Galaxy Note 9's improved battery life teased in new Samsung advert

Samsung is gearing up the launch of the Galaxy Note 9 and one of the foreshadowed feature upgrades is an improved battery. The ad shows how battery life on flagship smartphones can be challenging specially with apps and services hogging Wi-Fi, GPS, Bluetooth and other features.

Will Samsung ship the device with the rumured 4,000 mAh battery? Do they have improved software that can optimize battery life? We will know more on August 9 when Samsung unveils its premium phablet.