Galaxy Watch3 (45mm)

Galaxy Watch3 (45mm)

SM-R840NZKAEUA

  • The most advanced health monitor on a Galaxy smartwatch
  • The only smartwatch with a precision rotating bezel for app navigation
  • Large display for greater comfort

Choose your Colour

Introducing the new Galaxy Watch3

Precision rotating bezel

Take your pick of two sizes, 45mm or 41mm, each with a face you won't soon forget. Available in premium Mystic Black, Mystic Silver, and Mystic Bronze finish, the elegant design is outlined in a unique rotating bezel for a look that works around the clock.

Bigger display, Yet lighter and slimmer for comfort wear

Outlined in a subtle rotating bezel, it's easier to see and focus on what matters with an even bigger screen. Galaxy Watch3 is thinner and lighter than its predecessor, with a sophisticated look and slimmed down frame.

Premium quality, down to the strap

Galaxy Watch3's design is polished off with a premium genuine leather strap. Aged leather creates a natural look, and when you turn it over, see strengthened leather that protects against discolouration.

Beauty with smarts to match

Complete Galaxy Watch3's signature look with the largest number of watch faces to choose from, all matching its sleek body. Make your own combination with over 40 variations, and see the useful information you need at a glance while easily accessing your favourite apps.

Get a better night's sleep

Galaxy Watch3 records your REM cycles, deep sleep, and total sleep time to score and help improve the quality of your rest. Samsung partnered with the National Sleep Foundation to include educational content and sleep tips right on your device, to help you understand and improve your sleep.

*Sleep management functions (REM cycles, deep sleep, and total sleep time) on the watch can be used as standalone, but smartphone pairing is recommended in order to see sleep score. Insight only available on paired smartphone.

Hit your best, then do it again

Equipped with over 120 home workout programs to choose from, Galaxy Watch3 helps you get your body moving on your time. Pick from your phone and cast to your TV – as you work out, it'll display your heart rate in real time. Use the Ridge Sport Band for even more accurate stats.

*Fitness tracking on the watch can be used as standalone, but data stored in the watch may only be partially displayed after a certain period of time. Smartphone pairing is required in order to keep all data stored. Feature requires compatible smart TV, Samsung SmartThings app and Bluetooth connection. Smartphone, TV, and Ridge Sport Band sold separately.

Improve every stride

Galaxy Watch3's running guide lets you keep pace as you get tips on the go. The advanced algorithm analyses how you move to help improve your form. You can even measure VO2 max values and keep up with your daily, weekly, and monthly performance right from your phone.*

*Feature requires pairing with smartphone.

Keep the conversation going

When you get a new text, Galaxy Watch3 shows your chat history so you can effortlessly follow the conversation. You can also see images without an extra tap, making it even easier to keep the mood going while on a run.

*Wi-Fi/LTE connection is required on Galaxy Watch3 and feature requires pairing with smartphone. 4G LTE standalone connectivity available on Galaxy Watch Active2 4G model connected exclusively on EE* and Vodafone. Wireless network and pairing with compatible Samsung Galaxy device required. Standalone voice calling on 4G model requires an EE PAYM voice plan with data subscription to access the ‘One Number’ service. Available to all Vodafone Pay Monthly Mobile customers on a Red Plan. You will use the allowance from your current PAYM or SIMO plan to call your Samsung Watch. Compatible with Samsung smartphones from 2017 onwards.

*Wi-Fi/LTE connection is required on Galaxy Watch3 and feature requires pairing with smartphone. 4G LTE standalone connectivity available on Galaxy Watch Active2 4G model connected exclusively on EE* and Vodafone. Wireless network and pairing with compatible Samsung Galaxy device required. Standalone voice calling on 4G model requires an EE PAYM voice plan with data subscription to access the ‘One Number’ service. Available to all Vodafone Pay Monthly Mobile customers on a Red Plan. You will use the allowance from your current PAYM or SIMO plan to call your Samsung Watch. Compatible with Samsung smartphones from 2017 onwards.

Add a little context with smart reply

Stay connected with others even on the go – and without fumbling to reply. Galaxy Watch3's smart reply analyses texts and photos you receive and gives you suggested replies, supporting different categories that include food, celebrations, selfies, and more.

