Samsung Galaxy A3 (2017) vs. Samsung Galaxy A7 (2018)

Phone Comparison, Reviews and Tests

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.

Phone Specifications Comparison

Samsung Galaxy A3 (2017) vs. Samsung Galaxy A7 (2018) Comparison Chart
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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