Smartphones are referred as those mobile phones that can do the job of a mini computer. Smartphones now incorporate a wide array of features that involves advanced computing ability as well as connectivity. On the other hand, the Basic phones are those ones that are made to perform only some basic features like making and receiving calls, sending and receiving text messages.
Smartphones are mobile phones that work on an operating system, very similar to that of a mini computer. Apart from the basic facilities like calling and sending messages, it should have computing capabilities, that include online surfing, video conferencing, good performing cameras, GPS navigation units, media players, etc. So any mobile phone that can do the work of a computer can be in a way considered as a smartphone.
Coming to the Jio 4G phone, it comes with a 2.40-inch display along with a resolution of 240 pixels by 320 pixels. Now in comparison to other smartphones in the market, the display quality doesn't even qualify to get compared. So, it doesn't qualify as a smartphone when it comes to the regular expectations.
The Jio Phone runs on a 1.2GHz dual-core SPRD 9820A/QC8905 processor and with 512MB of RAM though it gathers 4GB of internal storage which can be expanded up to 128GB through a microSD card. It does have a pair of cameras too with a 2-megapixel primary camera and a 0.3-megapixel front shooter for selfies. There again it cannot be compared with the high-performance cameras we get to see in regular smartphones.
The Jio Phone operates on KAI OS powered by a 2000mAh removable battery, it is a single SIM (GSM) mobile with connectivity options like Wi-Fi, Bluetooth, GPS, NFC, FM, Headphones and supports a 4G network.
That makes in a disputable issue, whether or not we can call it a smartphone. Technically, we can say Yes, but when it comes to regular expectations, it would not qualify as one. Finally, few things depend upon the trends too. As it does have computing abilities, we cannot just reject it to be called as a smartphone, but certainly, it is not smart enough to be compared with today's smartphone models.