Samsung Galaxy Watch (42mm SM-R815N) vs Samsung Galaxy J2 Pro 2018 (SM-J250M/DS)

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Side by side comparison between Samsung Galaxy Watch vs Samsung Galaxy J2 Pro (2018) devices, differences, pros, cons and full specifications. What's the better?

11/6/2018 8:11 PM, updated: 9/27/2024 3:50 AM

Compare Samsung Galaxy J2 Pro (2018) X Samsung Galaxy Watch (42mm SM-R815N) 10Points

Specifications Compare Models Pictures

1.2"
AMOLED

360x360

N/A

1.5GB
RAM

Dual-core

270
mAh

(Non removable)

19Points Samsung Galaxy J2 Pro 2018 (SM-J250M/DS) Compare Samsung Galaxy Watch X

Specifications Compare Models Pictures

5"
AMOLED

540x960

8
MP

5mp

1.5GB
RAM

Quad-core

2600
mAh

(Removable)

What's the better device? Samsung Galaxy J2 Pro 2018 (SM-J250M/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!

10 Advantages Samsung Galaxy Watch (42mm SM-R815N)	vs	19 Advantages Samsung Galaxy J2 Pro 2018 (SM-J250M/DS)
+1.5GB LPDDR4Advantage This RAM type is better and more efficient.	vs	1.5GB LPDDR3
+49 grams (1.72 ounces)2 times Lighter	vs	153 grams (5.36 ounces)
+Stainless steel body, glass frontAdvantage More resistant material	vs	Aluminum body, glass front, plastic back
+424 PPI93% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	220 PPI
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage 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
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	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 (10nm)	vs	+1.4GHz 64bit Quad-core (28nm)51% More powerful processor, you can open your applications faster
4GB (1.5GB available)	vs	+16GB (10GB available)6 times More internal storage for applications and files
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
12.7 millimeters (0.5 inches)	vs	+8.4 millimeters (0.33 inches)51% Thinner
360x360 pixels	vs	+540x960 pixels3 times Higher resolution screen
1.2"	vs	+5"3 times Larger screen
Not supported	vs	+(back) 8MPAdvantage 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) 150 Mbps14 times Faster for surfing the internet and download files
Not supported	vs	+Proximity sensorAdvantage Sensors help you use the device
270 mAh	vs	+2600 mAh9 times Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Li-Ion: lithium-ion (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Not supported	vs	+Video callingAdvantage The video calling allows to make calls with voice and video
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
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

14 Common items in both devices

eMMC 5.1

Super AMOLED

16 million

4G LTE

Capacitive

Multitouch

Accelerometer

+7 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 J2 Pro 2018 (SM-J250M/DS)
Change model		Choose the model
Model	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Other model names	갤럭시 워치 42mm (4G LTE) SM-R815NZKASKC, Samsung Galileo	Galaxy J2 Pro J250M/Dual-Sim
Country or region available	South Korea	(Latin America), Brazil
Brand	Samsung	Samsung
Release date	8/9/2018	1/1/2018
Depth	12.7 millimeters (0.5 inches)	8.4 millimeters (0.33 inches)
Size (width x height)	41.9 x 45.7 millimeters (1.65 x 1.8 in)	72.3 x 143.8 millimeters (2.85 x 5.66 in)
Weight	49 grams (1.72 ounces)	153 grams (5.36 ounces)
Build, materials	Stainless steel body, glass front	Aluminum body, glass front, plastic back
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 J2 Pro 2018 (SM-J250M/DS)
Display type	Super AMOLED	Super AMOLED
Screen size	1.2" inches	5" inches
Screen-to-body ratio	~24.3% (screen-to-body ratio)	~66.3% (screen-to-body ratio)
Display resolution	360x360 pixels (1:1)	540x960 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	424 PPI	220 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass DX+	Gorilla Glass 3
Refresh rate	feature not registered	feature not registered
Display features	Not supported	feature not registered
🤖 Operating System
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
System version	Tizen 4.0	Android 7.1.1 Nougat
Firmware update	feature not registered	Android 8.0 Oreo
User Interface	feature not registered	feature not registered
⚙️ Processor
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Chipset	64bit: Samsung Exynos 9110 (10nm)	64bit: Qualcomm Snapdragon 425 (MSM8917) (28nm)
CPU	Dual-core, 1 processor: 2x 1.15GHz ARM Cortex-A53 (Dual-core)	Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-T720 MP1 (667MHz)	Qualcomm Adreno 308 (500MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
RAM memory	1.5GB LPDDR4	1.5GB LPDDR3
Internal storage	4GB (1.5GB available) eMMC 5.1	16GB (10GB available) eMMC 5.1
External storage	Not supported	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/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) micro-SIM (3FF)
Maximum Download / Upload	10 Mbps	150/50 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 850/900/1700/1900/2100
Primary 4G network	LTE (Bands 1,3,5,7,8)	LTE Cat4 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66)
Primary 5G network	Not supported	Not supported
Primary data network	UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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 J2 Pro 2018 (SM-J250M/DS)
Back camera (main camera)	Not supported	8 megapixels
Main camera resolution	Not supported	3264x2448 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/2.2 (aperture)
Focal length	feature not registered	feature not registered
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 only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Front camera (secondary)	Not supported	5 megapixels
Front camera resolution	Not supported	2560x1920 pixels
Video recording (secondary)	Not supported	HD (1280x720)
Front flash	Not supported	LED
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
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 J2 Pro 2018 (SM-J250M/DS)
Loudspeaker	Supported	Supported
Active noise cancellation	1 microphone	Not supported
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, OGG, eAAC+	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/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	4.2 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Sensors	Accelerometer Ambient light sensor Barometer Gyroscope Heart rate Pedometer	Accelerometer Ambient light sensor Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	270 mAh	2600 mAh
Charger, watts	3.5W (5V/7A) Wired charging	Wired charging
Inductive / wireless charging	Qi wireless charging	feature not registered
Talk time autonomy	feature not registered	18 hours
Standby	72 hours (3 days)	feature not registered
➕ Other features
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/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
☢️ Radiation rate
	Galaxy Watch (42mm SM-R815N)	Galaxy J2 Pro 2018 (SM-J250M/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	0.641W/kg (head), 1.67W/kg (body)	0.97W/kg (head), 0.56W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered