Great Battery Life
We've been using the iPhone 6 for close to a year now and we've never had a problem with its battery life. For the most part, we've been able to get a full day of use out of the phone when using a combination of Wi-Fi and cellular data. If you've talked to someone who is frustrated about iPhone 6 battery life, there's a good chance they're using way too much LTE.
The iPhone 6's battery life isn't going to blow your mind but it's solid for a phone of its size. And remember, it's only going to get better.
Once iOS 9 arrives, you'll have an extra hour of battery life at your disposal and some tools that will help you keep your battery life stable as the phone gets older.
Mileage will always vary when it comes to battery life but if you're smart about it, you'll be able to get an extremely solid charge out of the iPhone 6.