Samsung Galaxy J5 (6) and J7 (6) battery life test score is out: great longevity

Samsung's new affordable phone line: the 2016 J series has just recently landed in our office and while we're doing the usual testing and active use of the phone as we prepare for the full review, we have a little tid-bit to share with you. 

We're talking about battery life, and expectations here are high: after all, the new J series phones have fairly large batteries, while at the same time running a display that does not need to push all that many pixels, and they support Android 6 Marshmallow with its Doze improvements in battery stand-by.

First, let's take a look at the specs: the 5.2-inch Galaxy J5 (6) with its 720 x 1280 pixel screen features a 3,100mAh battery, while the 5.5-inch Galaxy J7 (6) sports a 3,300mAh battery.

We put the phones through our custom test that measures typical smartphone use with the screen always on during the test. Also, we have the displays set at 200 nits of brightness, a level comfortable for indoor viewing and a level that we uniformly set for all phones to have equal conditions. With all this in mind, here are the battery life numbers for the Galaxy J7 (6) and Galaxy J5 (6).

Battery life (hours) Higher is better
Samsung Galaxy J5 (2016) 8h 41 min (Excellent)
Samsung Galaxy J7 (2016) 10h 59 min (Excellent)
Samsung Galaxy S7 6h 37 min (Average)
Apple iPhone 6s 8h 15 min (Excellent)
Google Nexus 5X 6h 25 min (Average)
Xiaomi Redmi Note 3 12h 36 min (Excellent)
Meizu M3 Note 11h 6 min (Excellent)
Honor 5X 6h 54 min (Average)
Charging time (minutes) Lower is better
Samsung Galaxy J5 (2016) 153
Samsung Galaxy J7 (2016) 139
Samsung Galaxy S7 88
Apple iPhone 6s 150
Google Nexus 5X 100
Xiaomi Redmi Note 3 153
Meizu M3 Note 150
Honor 5X 170

Related phones

Galaxy J5 (2016)
  • Display 5.2" 720 x 1280 pixels
  • Camera 13 MP / 5 MP front
  • Processor Qualcomm Snapdragon 410, Quad-core, 1200 MHz
  • Storage 16 GB + microSDXC
  • Battery 3100 mAh(21h 3G talk time)
Galaxy J7 (2016)
  • Display 5.5" 720 x 1280 pixels
  • Camera 13 MP / 5 MP front
  • Processor Samsung Exynos 7 Octa, Octa-core, 1600 MHz
  • Storage 16 GB + microSDXC
  • Battery 3300 mAh(23h 3G talk time)



1. igy_tech

Posts: 19; Member since: May 15, 2015

Not strange due HD resolution. Big resolution kill battery. For battery with same screen tehnology is better HD with 3000mAh then QHD with 3000mAh. That is why I would like that FHD didn't go from flagsips.

2. GreenMan

Posts: 2697; Member since: Nov 09, 2015

@igy_tech And yet the fandroids never miss an opportunity to bash iPhone because of its lower resolution...!!! Anything beyond 300PPI is rather pointless, in my humble opinion... Oh well... G'Day!

5. doejon

Posts: 411; Member since: Jul 31, 2012

lol because of VR its not pointless its actually still too low we need 4k dsiplays cuz VR is realy fun u have to try it..

6. AndroidBoy21

Posts: 72; Member since: Dec 29, 2015

I remember when you were new Not a troll Why are you a troll

3. rd_nest

Posts: 1656; Member since: Jun 06, 2010

It's not clear cut like you mentioned. You have to first understand how much of the 3300 mAh battery have been consumed by display and how much by processor. If you look at actual display consumption, it's normally less than processor/modem utilization. In S7, display will use less than 1000mAh with around 8hr SOT (in average). You will then have to analyze how much that display utilization is actually related to the resolution and the actual size of the display. Still today, the majority of the battery is consumed by processor/modem/standby drain. A more efficient processor always helps.


Posts: 1168; Member since: Oct 05, 2015

Really? My phone reports that the display uses the most. Could be wrong, though. If it did actually use the most, then why does the best battery life typically belong to huge screened phones? The same phones with screen surface areas that more than double that of smaller phones, but without double the battery. Display really must not use the most, at least with certain phones

7. QWERTYphone

Posts: 654; Member since: Sep 22, 2014

No removable battery = FAIL

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