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Mobile Data API's, eSIM and the Future of Connectivity

With wireless connectivity finding its way into all aspects of life, it has become unstoppable in terms of the endless capabilities it offers to mobile users, thanks to technological innovation and the app ecosystem. Smartphones are getting more advanced and are starting to develop even further with unmatched functionality and portability. They are so accessible that most people on earth have access to a smartphone of some sort. There is no doubt that anyone who needs to do business needs a phone or mobile data api to either stay in the loop or run operations.

Nowadays, business owners and even employees are given a chance to experience communication technologies firsthand. No longer do people have to carry several phones to have a SIM card fitted with their business number and another for their personal numbers. With eSIM technologies and virtual number apps, these can all be run from a single smartphone that is optimized and ready. 

The Power of the Modern-Day Cellular Data eSIM

Everyone who has a smartphone is probably connected to the world via cellular data. Accessing online sites and apps is a must while out and about, and with business never taking a break, any periods of downtime will be detrimental to opportunities and revenues. This requirement for connectivity is further supplemented by wireless eSIM technologies, which have been introduced few years back with Google Pixel phone and Apple’s iPhone XS, XR models. 

eSIM has the potential to store multiple plans on a single phone compared to the one-plan-per-phone system that has been in place for decades. This digital feature which works using QR codes allows backup connectivity, improved travel connectivity, and better personal vs. business plans. As such eSIM enables consumers to carry fewer phones around at all times while enabling them to benefit from more than one plan or service provider.

eSIMs Versus Traditional SIM Cards

The world of eSIMs is easily defined as embedded chip that is pre-built into a phone model, allowing users to activate new wireless plans user QR codes or activation codes. To run or bundle an eSIM efficiently with other pre-existing applications on any eSIM-enabled mobile device, mobile data API's must be developed and programmed to create a good fit. These APIs allow for maximum customizability and functionality between software and hardware components. 

Traditional SIM cards used a physically cut card that contained all the data of the cellphone plan and credentials. A glaring issue with this system is that these SIMs were susceptible to SIM swapping vulnerability. Additionally, only one card is usable per smartphone unless the phone is a dual-SIM variant that allowed two SIM cards simultaneously. 

Wireless eSIM Cellular Data’s Benefits

Newer eSIM technologies are expected to cut costs for wireless service providers, as there will be fewer needs to do the physical manufacturing, programming, and transportation of SIM cards. This elimination of manufacturing costs also saves resources and reduces carbon footprints caused by production lines and physical distribution. With everything stored on secure cloud and wireless cellular data networks linked through roaming, this can be advantageous for a multitude of use cases both locally or globally. 

With the ability to store multiple profiles on the fly (e.g. as provided by web or mobile apps utilizing wireless eSIM API), mobile users are assured that connectivity is more accessible and affordable than ever. The whole concept of eSIMs is to eliminate the use of physical hardware to access wireless broadband and communicate with others. As SIM cards and their trays take up significant space, even in their nano form on modern phones, eSIMs – and later iSIMs – are likely to take up only a small fraction of that space. The added space gives more room on the phone’s circuit board for improved processing technologies and more compact devices.


With modern technology giving plenty of improvements towards broadband connectivity and communications, future innovations around eSIM look incredibly exciting. For all those who need to stay connected, conduct business, travel frequently, or just require more than one plan (e.g. for backup connectivity for remote work or online learning), a wireless eSIM will fit their requirements and enable all their smart devices to be connected. Whether it is a smartphone, tablet, laptop, smartwatch, drone or car, any device with eSIM feature will have super connectivity powers and better access to new apps and technologies including 5G, cloud and edge computing.

CELITECH is at the forefront of connectivity API development for programmable mobile data API, supporting a variety of use cases of eSIMs. With different awards and media coverage under our belt, we can enable your online business, web, or mobile app to add an eSIM offering for better user engagement. Get in touch with us today to get a live demo.

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