Samsung galaxy watch 3 full specs

Samsung Galaxy Watch 3 (45mm/41mm) Full Specifications and Features Review

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Last Updated on September 6, 2020 by Jude Simeone

Samsung Galaxy Watch 3 has been announced and is set to start shipping from 21st August. Although Samsung had released Galaxy Watch Active and subsequently Galaxy Watch Active 2, but the Galaxy Watch 3 is the successor to Galaxy Watch that was released in 2018. It sure comes with a lot of new additions which certainly makes it the best Samsung smartwatch yet. Galaxy Watch 3 is slimmer, more compact, and weighs less than it’s predecessor. As well as adds more fitness tracking and productive features – Samsung is marketing the Galaxy Watch 3 as a lifestyle and fitness device in one. I bring you the full specifications and features of Samsung Galaxy Watch 3.

Samsung Galaxy Watch 3 41mm/45mm Full Specifications

Samsung Galaxy Watch 3 (45mm)Samsung Galaxy Watch 3 (41mm)
Samsung galaxy watch 3 (45mm) full specsSamsung galaxy watch 3 (41mm) full specs


4.9 out of 5 stars (4.9 / 5)
3.5 out of 5 stars (3.5 / 5)
Fitness tracking:
4.8 out of 5 stars (4.8 / 5)
4.8 out of 5 stars (4.8 / 5)
4 out of 5 stars (4.0 / 5)
4.4 out of 5 stars (4.4 / 5)
4.9 out of 5 stars (4.9 / 5)
3.5 out of 5 stars (3.5 / 5)
Fitness tracking:
4.8 out of 5 stars (4.8 / 5)
4.8 out of 5 stars (4.8 / 5)
4 out of 5 stars (4.0 / 5)
4.4 out of 5 stars (4.4 / 5)


<strong>Buy at Amazon</strong>Buy at Amazon<strong>Buy at Amazon</strong>Buy at Amazon


Device nameSamsung Galaxy Watch 3 (45mm) BluetoothSamsung Galaxy Watch 3 (41mm) Bluetooth
Device typeClassic/Fitness smartwatchClassic/Fitness smartwatch
PredessesorSamsung Galaxy WatchSamsung Galaxy Watch
Released dateAugust, 2020August, 2020
Ideal forMenWomen


Display typeSuper AMOLED
Full color
Full color
Display size1.4 inches1.2 inches
Display resolution360 x 360 pixels360 x 360 pixels
Pixel density346 ppi346 ppi
Input typeTouchscreen,
2 physical buttons
physical rotating bezel
2 physical buttons
physical rotating bezel
Customizable watch faceYesYes


Dimension46.2 x 45 x 11.1 mm42.5 x 41 x 11.3 mm
Weight53.8 grams
(excluding straps)
48.2 grams
(excluding straps)
Casing materialStainless steel frame/glass reinforced with polycarbonate backStainless steel frame/glass reinforced with polycarbonate back
Strap/band materialLeatherLeather
Bezel MaterialCeramicsCeramics
Strap size22mm20mm
Interchangeable band Yes, 22mmYes, 20mm
Screen protectionCorning Gorilla glass DXCorning Gorilla glass DX
Water resistant/ProtectionYes, IP68, 5ATM
Yes, IP68, 5ATM
Swim-proofYes, recommendedYes, recommended
Color(s)Mystic black
Mystic silver
Mystic bronze
Mystic silver


Internal storage8GB8GB
Memory card slotNoNo


BluetoothBluetooth v5.0Bluetooth v5.0
Bluetooth callingYesYes




Email alertYesYes
SMS alertYesYes
Calls alertYesYes
Event reminderYesYes
Third-party appsYesYes


Sleep apneaNoNo
Sleep trackingYesYes
Floors climbedYesYes
Heart rate monitoringYesYes
VO2 Max.YesYes
Blood oxygenYesYes
Blood pressureYesYes
Menstrual cycle trackingYesYes
Swim trackingYesYes
Under-water heart rate trackingYesYes
Preloaded mapsYesYes
On-screen workout modes____
Triathlon modeYesYes
ECG TrackingYesYes
Preloaded sport modesYes, 90Yes, 90
Safety trackingYesYes


Music streamingYesYes
Bluetooth musicYesYes


Heart rate monitor (HRM)YesYes
Gyroscope YesYes
Ambient lightYesYes
Pulse OximeterYesYes
Other sensors----


Operating system (OS)Tizen OS 5.5Tizen OS 5.5
ChipsetExynos 9110Exynos 9110
CPUDual core 1.15GHzDual core 1.15GHz


Type of batteryNon-removable Li-ion batteryNon-removable Li-ion battery
Battery capacity 340mAh247mAh
Battery lifeMixed Usage:2 daysMixed Usage:1 day+
Charging typeCharging dock
Wireless charging
Charging dock
Wireless charging
Charging timeAbout 1-2 hoursAbout 1-2 hours
Battery saver modeYesYes
Solar powerNoNo
Rapid charging__




Control cameraYesYes
Music controlYesYes
Find phoneYesYes
Text responseYesYes


Payment systemSamsung paySamsung pay
Compatibility Android 5.0+ & RAM 1.5GB+
iPhone 5+ and iOS 9.0+
Android 5.0+ & RAM 1.5GB+
iPhone 5+ and iOS 9.0+
Companion appSamsung Wearable appSamsung Wearable app
Voice commandYesYes


