Samsung Galaxy J7 Prime Xiaomi Redmi 3S Prime 
Samsung Galaxy J7 PrimeXiaomi Redmi 3S Prime
magic score61.083.1
PriceRs. 16,499 onwardsRs. 8,999 onwards
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Launch Date (India)Sep, 2016Aug, 2016
Smartphone OSAndroid 6.0Android 6.0, Expected upgrade to 7.0
Screen Size5.5 inches5 inches
Screen Resolution1080x1920 pixels (~ 401 pixels per inch)720x1280 pixels (~ 294 pixels per inch)
Display FeaturesIPS LCD, Scratch Resistant (Corning Gorilla Glass 4), 2.5D Curved Glass DisplayIPS LCD, Reading Mode
Processor1.6 GHz1.4 GHz
Processor NameExynos 7870Qualcomm MSM8937 Snapdragon 430
GPUMali-T830MP2Adreno 505
Secondary Camera8.0 MP5.0 MP
Internal Memory16 GB32 GB
Expandable Memory Slotup to 256 GBup to 128 GB
Dual SIMGSM+GSMGSM+GSM (Hybrid SIM slot)
Thickness8 mm8.5 mm
Weight167 gm144 gm
Battery Capacity3300 mAh4100 mAh
Battery Talktime (3G)21.00 hrsN/A
Other Battery ParametersInternet Usage Time (3G): 12 hrs, Internet Usage Time (4G): 15 hrs, Internet Usage Time (Wi-Fi): 16 hrs, Video Playback Time (Hours): 14 hrs, Audio Playback Time (Hours): 84 hrsGaming: up to 15 hrs, Music Playback Time: up to 121 hrs, Reading Time: up to 39 hrs, Video Playback Time: up to 17 hrs
Editor's Note [Positives]
  • Full metal unibody design, and good build quality
  • Rounded sides make it comfortable to hold
  • The fingerprint scanner is generally quick and easy to use
  • Very good display - bright and vivid with decent sunlight legibility - great for watching videos and games
  • Samsung's UI over Android 6.0 is neat and simple while adding a number of additional features like one-handed operation mode, smart alert makes the phone vibrate when you pick it up to notify you about missed calls and messages, easy mute, S bike mode, Ultra data saving mode, and locking/privacy options
  • Decent all-round performance - handles almost everything you throw at it - including games, and multi-tasking
  • Decent rear and front cameras under daylight conditions - most of the shots taken by the smartphone have decent colours and are crisp - and the handset is able to lock focus quickly
  • Video recording quality is decent too and audio is also crisp
  • Decent loudspeaker output
  • Good call quality
  • Good audio quality
  • Decent battery life - lasts a day with moderate use
  • Compact, smart looking, premium design with a metal build - very similar to the Redmi Note 3, but more easy to handle (because of the smaller size)
  • Excellent ergonomics, with the curves on the back making the phone very comfortable to hold
  • Light-weight with an excellent weight distribution, despite the large battery it holds inside
  • Nice, vibrant, and bright display, with excellent touch-responsiveness, and good viewing angles
  • MIUI is a one of the better Android skins around
  • Very good speed/performance - one of the best in this price range
  • Decent camera
  • Excellent battery life - easily lasts a day and a half in regular use
  • Good audio quality
Editor's Note [Negatives]
  • Lacks ambient light sensor, gyroscope and magnetic sensor
  • The fingerprint scanner works well mostly, but can be iffy at times
  • Low light camera performance could have been better
  • Tends to crash/heat-up occasionally when put under stress
  • Lacks support for quick charging (which is present in some of its competitors)
  • Camera is decent, and almost at par with the more expensive Redmi Note 3, but still could have been better, especially with low light performance
  • Loudspeaker volume could have been better
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