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Samsung Galaxy Watch (42mm SM-R815U) vs Realme Watch

Side by side comparison between Samsung Galaxy Watch vs Realme Watch smartwatches, differences, pros, cons with full specifications. What's the better?

Compare Realme Watch XSamsung Galaxy Watch (42mm SM-R815U)17Points
Samsung Galaxy Watch (42mm SM-R815U)




64bit Dual


(Non removable)

Realme Watch




32bit Single


(Non removable)

What's the better smartwatch? Samsung Galaxy Watch (42mm SM-R815U)

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!

Galaxy Watch (42mm SM-R815U)17 Advantages Samsung Galaxy Watch (42mm SM-R815U)vsWatch7 Advantages Realme Watch
+Stainless steel body, glass frontAdvantage
More resistant material
vsPlastic body, glass front
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
+360x360 pixels27%
Higher resolution screen
vs320x320 pixels
+424 PPI31%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs323 PPI
+1500 apps149 times
More apps available to download and use
vs10 apps
+4G LTEAdvantage
The 4G LTE network is newer and faster
vsNot supported
+(4G LTE) 10 MbpsAdvantage
Faster for surfing the internet and download files
vs(Not supported)
+Ambient Light sensorAdvantage
Sensors help you use the device
vsNot supported
Sensors help you use the device
vsNot supported
Sensors help you use the device
vsNot supported
Sensors help you use the device
vsNot supported
+270 mAh69%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs160 mAh
Speakerphone is useful when you are driving and on other occasions
vsNot supported
+A-GPS, GeoTagging, GLONASSAdvantage
It's harder to lose yourself in the city with GPS on your device
vsNot supported
+802.11 b/g/n (2.4Ghz)Advantage
WiFi 802.11 b/g/n (2.4Ghz) is newer and faster
vsNot supported
NFC allows you to make payments by approach quickly and securely
vsNot supported
+50 meters waterproof., MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsIP68 certified
eMMCvs+eMMC 4.5Advantage
Fastest write and read storage.
49 grams (1.72 ounces)vs+31 grams (1.09 ounces)58%
12.7 millimeters (0.5 inches)vs+11.8 millimeters (0.46 inches)8%
Larger screen
Not supportedvs+SpO2Advantage
Sensors help you use the device
4.2 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
Not supportedvs+HTML, XHTML, HTML5Advantage
Better sites viewing on the internet

11 Common items in both devices
4GB (1.5GB available) / Not supported
16 million
Not supported
Heart rate
+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 differencesClear highlight
Physical featuresSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
ModelGalaxy Watch (42mm SM-R815U)Watch
Other model namesGalaxy Watch 42mm (4G LTE) SM-R815UZDAXAR, Samsung GalileoRealme Watch (RMA161)
Country or region availableUSA
(Global, International)
(Global, International)
Release dateAugust, 2018June, 2020
Depth12.7 millimeters (0.5 inches)11.8 millimeters (0.46 inches)
Size (width x height)41.9 x 45.7 millimeters (1.65 x 1.8 in)25.6 x 36.5 millimeters (1.01 x 1.44 in)
Weight49 grams (1.72 ounces)31 grams (1.09 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaNot supported
Build, materialsStainless steel body, glass frontPlastic body, glass front
Protection against water and others50 meters waterproof.
MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
IP68 certified: dust proof and waterproof over 1.5 meter and 30min
System (OS)Samsung Galaxy Watch (42mm SM-R815U)Realme Watch
Operating systemTizen 4.0Proprietary OS
Firmware updatefeature not registeredfeature not registered
HardwareSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
Chipset64bit - Samsung Exynos 9 Dual 9110 (10nm)32bit
CPU processor1.15Ghz Dual-Core ARM Cortex-A53Single-Core
GPU graphical controllerARM Mali-T720 MP1feature not registered
RAM memory1.5GB LPDDR3feature not registered
Internal storage4GB (1.5GB available)
Not supported
External storageNot supportedNot supported
DisplaySamsung Galaxy Watch (42mm SM-R815U)Realme Watch
Display typeSuper AMOLEDTFT IPS LCD
Screen size1.2" inches1.4" inches
Screen-to-body ratio~24.3% (screen-to-body ratio)~67.7% (screen-to-body ratio)
Display resolution360x360 pixels (1:1)320x320 pixels (1:1)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)424 PPI323 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass DX+Gorilla Glass 3
Display featuresNot supported60Hz, 380 nits
Mobile networksSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
e-SIM (Eletronic)
Not supported
Maximum download/upload10 Mbpsfeature not registered
Network technology3G, 4Gfeature not registered
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandNot supportedNot supported
Primary 2G networkNot supportedNot supported
Primary 3G networkUMTS 850/1700/1900Not supported
Primary 4G networkLTE (Bands 2,4,5,12,13,25,26,66)Not supported
Primary 5G networkNot supportedNot supported
Primary data networkUMTS, HSDPA, HSUPA, HSPA+, LTENot supported
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
MessagingSMS (T9), MMS, E-mail, Push mailSMS, E-mail
SpeakerphoneSupportedNot supported
Video callingNot supportedNot supported
Call controlVoice dialing, Voice recorder, Voice commandsNot supported
CameraSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
Back camera (main camera)Not supportedNot supported
Main camera resolutionNot supportedNot supported
Video recording (primary)Not supportedNot supported
FlashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusNot supportedNot supported
Touch focusNot supportedNot supported
Image stabilizationNot supportedNot supported
ZoomNot supportedNot supported
Face/smile detectionNot supportedNot supported
BSI sensorNot supportedNot supported
HDRNot supportedNot supported
2ª cameraSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
Front camera (secondary)Not supportedNot supported
Front camera resolutionNot supportedNot supported
Video recording (secondary)Not supportedNot supported
Front flashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
MultimediaSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4MP3
Audio formatsMP3, WAV, WMA, OGG, eAAC+MP3, eAAC+
ConnectivitySamsung Galaxy Watch (42mm SM-R815U)Realme Watch
USBNot supportedNot supported
TV outputNot supportedNot supported
Audio outputNot supportedNot supported
Bluetooth4.2 + A2DP5.0 + A2DP/LE
WiFi802.11 b/g/n (2.4Ghz)Not supported
DLNANot supportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTagging, GLONASSNot supported
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
Active noise cancellationNot supportedNot supported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedfeature not registered
Web browserNot supportedHTML, XHTML, HTML5
Ambient Light sensor
Heart rate
Heart rate
Other features- 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 Sprint, T-Mobile and Verizon carriers
- Colors: Black
- Silicon straps colors: black, red, blue, green
- Straps compatible: 20mm
- Smart notifications
- Watch Faces
- 14 Sports Modes
Power supplySamsung Galaxy Watch (42mm SM-R815U)Realme Watch
BatteryLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity270 mAh160 mAh
Charger, watts3.5W (5V/0.7A) Standard charging
Qi wireless charging
Standard charging
Magnetic charging (dock)
Talk time autonomyfeature not registeredfeature not registered
Standby4320 minutes | 72 hours | 3 daysfeature not registered
Radiation rateSamsung Galaxy Watch (42mm SM-R815U)Realme Watch
SAR 1.6W/kg (USA, Mexico, etc.)0.961W/kg (head) | 1.786W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered

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