Samsung Galaxy Watch (42mm SM-R815N) vs Samsung Galaxy J7 2017 (SM-J730FM/DS)

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Side by side comparison between Samsung Galaxy Watch vs Samsung Galaxy J7 (2017) devices, differences, pros, cons and full specifications. What's the better?

11/6/2018 8:11 PM, updated: 12/13/2020 9:53 AM

Compare Samsung Galaxy J7 (2017) X Samsung Galaxy Watch (42mm SM-R815N) 09Points

Specifications Compare Models Pictures

1.2"
AMOLED

360x360

N/A

1.5GB
RAM

Dual-core

270
mAh

(Non removable)

22Points Samsung Galaxy J7 2017 (SM-J730FM/DS) Compare Samsung Galaxy Watch X

Specifications Compare Models Pictures

5.5"
AMOLED

1080x1920

13
MP

13mp

3GB
RAM

Octa-core

3600
mAh

(Non removable)

What's the better device? Samsung Galaxy J7 2017 (SM-J730FM/DS)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

9 Advantages Samsung Galaxy Watch (42mm SM-R815N)	vs	22 Advantages Samsung Galaxy J7 2017 (SM-J730FM/DS)
+49 grams (1.72 ounces)3 times Lighter	vs	181 grams (6.34 ounces)
+Stainless steel body, glass frontAdvantage More resistant material	vs	Aluminum body, glass front
+424 PPI6% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	401 PPI
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Heart rateAdvantage Sensors help you use the device	vs	Not supported
+PedometerAdvantage Sensors help you use the device	vs	Not supported
+4.2 + A2DPAdvantage Bluetooth 4.2 + A2DP is newer and faster	vs	4.1 + A2DP
+Gorilla Glass DX+Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
+5 ATM, MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
1.15GHz 64bit Dual-core	vs	+1.6GHz 64bit Octa-core (14nm)85% More powerful processor, you can open your applications faster
1.5GB LPDDR3	vs	+3GB LPDDR3100% More RAM memory. Typically more responsive and better for multitasking.
4GB (1.5GB available)	vs	+16GB (10GB available)6 times More internal storage for applications and files
eMMC	vs	+eMMC 5.1Advantage Fastest write and read storage.
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
12.7 millimeters (0.5 inches)	vs	+8 millimeters (0.31 inches)59% Thinner
360x360 pixels	vs	+1080x1920 pixels15 times Higher resolution screen
1.2"	vs	+5.5"4 times Larger screen
Not supported	vs	+(back) 13MPAdvantage With a camera you can take pictures anywhere
Not supported	vs	+Full HD (1920x1080)Advantage More image quality for recording videos with the primary camera
1500 apps	vs	+3500000 apps (Google Play Store)2332 times More apps available to download and use
(4G LTE) 10 Mbps	vs	+(4G LTE) 300 Mbps29 times Faster for surfing the internet and download files
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (front-mounted)Advantage Sensors help you use the device
Not supported	vs	+Proximity sensorAdvantage Sensors help you use the device
270 mAh	vs	+3600 mAh12 times Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
Not supported	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
Not supported	vs	+MicroUSB 2.0, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
Not supported	vs	+HTML, XHTML, HTML5Advantage Better sites viewing on the internet

