Obviously Qualcomm Quick Charge 4 & 4+ gonna charge faster than Qualcomm Quick Charge 3, which will be available with the next generation Qualcomm Snapdragon 835 processor. Which will charge faster, more efficient & will run cooler than previous generations like Quick Charge 3, Quick Charge 2 & Quick Charge 1.
As per Qualcomm if we compare Quick Charge 3.0 & Quick Charge 4, Quick Charge 4 is up-to 20 percent faster, or 30 percent more efficient, while charging it remain 5 degree C cooler.
5 minutes of charging can make you 5 hours or more of battery life. Quick Charge 4 is designed to charge a smart-phone from zero to 50 percent in around 15 minutes or less.
5 V, 9 V via USB-PD, 3 V to 5.9 V or 3 V to 11 V, 20mV increments via USB-PD 3.0 PPS (Programmable Power Supply).
Let talk about Qualcomm Quick Charge 4+ 3.6 V to 20 V, 200 mV increments via QC charger & current 3 A via USB-PD,2.5 A or 4.6 A via QC & 27 W via USB-PD power on Snapdragon 845.
Quick Charge 3.0 will be available in some of our newest Qualcomm Snapdragon processors, including the Snapdragon 820, 620, 618, 617, and 430.
Quick Charge 2.0 increases the charge time up to 75%, & introducing compatible accessories like wall adapters, car adapters, and power banks. It is designed to charge twice as fast as Quick Charge 1.0. According Qualcomm it's around half the speed of Quick Charge 2.0 if you're charging from 0% for 30 minutes on a device that's turned off.
| Quick Charge 4+ | Quick Charge 4.0 | Quick Charge 3.0 | Quick Charge 2.0 | Quick Charge 1.0 |
| 3 V to 20 V | | 3.2v - 20v dynamic | 5V / 9V/ 12V | 5V |
| 27 W via USB-PD | 18W/28W | 18W | 18W | 10W |
| Snapdragon 845 | Snapdragon 835,630, 636, 660 | Snapdragon 820, 620, 618, 617, and 430 | Snapdragon 200, 400, 410, 615, 800, 801, 805, 808 and 810 | Snapdragon 600 |