First of all, let's cover the basics. When we said Reliance Jio is launching a data-first 4G service, this is actually a quite literal description. The company's network only offers LTE service. That means that no fallbacks are present to 3G or 2G, eliminating the possibility to natively use an older device. Voice calls within the network will be done through VoLTE ( which must be present on both sides of the conversation, otherwise additional charges do apply) and when you combine the aforementioned two conditions, you can quickly get an idea as to why there has been such a fuss about supported devices lately.
Now, we definitely see why finding if your current handset is supported is a major concern and we wish that there was an easy list or method we could quote. However, there are also a few other factors, like TDD and FDD LTE technologies and LTE Bands that come into play. From what we can gather, Reliance is keeping things as broad as possible, by using 1800 MHz, but the info is unclear on this point as well. That being said, there are at least a few devices that we can already confirm will work on the network with some certainty.