11 Common items in both devices

Super AMOLED

16 million

4G LTE

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+4 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Change model		Choose the model
Model	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Other model names	갤럭시 워치 42mm (4G LTE) SM-R815NZKASKC, Samsung Galileo	Galaxy J7 2017 J730FM/Dual-Sim (Galaxy J7 Pro)
Country or region available	South Korea	Kazakhstan, United Arab Emirates, Russia
Brand	Samsung	Samsung
Release date	8/1/2018	7/1/2017
Depth	12.7 millimeters (0.5 inches)	8 millimeters (0.31 inches)
Size (width x height)	41.9 x 45.7 millimeters (1.65 x 1.8 in)	74.8 x 152.5 millimeters (2.94 x 6 in)
Weight	49 grams (1.72 ounces)	181 grams (6.34 ounces)
Build, materials	Stainless steel body, glass front	Aluminum body, glass front
Protection against water and others	5 ATM: 50 meters waterproof. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.	Not supported
📲 Display
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Display type	Super AMOLED	Super AMOLED
Screen size	1.2" inches	5.5" inches
Screen-to-body ratio	~24.3% (screen-to-body ratio)	~73.1% (screen-to-body ratio)
Display resolution	360x360 pixels (1:1)	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	424 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass DX+	Not supported
Refresh rate	feature not registered	feature not registered
Display features	Not supported	feature not registered
🤖 Operating System
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
System version	Tizen 4.0	Android 7.1 Nougat
Firmware update	feature not registered	Android 9.0 Pie
User Interface	feature not registered	feature not registered
⚙️ Processor
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Chipset	64bit: Samsung Exynos 9 Dual 9110 (10nm)	64bit: Samsung Exynos 7870 (14nm)
CPU	Dual-core, 1 processor: 2x 1.15GHz ARM Cortex-A53 (Dual-core)	Octa-core, 1 processor: 8x 1.6GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	ARM Mali-T720 MP1	ARM Mali-T830 MP1 (700MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
RAM memory	1.5GB LPDDR3	3GB LPDDR3
Internal storage	4GB (1.5GB available) eMMC	16GB (10GB available) eMMC 5.1
External storage	Not supported	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) e-SIM (Eletronic)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	10 Mbps	300/50 Mbps
Network technology	3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Not supported	Quad-Band 850/900/1800/1900
Primary 2G network	Not supported	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE (Bands 1,3,5,7,8)	LTE Cat6 800/850/900/1800/2100/2600 (Bands 1,3,5,7,8,20) TD-LTE 2300 (Bands 40)
Primary 5G network	Not supported	Not supported
Primary data network	UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE
📷 Camera
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Back camera (main camera)	Not supported	13 megapixels
Main camera resolution	Not supported	4128x3096 pixels
Video recording (primary)	Not supported	Full HD (1920x1080) 30 fps
Flash	Not supported	LED flash on both cameras
Focal aperture	feature not registered	f/1.7 (aperture)
Focal length	feature not registered	27mm lens
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	Not supported	Autofocus
Touch focus	Not supported	Supported
Image stabilization	Not supported	EIS: Digital stabilization
Zoom	Not supported	Only digital zoom
Face/smile detection	Not supported	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	Not supported	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Front camera (secondary)	Not supported	13 megapixels
Front camera resolution	Not supported	4128x3096 pixels
Video recording (secondary)	Not supported	Full HD (1920x1080)
Front flash	Not supported	LED
Focal aperture	feature not registered	f/1.9 (aperture)
Focal length	feature not registered	28mm lens
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Loudspeaker	Supported	Supported
Active noise cancellation	Not supported	Not supported
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4	MP4, H.265, H.264, H.263, MKV, WMV
Audio formats	MP3, WAV, WMA, OGG, eAAC+	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
USB	Not supported	MicroUSB 2.0, USB OTG On-The-Go
Audio output	Not supported	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	4.1 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Sensors	Accelerometer Ambient light sensor Barometer Gyroscope Heart rate Pedometer	Accelerometer Ambient light sensor Compass Fingerprint sensor (front-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	270 mAh	3600 mAh
Charger, watts	3.5W (5V/0.7A) Wired charging	Wired charging
Inductive / wireless charging	Qi wireless charging	feature not registered
Talk time autonomy	feature not registered	24 hours (1 day)
Standby	72 hours (3 days)	feature not registered
➕ Other features
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Not supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	Not supported	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Midnight Black, Rose Gold • Straps: Black, Grey, Red, Yellow, Purple, Pink, Brown • Compatible with standard 20mm straps • Always-on display • Rotating bezel • Samsung Pay • Compatible with KT, LG U+, SKT carriers in Korea	• Colors: Black, Gold, Blue, Pink • 2.5D glass screen • Always on Display
☢️ Radiation rate
	Galaxy Watch (42mm SM-R815N)	Galaxy J7 2017 (SM-J730FM/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	0.641W/kg (head), 1.67W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.567W/kg (head), 1.33W/kg (body)