Samsung Galaxy Watch 3 (45mm)Samsung Galaxy Watch 3 (41mm)
Quick start guideQuick start guide
NOTE: We can't guarantee that all the information on this table are 100% correct. Read full disclaimer. Please, report an error.
Official SiteOfficial Site

Samsung Galaxy Watch 3 41mm/45mm Features Reviewed

  • Design
  • Galaxy Watch 3 comes in two sizes; 41mm and 45mm, both models look stunning with very enticing and attractive designs. At 45mm wide and 11.1mm thick is more compact and slimmer than 13mm of its predecessor. Yet, the 45mm has a wider 1.4 inches display that’s bigger than the 46mm model of Galaxy Watch, while the 41mm model has 1.2 inches display size. Super AMOLED powers the display and offers an attractive and interactive viewing experience. And there are over 50000 preloaded watch faces to choose from.

    The case of Galaxy Watch 3 is made of stainless steel, while the straps come in leather. The straps size for the 41mm model is 20mm, while 45mm has a strap width of 22mm. Both strap sizes can easily be swapped with compatible sizes on the market.

    Galaxy Watch 3 (41mm) comes in mystic bronze and mystic silver, while the (45mm) size is available in mystic black and mystic silver.

    Both models are rated 5ATM and certified MIL-STD-810G which makes any of the two suitable to wear to the pool and can also withstand harsher weather conditions.

  • Storage/Media
  • The Galaxy Watch 3 has twice the storage capacity of its predecessor. It has an 8GB storage capacity that allows you to take more of your favorite tracks with you, while it has 1GB RAM for improved performance.

    All models of Galaxy Watch 3 has microphone and loudspeaker. You can make and receive calls from the Bluetooth model by connecting to your phone Bluetooth. You can also access the Bixby voice assistant that allows you to carry out tasks and control smartthings devices with your voice.

  • Fitness Tracking Features
  • Galaxy Watch 3 comes with more fitness tracking features which its predecessor lacks. Besides sleep tracking in 4 stages, heart rate monitoring, steps, and calorie tracking, It also has an inbuilt GPS that enables it to track outdoor activities such as routes and locations.

    ECG tracking which was recently cleared by the FDA is present, as well as blood pressure monitoring, both features were introduced to Galaxy Watch Active 2 and received clearance in South Korea. Running coach that provides feedback on pace and form is also present on Galaxy Watch 3.

    The new fitness tracking features added to Galaxy Watch 3 are fitness level (VO2 Max), incident detection that calls emergency contacts when a trip occurs, and blood oxygen tracking. Only incident fall detection will be available on the Galaxy Watch out of the box, other new fitness tracking features will come later in OTA updates. Update, the first update to Galaxy Watch 3 has added VO2 Max., blood oxygen tracking and running coach.

  • Connectivity
  • The Galaxy Watch 3 also comes in LTE model which is equipped with an eSIM that makes it a standalone smartwatch that allows you to make and receive calls directly from the watch. The LTE models are priced a little higher than standard models.

  • Platform
  • Under the hood, Galaxy Watch 3 is powered by the Exynos 9110 chip just like Active 2 and Galaxy Watch, but it comes out of the box running on Tizen OS 5.5 which brings many fine interesting UI features that can improve user experience significantly.

    Some of the new features include the ability to see chat history alongside the image. There’s also the smart reply feature that analyzes replies you receive and can give reply suggestions.

    Also new is the bitmoji feature that gives you new ways to communicate with emoji.

    Besides, Galaxy Watch 3 features music playback on phone, unlock your phone, remote camera control, SMS, and calls notification. Just like other Samsung smartwatches, it comes with NFC that enables payment with Samsung Pay.

  • Battery Life
  • The battery life of Galaxy Watch 3 is quite impressive. The 45mm comes with a battery capacity of 340mAh, while the 41mm model comes with a battery capacity of 247mAh. Samsung claims the Galaxy Watch 3 can last up to 2 days. This is shorter than about 4 days you get with Galaxy Watch, it’s a compromise for the slimmer and more compact design.


  • Premium, sturdy and lightweight design.
  • A comprehensive fitness tracker.
  • More RAM for improved performance.
  • 8GB storage capacity
  • Easier to navigate.


  • Pricey
  • Battery life isn’t so impressive.


Prices of the Galaxy Watch 3 starts at $399 for the Bluetooth model of 41mm and $430 for the LTE model of 41mm, while the price for 45mm starts at $429 for Bluetooth and $480 for the LTE model.

2 thoughts on “Samsung Galaxy Watch 3 (45mm/41mm) Full Specifications and Features Review”

  1. I am looking for a smartphone where I can have it full on, text a Full Emergency Message to 911 and I can’t reply just need them on screen. I have an Allergy condition, when I have an attack I can’t speak or text because I am trying to survive. Will this watch do that?

    1. Galaxy watch 3 features incidental fall detection that allows the watch automatically call a preset emergency contact when it detects a fall. It also features SOS emergency that will allow you call preset emergency number. It will send a message to the number as well.

      I’ll do a video on this over the weekend so you can see how it works. Then, you should be able to make a more informed decision.

      I’ll post the link here once the video is published.

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