In my country, it was slow & costly before. But now a company Reliance Jio providing us 1GB 4G data per day for 28 days for less than $5 and 2GB 4G data per day for 28 days for less than $8 only. So it's providing 28GB for $5 and 56GB for $8. Unlimited calls inside our country also included in both plans.
How much it costs 4G data in your country?