7. HTC One M9

Finally, we’ve got HTC One M9. It is equipped with a 5.0-inch Full HD display, HTC Sense UI 7.0 based on Android 5.0 Lollipop (upgradable to Android 6.0 Marshmallow OS), a Snapdragon 810 chip set, 3GB of RAM paired with 32GB of ROM (expandable up to 200GB). In addition to HTC One M9 specs, Dolby Surround sound tech, a package of 4MP front-facing + 20MP rear camera, and a 2,840mAh battery supported by Quick Charge 2.0 also stay under the hood to bring users excellent performances.

So, those are the best 7 smartphones with longest battery lives you can take into consideration when being about to buy a new device. But exactly what do you think about them? Share with us!

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