US carrier availability
- Too little RAM (2 GB)
- Low pixel density screen (267 ppi)
Running Android 8 Oreo, the Samsung Galaxy J7 Star sports a 5.5-inch display with a classic 720 x 1280 pixels resolution, and employs a pretty generic design that Samsung’s been using for years on its less advanced phones. The handset is powered by a 1.6 GHz octa-core processor, further featuring a 3300 mAh battery, 2 GB of RAM, and 32 GB of expandable internal memory. The Galaxy J7 Star also offers a 13 MP front-facing camera and a 13 MP rear camera.
- Display size:
- Pixel density:
Pixel density – The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.
Technology – There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes.
Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed.
Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.
- Screen-to-body ratio:
Screen-to-body ratio – Shows what part of the frontal area of a phone its screen occupies.
- Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
- Rear camera:
- Aperture size:
Aperture size – The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.
- Hardware Features:
- Video recording:
- 1920×1080 (1080p HD) (30 fps)
- Video calling, Video sharing
- Front camera:
- 6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
the average is 5.9 oz (169 g)
6.38 oz (181 g)
- 6.38 oz (181 g)
Biometrics – Features and sensors that replace a traditional PIN or password as means of identification when unlocking your device.
- Touch sensitive control keys
Hardware & Performance
- System chip:
System chip – Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.
- Samsung Exynos 7 Octa 7870
Processor – The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.
- Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
GPU – The graphics processor is important for the smooth operation of the system and especially in games and other applications that may involve complex graphics and animations.
Memory – System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.
- Internal storage:
Internal storage – Bigger storage capacity allows you to keep more content saved onto your device, such as more applications, photos or video. Games and video content typically take up the biggest amount of storage space.
- Storage expansion:
Storage expansion – Some handsets allow you to expand their storage capacity by using a memory expansion card – most often microSD. Expansion memory is mostly suitable for media storage, such as photo, video or music content.
Capacity – The bigger, the better! However, battery capacity is not the only factor that has an effect on battery life. Those include the chipset in use, the software running on the device, as well as the consumer’s unique usage pattern.
- Talk time:
the average is 20 h (1223 min)
- 27.65 hours
- Stand-by time:
the average is 21 days (495 h)
27.9 days (670 hours)
- 27.9 days (670 hours)
- Music playback:
- Video playback:
- 850, 1700/2100, 1900, 2100 MHz
- LTE (FDD):
- Bands 2, 4, 5, 12, 66, 71
- SIM type:
- HD Voice:
- 802.11 a, b, g, n, ac, dual-band
- Mobile hotspot:
Mobile hotspot – Turns your phone into a Wi-Fi access point to which other Wi-Fi-capable devices can connect. These devices can then access the internet via your phone’s data connectivity.
Location – This field shows the positioning systems supported by the device. The most common types are GPS and A-GPS.
GPS – This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather.
A-GPS – A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization.
- NFC, ANT+, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
- Accelerometer, Gyroscope, Compass
- Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
- Hearing aid compatibility:
- Other features:
- Voice dialing, Voice commands, Voice recording, TTY/TDD
- Screen mirroring:
- Headphones connector:
- FCC approval:
FCC approval – The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC’s jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that is sold in the U.S. has to be tested and approved for sale by the FCC.
- Date approved:
Date approved – Shows the date when the particular phone is approved by the Federal Communications Commission
- FCC ID value:
FCC ID value – Shows the FCC Identifying value of the particular phoneA3LSMJ737T link
- FCC ID value:
- Date approved:
- FCC measured SAR:
FCC measured SAR – Working closely with federal health and safety agencies, such as the Food and Drug Administration (FDA), the FCC has adopted limits for safe exposure to radiofrequency (RF) energy. These limits are given in terms of a unit referred to as the Specific Absorption Rate (SAR), which is a measure of the amount of radio frequency energy absorbed by the body when using a mobile phone. The FCC requires cell phone manufacturers to ensure that their phones comply with these objective limits for safe exposure. Any cell phone at or below these SAR levels (that is, any phone legally sold in the U.S.) is a “safe” phone, as measured by these standards. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg).
- Simultaneous Transmission:
- Wireless Router:
- USB cable, Wall charging adapter, Start guide, Terms & Conditions
This device is also known as
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