Comparison between:
- Samsung Galaxy J3 (2017)
- Samsung Galaxy A40
- Samsung Galaxy A41
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Samsung Galaxy J3 (2017) | Samsung Galaxy A40 | Samsung Galaxy A41 | |
 |  Prices |  | |
| Model alias | SM-J330FN J330FN | SM-A405FD A405FD SM-A405FN A405FN | SM-A415F/DSN SM-A415F/DSM SM-A415F SM-A415F/DS |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 70.3 mm 7.03 cm 0.231 ft 2.768 in | 69.2 mm 6.92 cm 0.227 ft 2.724 in | 69.8 mm 6.98 cm 0.229 ft 2.748 in |
| Height | 143.2 mm 14.32 cm 0.47 ft 5.638 in | 144.4 mm 14.44 cm 0.474 ft 5.685 in | 149.8 mm 14.98 cm 0.491 ft 5.898 in |
| Thickness | 8.2 mm 0.82 cm 0.027 ft 0.323 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in |
| Weight | 142 g 0.31 lbs 5.01 oz | 140 g 0.31 lbs 4.94 oz | 152 g 0.34 lbs 5.36 oz |
| Volume | 82.55 cm³ 5.01 in³ | 78.94 cm³ 4.79 in³ | 82.6 cm³ 5.02 in³ |
| Colors | Black Blue Gold | Black Blue White Coral | Prism Crush Black Prism Crush Blue Prism Crush White Prism Crush Red |
| Body materials | Aluminium alloy | Plastic | Plastic |
| Certification | - | - | IP65 IP68 |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Nano-SIM | Nano-SIM | Nano-SIM |
| Number of SIM cards | 1 | 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 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) |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 800 MHz (B19) UMTS 2100 MHz (B1) UMTS 1800 MHz (B9) |
| LTE | LTE 700 MHz Class 17 LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2600 MHz (B38) | LTE-TDD 2300 MHz (B40) LTE-TDD 2600 MHz (B38) LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz | LTE-FDD 700 MHz (B28) LTE-FDD 850 MHz (B19) LTE-FDD 2100 MHz (B1) LTE-FDD 1800 MHz (B9) LTE-FDD 1500 MHz (B21) |
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 12 | UMTS EDGE HSPA+ LTE Cat 6 |
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 7.0 Nougat Android 8.0 Oreo | Android 9.0 Pie Andriod 10 | Android 10 Android 12 |
| User interface (UI) | - | One UI | One UI 2.0 One UI 4.1 |
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 Quad 7570 | Samsung Exynos 7904 | MediaTek Helio P65 (MT6768) |
| Process technology | 14 nm | 14 nm | 12 nm |
| CPU | 4x 1.4 GHz ARM Cortex-A53 | 2x 1.8 GHz ARM Cortex-A73, 6x 1.6 GHz ARM Cortex-A53 | 2x 2.0 GHz ARM Cortex-A75, 6x 1.7 GHz ARM Cortex-A55 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8.2-A |
| CPU cores | 4 | 8 | 8 |
| CPU frequency | 1400 MHz | 1800 MHz | 2000 MHz |
| GPU | ARM Mali-T720 MP1 | ARM Mali-G71 MP2 | ARM Mali-G52 MP2 |
| GPU cores | 1 | 2 | 2 |
| GPU frequency | 700 MHz | 770 MHz | 820 MHz |
| RAM capacity | 2 GB | 4 GB | 4 GB |
| RAM type | LPDDR3 | LPDDR4 | LPDDR4X |
| RAM channels | Single channel | Double channel | Double channel |
| RAM frequency | 933 MHz | - | 1800 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB | 64 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 | 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 | PLS | Super AMOLED | Super AMOLED |
| Diagonal size | 5 in 127 mm 12.7 cm | 5.9 in 149.86 mm 14.99 cm | 6.1 in 154.94 mm 15.49 cm |
| Width | 2.45 in 62.26 mm 6.23 cm | 2.47 in 62.8 mm 6.28 cm | 2.5 in 63.58 mm 6.36 cm |
| Height | 4.36 in 110.69 mm 11.07 cm | 5.36 in 136.07 mm 13.61 cm | 5.56 in 141.29 mm 14.13 cm |
| Aspect ratio | 1.778:1 16:9 | 2.167:1 | 2.222:1 |
| Resolution | 720 x 1280 pixels | 1080 x 2340 pixels | 1080 x 2400 pixels |
| Pixel density | 294 ppi 115 ppcm | 437 ppi 171 ppcm | 431 ppi 169 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 68.68 % | 85.79 % | 86.2 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch |
| - | 370 cd/m² Always-On Display HDR10 | Infinity-U Display Always-On Display HDR10 |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Gyroscope | Proximity Light Accelerometer Compass Gyroscope Fingerprint Hall | Proximity Light Accelerometer Compass Gyroscope Fingerprint Hall |
| - | - | In-display fingerprint sensor |
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 | CMOS |
| Aperture | f/1.9 | f/1.7 | f/2 |
| Focal length and 35 mm equivalent | - | 3.92 mm 26 mm *(35 mm / full frame) | 3.92 mm 26 mm *(35 mm / full frame) |
| Flash type | LED | LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4608 x 3456 pixels 15.93 MP | 8000 x 6000 pixels 48 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom 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 | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| - | Secondary rear camera - 5 MP (ultra-wide angle) Aperture size - f/2.2 (#2) Angle of view - 123° (#2) | Secondary rear camera - 5 MP (depth-sensing) Aperture size - f/2.4 (#2) Third rear camera - 8 MP (ultra-wide-angle) Aperture size - f/2.2 (#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/2.2 | f/2 | f/2.2 |
| Focal length and 35 mm equivalent | - | 3.75 mm | 3.75 mm |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 5760 x 4312 pixels 24.84 MP | 5760 x 4312 pixels 24.84 MP |
| Video resolution | - | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | - | 30 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 | Loudspeaker Earpiece |
| HAC (M3/T3) - Hearing Aid Compatibility | - | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS BeiDou Galileo | GPS A-GPS |
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 | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.2 | 5.0 | 5.0 |
| Features | A2DP AVRCP EDR HDP HFP HID MAP OPP PBAP SPP | A2DP AVRCP DIP HFP HID HSP MAP OPP PAN PBAP HOGP | A2DP AVRCP DIP HFP HID HSP MAP OPP PAN PBAP HOGP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | USB Type-C | USB Type-C |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go |
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 | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering NFC VoLTE ANT+ | Computer sync OTA sync Tethering NFC VoLTE ANT+ |
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 | 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 eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ 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 AVI H.263 H.264 MKV MP4 WMV | 3GPP 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 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 | 2400 mAh | 3100 mAh | 3500 mAh |
| Type | Li-Ion | Li-Polymer | Li-Polymer |
| 2G talk time | 15 h 900 min 0.6 days | 18 h 1080 min 0.8 days | - |
| 3G talk time | 15 h 900 min 0.6 days | 18 h 1080 min 0.8 days | - |
| Charger output power | - | 5 V / 2 A 9 V / 1.67 A | 5 V / 2 A 9 V / 1.67 A |
| Features | Non-removable | Fast charging Non-removable | Fast charging 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) | 0.658 W/kg | 0.49 W/kg | - |
| Body SAR (EU) | 1.32 W/kg | 1.34 W/kg | 0.587 W/kg |
| Head SAR (India) | - | - | 1.5 W/kg |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | - | NTT DoCoMo Japan edition |
| Samsung Galaxy J3 (2017) | Samsung Galaxy A40 | Samsung Galaxy A41 |