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Samsung Galaxy Watch (42mm SM-R815U) All specs

Full specifications smartwatch: Samsung Galaxy Watch (42mm SM-R815U) specs, detailed technical information, features, price and review. All about this smartwatch.

Samsung Galaxy Watch

Samsung Galaxy Watch (42mm SM-R815U)

6.7/10 💬 Comment

Tizen smartwatch with 1.15GHz Dual-core median processor provides good performance when performing some functions of the Samsung Galaxy Watch (42mm SM-R815U)

With one SIM card slot, the Samsung Galaxy Watch (42mm SM-R815U) allows download up to 10 Mbps for internet browsing, but it also depends on the carrier.

Great connectivity of this device includes Bluetooth 4.2 + A2DP, WiFi 802.11 b/g/n [wifi4] (2.4GHz) and NFC to make mobile payments or connection to other devices.

Device with 49 grams including the battery. The Samsung Galaxy Watch (42mm SM-R815U) smartwatch is relatively thin with 12.7mm thickness.


*depends on the model
⚙️ CPU: Samsung Exynos 9 Dual 9110 (10nm)
🤖 Tizen 4.0
📱 1.2" / 1.3"*
🔳 RAM: 768MB / 1.5GB*
💽 ROM: 4GB
🔌 WIFI4, BT4.2, NFC
📷 Not supported
 🔋 270mAh / 472mAh*
⚡ 3.5W

📱 Model features

Galaxy Watch (42mm SM-R815U)
ModelGalaxy Watch (42mm SM-R815U)
Other model namesGalaxy Watch 42mm (4G LTE) SM-R815UZDAXAR, Samsung Galileo
Country or region availableUSA
Release date8/1/2018
Depth12.7 millimeters (0.5 inches)
Size (width x height)41.9 x 45.7 millimeters (1.65 x 1.8 in)
Weight49 grams (1.72 ounces)
Build, materialsStainless steel body, glass front
Protection against water and others5 ATM: 50 meters waterproof.
MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.

📲 Display

Galaxy Watch (42mm SM-R815U)
Display typeSuper AMOLED
Screen size1.2" inches
Screen-to-body ratio~24.3% (screen-to-body ratio)
Display resolution360x360 pixels (1:1)
TouchscreenCapacitive Multitouch
Pixel density (dot pitch)424 PPI
Colors16 million
Scratch-resistant glassGorilla Glass DX+
Refresh ratefeature not registered
Display featuresNot supported

🤖 Operating System

Galaxy Watch (42mm SM-R815U)
System versionTizen 4.0
Firmware updatefeature not registered
User Interfacefeature not registered

⚙️ Processor

Galaxy Watch (42mm SM-R815U)
Chipset64bit: Samsung Exynos 9 Dual 9110 (10nm)
CPUDual-core, 1 processor:
2x 1.15GHz ARM Cortex-A53 (Dual-core)
GPU graphical controllerARM Mali-T720 MP1
Performance (benchmark)feature not registered

💽 Memory and storage

Galaxy Watch (42mm SM-R815U)
RAM memory1.5GB LPDDR3
Internal storage4GB (1.5GB available)
External storageNot supported

📶 Mobile networks

Galaxy Watch (42mm SM-R815U)
Dual-SIMNot supported
SIM card1 slot (Single-SIM)
e-SIM (Eletronic)
Maximum Download / Upload10 Mbps
Network technology3G, 4G
Frequency, bands Expand band details Collapse details
GSM MHz bandNot supported
Primary 2G networkNot supported
Primary 3G networkUMTS 850/1700/1900
Primary 4G networkLTE (Bands 2,4,5,12,13,25,26,66)
Primary 5G networkNot supported
Primary data networkUMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G networkNot supported
Secondary 3G networkNot supported
Secondary 4G networkNot supported
Secondary data networkNot supported

📷 Camera

Galaxy Watch (42mm SM-R815U)
Back camera (main camera)Not supported
Main camera resolutionNot supported
Video recording (primary)Not supported
FlashNot supported
Focal aperturefeature not registered
Focal lengthfeature not registered
Sensor sizefeature not registered
Pixel sizefeature not registered
AutofocusNot supported
Touch focusNot supported
Image stabilizationNot supported
ZoomNot supported
Face/smile detectionNot supported
BSI sensorNot supported
HDRNot supported
Camera extrasfeature not registered

📸 Front camera

Galaxy Watch (42mm SM-R815U)
Front camera (secondary)Not supported
Front camera resolutionNot supported
Video recording (secondary)Not supported
Front flashNot supported
Focal aperturefeature not registered
Focal lengthfeature not registered
Sensor sizefeature not registered
Pixel sizefeature not registered

🔉 Sound and multimedia

Galaxy Watch (42mm SM-R815U)
Active noise cancellationNot supported
RadioNot supported
TVNot supported
Video formatsMP4
Audio formatsMP3, WAV, WMA, OGG, eAAC+

🔌 Connectivity

Galaxy Watch (42mm SM-R815U)
USBNot supported
Audio outputNot supported
TV outputNot supported
Bluetooth4.2 + A2DP
WiFi802.11 b/g/n [wifi4] (2.4GHz)
DLNANot supported
Infrared portNot supported

🧭 Sensors

Galaxy Watch (42mm SM-R815U)
Ambient light sensor
Heart rate
Vibrating alertSupported

🔋 Battery

Galaxy Watch (42mm SM-R815U)
Battery typeLi-Ion: lithium-ion (Non removable)
Battery capacity270 mAh
Charger, watts3.5W (5V/0.7A) Wired charging
Inductive / wireless chargingQi wireless charging
Talk time autonomyfeature not registered
Standby72 hours (3 days)

➕ Other features

Galaxy Watch (42mm SM-R815U)
Call controlVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupported
Video callingNot supported
RingtonesPolyphonic and customized
Web browserNot supported
AntennaInternal antenna
Qwerty physical keyboardNot 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 Sprint, T-Mobile and Verizon carriers

☢️ Radiation rate

Galaxy Watch (42mm SM-R815U)
SAR 1.6W/kg (USA, Mexico, etc.)0.961W/kg (head), 1.786W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered

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