Jio had been my primary sim since Telenor exited India.
But I ported to Airtel in October for the following reasons :
1. I want an Airtel axis credit card, only airtel subscribers can apply for it Now.
2. I was facing missed call alerts issue on Jio even with full network bars. The other end used to listen that my number was Not reachable.
Although during that time my data used to work fine but no incoming calls.
Complained about this for months continously but their standard response always used to be : Kindly get your handset checked in a service center.
I used Jio on Poco F1, Moto Z2 Play, Oneplus Nord 2 and Samsung s21 Fe Snapdragon. But this issue remained unresolved till I left it.
3. Jio is extremely good in 5G speeds but in their 4G only areas the speed was useless. Airtel generally gives usable speed in 5G as well as 4G (Although their peak speed on 5G in UP West doesnt match Jio because govt has provided them only with 60Mhz of N78 in UP West)
4. Whenever I used to report any speed related issue with Jio they had a copy paste response - Slow speeds because many users were collectively using data at this place. They did not even assure to fix it.
5. Upload speeds are usually better in case of Airtel.
I don't like airtel for chargeable calls on numbers starting with 1860, I dislike Gopal Vittal.
But the above 5 points are enough for me to stay with airtel. I'll reconsider my decision of staying with airtel after my 2999 yearly plan expires.