Comparison between:
- Samsung Galaxy J7 Metal
- Samsung Galaxy A02
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Samsung Galaxy J7 Metal | Samsung Galaxy A02 | |
 |  | |
| Model alias | SM-J710M J710M | SM-A022F/DS SM-A022G/DS SM-A022M/DS |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 76 mm 7.6 cm 0.249 ft 2.992 in | 75.9 mm 7.59 cm 0.249 ft 2.988 in |
| Height | 151.7 mm 15.17 cm 0.498 ft 5.972 in | 164 mm 16.4 cm 0.538 ft 6.457 in |
| Thickness | 7.8 mm 0.78 cm 0.026 ft 0.307 in | 9.1 mm 0.91 cm 0.03 ft 0.358 in |
| Weight | 169 g 0.37 lbs 5.96 oz | 206 g 0.45 lbs 7.27 oz |
| Volume | 89.93 cm³ 5.46 in³ | 113.27 cm³ 6.88 in³ |
| Colors | Gold White Black | Denim Black Denim Gray Denim Red Denim Blue |
| Body materials | Metal Plastic | Plastic |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Micro-SIM | Nano-SIM |
| Number of SIM cards | 2 | 2 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| W-CDMA | - | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz | - |
| LTE | LTE 700 MHz Class 17 LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE 700 MHz (B28) | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) |
Mobile network technologies and bandwidth
Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
| Mobile network technologies | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE HSPA+ LTE Cat 4 |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Android 6.0.1 Marshmallow | Android 10 |
| User interface (UI) | - | One UI 2.0 |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | Samsung Exynos 7 Octa 7870 | MediaTek MT6739 |
| Process technology | 14 nm | 28 nm |
| CPU | 8x 1.6 GHz ARM Cortex-A53 | 4x 1.5 GHz ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A |
| CPU cores | 8 | 4 |
| CPU frequency | 1600 MHz | 1500 MHz |
| GPU | ARM Mali-T830 MP1 | IMG PowerVR GE8100 |
| GPU cores | 1 | - |
| GPU frequency | 700 MHz | 570 MHz |
| RAM capacity | 2 GB | 2 GB 3 GB |
| RAM type | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Single channel |
| RAM frequency | 933 MHz | 667 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB | 32 GB 64 GB |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | microSD microSDHC microSDXC |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | Super AMOLED | TFT |
| Diagonal size | 5.5 in 139.7 mm 13.97 cm | 6.5 in 165.1 mm 16.51 cm |
| Width | 2.7 in 68.49 mm 6.85 cm | 2.67 in 67.75 mm 6.78 cm |
| Height | 4.79 in 121.76 mm 12.18 cm | 5.93 in 150.56 mm 15.06 cm |
| Aspect ratio | 1.778:1 16:9 | 2.222:1 |
| Resolution | 720 x 1280 pixels | 720 x 1600 pixels |
| Pixel density | 267 ppi 104 ppcm | 270 ppi 106 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 72.56 % | 82.21 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch |
| - | Infinity-V Display |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Hall | Proximity Light Accelerometer |
Rear camera
The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor type | CMOS | CMOS |
| Sensor format | - | 1/3.1" |
| Pixel size | - | 1.12 µm 0.001120 mm |
| Aperture | f/1.9 | f/1.9 |
| Focal length and 35 mm equivalent | - | 28 mm *(35 mm / full frame) |
| Flash type | Dual LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode |
| - | Secondary rear camera - 2 MP (macro) Aperture size - f/2.4 (#3) Pixel size - 1.75 µm (#3) |
Front camera
Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.
| Aperture | f/1.9 | f/2 |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 2560 x 1920 pixels 4.92 MP |
| Video resolution | - | 1280 x 720 pixels 0.92 MP |
| Video FPS | - | 30 fps |
| Features | - | Face unlock |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece |
| - | Dolby Atmos |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes |
| RDS | - |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 802.11b 802.11g 802.11n Wi-Fi Hotspot |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.1 | 4.2 |
| Features | A2DP AVRCP DIP HFP HID HSP MAP OPP PAN PBAP | A2DP LE |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB |
| Version | 2.0 | 2.0 |
| Features | Charging Mass storage | Charging Mass storage |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering NFC ANT+ | Computer sync OTA sync Tethering VoLTE |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.
| Audio file formats/codecs | AAC AMR AMR-WB FLAC M4A MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV |
Video file formats/codecs
Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.
| Video file formats/codecs | 3GPP 3GPP2 AVI Flash Video MP4 WebM WMV Xvid | 3GPP 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 Xvid |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 3300 mAh | 5000 mAh |
| Type | Li-Ion | Li-Ion |
| 2G talk time | 23 h 1380 min 1 days | - |
| 2G stand-by time | 354 h 21240 min 14.8 days | - |
| 3G talk time | 23 h 1380 min 1 days | - |
| 3G stand-by time | 354 h 21240 min 14.8 days | - |
| Charger output power | - | 5 V / 1.5 A |
| Features | Removable | Non-removable |
Specific Absorption Rate (SAR)
The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.
| Head SAR (EU) | - | 0.645 W/kg |
| Body SAR (EU) | - | 1.707 W/kg |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | SAR (Specific Absorption Rate) Argentina: head - 0.63 W/kg; body - 1.09 W/kg |
| Samsung Galaxy J7 Metal | Samsung Galaxy A02 |