possibility of both SIM cards accessing the 5G network on one phone; Where you can access the same or different 5G network (depending on the operator) on each SIM card without the need to move SIM cards. This situation is not available for all models, and for some of them (which happen to be among the most important phones in this category), the 5G network is provided only on the main SIM card. In this case, the second SIM card has the maximum ability to work in the 4G network, and after physically moving it, it cannot work with fifth generation signals.

Realme X7 Pro Ultra

Phones supporting Dual-SIM 5G

Although we don’t see a long list of 5G+5G fifth generation phones, some of the most popular and affordable models on the market can be found among them; Among these phones should be Redmi Note 9T and Narzo 30 Pro pointed out that the former will be available in Europe and South Africa and several other markets (including USA) is present, but the latter is apparently presented only in the Indian market and some other few markets.

Redmi Note 9T

A step up among the more expensive phones on the market should be Realme X7 Pro and iQOO Z1 pointed out that they are still offered only in certain markets.

Processing chipsets supporting Dual-SIM 5G

Supporting 5G+5G on both SIM cards of the phone, as you can guess, depends directly on the processing chipset of the device and its communication modem, where a The name shines more than others in the last couple of years. The Taiwanese company Mediatek, which in the last one or two years has started a close competition with Qualcomm with the cheap Dimensity chipsets, from the very beginning by introducing Dimensity 1000 and its Plus version supported this feature and despite the fact that in The next two mid-range models are Dimensity 720 and Dimensity 800 There was no news about this option, but again on Dimensity 700 and Dimensity 800U This option was added to the list of features of the device’s chipset.

MediaTek, Qualcomm’s place in this list seems too empty and this company, contrary to expectations, still does not support the feature of two 5G SIM cards in its mobile chipsets; The reason or at least Qualcomm’s justification for this absence can be found in the speech of Alex Katouzian, senior vice president and head of Qualcomm’s mobile division, which can be found at A late 2020 interview with the website Android Authority talked about Qualcomm’s plan to offer 5G+5G dual-SIM feature with VoNR in the future; From Katouzian’s point of view, providing the feature of two 5G + 5G SIM cards requires the option of voice transmission over 5G (or VoNR), which will require the establishment of an independent 5G network (or 5G SA), and in the absence of an independent network and while the networks The current 5G is often on top of old 4G networks, not a real 5G dual SIM phone.

In simpler terms, according to this Qualcomm senior manager, the current 5G dual-SIM phones provide their data from the 5G network, and the 5G logo appears next to the antenna lines of both SIM cards, but when it comes to voice transmission and When it comes to calling (due to the non-standalone or NSA nature of this setup) there’s no choice but to fall back on the 4G network and what’s called VoLTE. In future networks, as Qualcomm intends, not only data but also voice will be transmitted on the 5G platform, and thus we can talk about the birth of a real 5G phone with two SIM cards.

MediaTek’s solution in this field, at least in theory, is not far from Qualcomm’s, and VoNR support has been mentioned as soon as the fifth generation (SA 5G) independent networks are ready in this company’s chipsets. In this case, despite the fact that the call and the voice transmission option in Mediatek Dual-SIM 5G phones are established through the 4G LTE network, but it is not said that this issue has not much effect on the choice of users of this category, and naturally, simultaneous access to two 5G networks is very important. It is higher than the type of voice transmission during a call.

But the problem does not end there and Mediatek’s decision to introduce the new Dimenaity 1200 chipset as “the first 5G chip with the possibility of providing two real 5G SIM cards (5G SA+5G SA)” brings this question to mind. It turns out that the company’s previous chipsets were apparently somehow deprived of offering two true 5G SIM cards, and Qualcomm’s claim in this regard was closer to the truth.

Huawei and Samsung, as two other manufacturers of 5G chipsets, have so far refused to comment directly on this matter.

The Future of Dual-SIM 5G

Despite the relatively significant number of MediaTek dual-SIM 5G phones, these phones usually do not have much presence in the international markets and until today, they are mostly only in the markets China and India have been made available, on the other hand, but Qualcomm’s approval to operate in the field of Dual-SIM 5G indicates the imminent provision of this feature in a wider range of mobile phones; An increase in the number of independent 5G networks will play an effective role in its spread.

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