s6 Active is exclusive with ATT. No other carriers got the s5 active so I doubt we will see that change. Also getting a bigger battery is not possible with the s6. As im sure we all know the s6 battery life isn't the best because of the 2k definition screen. To make up for that they made the device charge super quick. I personally have the s6 Edge and don't mind having to stick my phone on the charger for 30 min mid day to get it back to full. If you are the type of person to not have a charger available to you throughout the day I would recommend getting a portable charger. I use enerplex jumperslate 5000 and with its 2.4amp output It recharges my phone super quick.