JioPhone has 2.4 Inch QVGA TFT screen display. It has about 167 PPI ratio.
The standard packaging of the JioPhone includes Mobile Phone, Battery, Charger and Quick User Guide. You will not get earphone inside the box.
Yes, you can use Airtel sim card in the JioPhone but the Airtel sim card will work only on 2G network.
It does take about 2 hours time to fully charge the JioPhone's 2000 mAh battery.