In depth comparison and review of Samsung Galaxy A3 (2017) and Samsung Galaxy A7 (2018). Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A320F | SM-A750FN/DS | |
| Form Factor | Touch | Touch | |
| Height | 135.4 mm | 159.8 mm | Samsung Galaxy A7 (2018) has greater height than Samsung Galaxy A3 (2017). |
| Width | 66.2 mm | 76.8 mm | Samsung Galaxy A7 (2018) has greater width than Samsung Galaxy A3 (2017). |
| Depth | 7.9 mm | 7.5 mm | Samsung Galaxy A7 (2018) is narrower than Samsung Galaxy A3 (2017). |
| Weight | 138 g | 168 g | Samsung Galaxy A3 (2017) is lighter than Samsung Galaxy A3 (2017). |
| Body Colour | Sand gold | Blue mist | Blue-mist | Gold-sand | Black-sky | Peach-cloud | Gold | Blue | Black | |
| Body Material | Metal, glass | - | |
| Protection | Dustproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy A3 (2017) is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.38 W/kg (body), 0.349 W/kg (head) | 1.425 W/kg (body), 0.335 W/kg (head) | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | HD Super AMOLED | Super AMOLED | |
| Screen Size (Display Size) | 4.7" | 6" | Samsung Galaxy A7 (2018) has larger screen size than Samsung Galaxy A3 (2017). |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2220 x 1080 pixels | Samsung Galaxy A7 (2018) has better screen resolution than Samsung Galaxy A3 (2017). |
| Display Format | HD | Full HD+ | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | Always-on display | Always-on display, 2.5D Glass |
| PROCESSOR | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Clock Speed | 1.6 GHz | 2.2 GHz | Samsung Galaxy A7 (2018) has higher clock speed than Samsung Galaxy A3 (2017). |
|---|---|---|---|
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| MEMORY | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| RAM | 2 GB | 4 GB | Samsung Galaxy A7 (2018) has more RAM than Samsung Galaxy A3 (2017). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Samsung Galaxy A7 (2018) has more internal memory than Samsung Galaxy A3 (2017). |
| User Memory | 9.7 GB | 50.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 24 Megapixel | Samsung Galaxy A7 (2018) has better camera resolution than Samsung Galaxy A3 (2017). |
| Sensor Type | CMOS | - | |
| Lens Aperture | F/1.9 | F/1.7 | Samsung Galaxy A7 (2018) has better lens aperture than Samsung Galaxy A3 (2017). |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | Food mode | - | |
| Light Source | LED light | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Quick Launch | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.2 | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 24 Megapixel | Samsung Galaxy A7 (2018) has better front camera resolution than Samsung Galaxy A3 (2017). |
| Sensor Type (Front) | CMOS | - | |
| Lens Aperture (Front) | F/1.9 | F/2.0 | Samsung Galaxy A3 (2017) has better front lens aperture than Samsung Galaxy A3 (2017). |
| Light Source (Front) | - | Flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps |
| BATTERY AND CHARGING | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Battery Capacity (Battery Size) | 2350 mAh | 3300 mAh | Samsung Galaxy A7 (2018) has larger battery capacity than Samsung Galaxy A3 (2017). |
|---|---|---|---|
| Talk Time | 1020 minutes | 1140 minutes | Samsung Galaxy A7 (2018) has longer battery life when making calls than Samsung Galaxy A3 (2017). |
| Run Time Details | Talk (3G): up to 1020 min Active online usage (3G): up to 12 hrs Active online usage (LTE): up to 16 hrs Active online usage (Wi-Fi): up to 17 hrs Playback (video): up to 17 hrs Playback (Music): up to 41 hrs Playback (audio (Always On Display Off)): up to 55 hrs |
Talk (WCDMA): up to 1140 min Active online usage (WCDMA): up to 13 hrs Active online usage (LTE): up to 14 hrs Active online usage (Wi-Fi): up to 14 hrs Playback (video): up to 17 hrs Playback (audio): up to 48 hrs Playback (audio (Always On Display Off)): up to 74 hrs |
| CELLULAR | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0.1 (Marshmallow) | Google Android | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS | GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20, Band 40 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2300 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT | IEEE 802.11a/b/g/n/ac, ANT+/ANT | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, PBAP, MAP, DIP, HOGP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, Ogg Vorbis, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, OGG, eAAC+, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID, AMR-WB, AMR-NB | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, FLV, AVI, MPEG-4, WMV, ASF, 3GP, H.264, H.263, M4V, WebM, HEVC, MP43, 3G2, WMV8, VP8, VP9, H.265 | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 |
| FEATURES | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | S-Voice, Samsung KNOX | - |
| OTHERS | Samsung Galaxy A3 (2017) | Samsung Galaxy A7 (2018) |
|---|
| Included Accessories | Power adapter | Power adapter | |
|---|---|---|---|
| Compliant Standards | IP68 | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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