*Wi-Fi/LTE connection is required on Galaxy Watch3 and feature requires pairing with smartphone. 4G LTE standalone connectivity available on Galaxy Watch Active2 4G model connected exclusively on EE* and Vodafone. Wireless network and pairing with compatible Samsung Galaxy device required. Standalone voice calling on 4G model requires an EE PAYM voice plan with data subscription to access the ‘One Number’ service. Available to all Vodafone Pay Monthly Mobile customers on a Red Plan. You will use the allowance from your current PAYM or SIMO plan to call your Samsung Watch. Compatible with Samsung smartphones from 2017 onwards.

*Wi-Fi/LTE connection is required on Galaxy Watch3 and feature requires pairing with smartphone. 4G LTE standalone connectivity available on Galaxy Watch Active2 4G model connected exclusively on EE* and Vodafone. Wireless network and pairing with compatible Samsung Galaxy device required. Standalone voice calling on 4G model requires an EE PAYM voice plan with data subscription to access the ‘One Number’ service. Available to all Vodafone Pay Monthly Mobile customers on a Red Plan. You will use the allowance from your current PAYM or SIMO plan to call your Samsung Watch. Compatible with Samsung smartphones from 2017 onwards.

More fun in your messages

Bitmoji stickers open up fun new ways to communicate. Personalise your Bitmoji to look just like you and use Bitmoji stickers to jazz up the way you talk to family and friends.

*Bitmoji is a trademark of Snap Inc. Sending Bitmoji stickers requires Bitmoji app version 10.84 or later. Bitmoji feature is only supported on the Message app. Wi-Fi/LTE connection is required on Galaxy Watch3 and feature requires pairing with smartphone.

Express yourself in more ways than one

Add a little more of you to your messages with AR Emojis. On your way? Show it. Laughing? Express it. It's easy to get the message across.

*AR Emoji feature is compatible with Galaxy smartphones supporting One UI 2.5 and above. Feature only supported on the Message app. Wi-Fi/LTE connection is required on Galaxy Watch3 and feature requires pairing with smartphone.

The beat goes on and on

Your music doesn't stop as you go from one device to another. Play Spotify on your Galaxy Note20, then open it with the Spotify app icon on your watch face to easily switch songs from your Galaxy Watch3. Or you can even touch and hold Galaxy Buds Live to get lost in the music.*

*Must be logged into Spotify. Spotify Premium subscription required. Spotify is only supported on devices running version 8.5.56 and later. Requires configuring touchpad settings through the Galaxy Wearables app. Galaxy Note20 and Galaxy Buds Live sold separately.

*Must be logged into Spotify. Spotify Premium subscription required. Spotify is only supported on devices running version 8.5.56 and later. Requires configuring touchpad settings through the Galaxy Wearables app. Galaxy Note20 and Galaxy Buds Live sold separately.

Team up with other apps

Put together a team of Galaxy Apps to join you and your phone in your day-to-day. Find your phone and see your phone's photos from your watch, or switch between devices to control your music and check reminders. The perfect partners are all on your wrist.

Team up with other apps

Put together a team of Galaxy Apps to join you and your phone in your day-to-day. Find your phone and see your phone's photos from your watch, or switch between devices to control your music and check reminders. The perfect partners are all on your wrist.

Team up with other apps

Put together a team of Galaxy Apps to join you and your phone in your day-to-day. Find your phone and see your phone's photos from your watch, or switch between devices to control your music and check reminders. The perfect partners are all on your wrist.

Ready for action right out of the box

More ways to power up your work and play

Simply connect Galaxy Watch3 to your compatible Galaxy devices through your Samsung Cloud account. As you go to work or workout, it's quick and easy to go from watch to Galaxy Note20, or from watch to Galaxy Buds Live via Bluetooth.

*Galaxy Note20 and Galaxy Buds Live sold separately.

Gets along with other devices

Galaxy Watch3 is compatible and can easily connect with a range of Galaxy and non-Galaxy devices.

*Compatible with Android 5.0 (L OS) or higher, RAM 1.5GB above, iPhone 5 and above, iOS 9.0 or above.

*Compatible with Android 5.0 (L OS) or higher, RAM 1.5GB above, iPhone 5 and above, iOS 9.0 or above.

Specifications

  • NFC NFC
  • Bluetooth Version Bluetooth v5.0
  • Size (Main Display) 1.4" (34.5mm)
  • CPU Speed 1.15GHz
  • ROM Size (GB) 8
  • Sensors Accelerometer,Barometer,Gyro Sensor,Light Sensor,Optical Heart Rate Sensor

Support

Find answers to the questions you have about our products

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User manual & Downloads
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  • Safety Guide
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