Samsung - Galaxy Fit3 Aluminum Smartwatch 40mm BT - Dark Gray - (2025)
Color
Dark GraySpecifications
- Screen Size40 millimetersTouch ScreenYesOperating System CompatibilityAndroid, Wear OSOperating SystemAndroidApp CompatibleYesBuilt-in Storage0.056 gigabytes
- Key Specs
- Screen Size: 40 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
- Operating System Compatibility: Android, Wear OS
- Operating System: Android (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Built-in Storage: 0.056 gigabytes
- Global Positioning: GPS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Usage Time: 300 hours (All battery claims depend on network configuration and many other factors; actual results will vary. Battery has limited recharge cycles and may eventually need to be replaced. Battery life and charge cycles vary by use and settings.)
- Metrics Measured: Cycling speed, Duration of exercise, Hours slept, Steps taken
- Protective Qualities: Water resistant
- Maximum Depth of Water Resistance: 165 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Band Material: Silicone
- General
- Brand: Samsung
- Model Number: SM-R390NZAAXAA
- Product Name: Galaxy Fit3 Aluminum Smartwatch 40mm BT
- Color: Dark Gray
- Product Type: Smartwatch
- Form Factor: Wristwatch (The size, arrangement, and physical configuration of the product.)
- Model Family: Samsung Galaxy Fit3
- Year of Release: 2025
- Design
- Case Size: 40mm (The diameter or longest measurement of the case.)
- Case Shape: Rectangular
- Band Type: One Click Band
- Band Color: Gray
- Clasp Type: Buckle
- Dimensions
- Case Thickness: 0.38 inches
- Band Width: 24 millimeters
- Product Height: 0.38 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 1.6 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 0.69 ounces (The out of box weight of the item.)
- Product Length: 1.2 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Minimum Wrist Size: 16.5 millimeters
- Maximum Wrist Size: 21.5 millimeters
- Size: Medium
- Band Size: Small/Medium
- Display
- Display Screen: true
- Screen Size: 40 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
- Screen Resolution: 256 x 402 (Screens come in a range of resolutions (measured in pixels, horizontal x vertical). The higher the resolution, the greater the picture quality.)
- Display Type: AMOLED
- Color Display: true
- Backlit Display: true (Integrated lights allow for visibility of the display in low-light conditions.)
- Adjustable Brightness: true
- Customizable Watch Faces: true
- Screen Material: AMOLED
- Compatibility
- Operating System Compatibility: Android, Wear OS
- Operating System: Android (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Voice Assistant Built-in: Bixby, Google Assistant (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
- Connectivity
- Data Plan Required: false
- Wireless Connectivity: Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Features
- Built-in Storage: 0.056 gigabytes
- GPS Enabled: true
- Global Positioning: GPS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Usage Time: 300 hours (All battery claims depend on network configuration and many other factors; actual results will vary. Battery has limited recharge cycles and may eventually need to be replaced. Battery life and charge cycles vary by use and settings.)
- Mobile Notifications: true
- Alert Type: Audible, Vibration, Visual
- Music Player: true
- Silent Alarm: false
- Built-In Microphone: false
- Voice Activated: false (Able to interpret dictation and/or respond to simple voice commands.)
- Languages Supported: Albanian, American Sign Language, Arabic, Bulgarian, Burmese, Chinese (simplified)
- Activity
- Metrics Measured: Cycling speed, Duration of exercise, Hours slept, Steps taken
- Multi-Sport Tracking: true
- Sensors: Accelerometer, Barometer, Compass, Electrical heart rate (ECG) sensor, Gyro sensor, Temperature sensor (Detects stimuli such as heat, light, sound, motion, or pressure and responds accordingly by operating a control or initiating a function of the device.)
- Medical Incident Notification: 911/EMS (Receive notifications for detected medical incidents that enable you to contact emergency services if needed. In some cases, emergency services and/or preprogrammed emergency contacts may be notified automatically. May be reliant on whether wireless network coverage is available.)
- Medical Incidents Detected: Fall
- Performance
- Protective Qualities: Water resistant
- Maximum Depth of Water Resistance: 165 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Ingress Protection (IP) Rating: IP68 (A 4 to 6 character code classifying a product's degree of protection against intrusion of solid particles and liquids as well as impact. Each number in the IP Code denotes a level of protection, determined through testing and published by the International Electrotechnical Commission (IEC). The first digit represents the degree of protection against solid foreign objects or particles and the second digit represents the degree of protection against water ingress.)
- Processor
- Central Processing Unit: ARM Cortex-M33
- Power
- Rechargeable: true
- Battery Strength Indicator: true
- Battery Capacity: 208 milliampere hours (The amount of energy stored in the battery.)
- Charging Time: 120 minutes
- Charging Interface(s): 4-pin (The connection for transmitting power to charge the device.)
- Battery Chemistry: Lithium-ion
- Replaceable Battery: false
- Material
- Band Material: Silicone
- Case Material: Aluminum
- Case Back Material: Aluminum
- Camera
- Integrated Camera: No
- Warranty
- Warranty - Parts: 1 year
- Warranty - Labor: 1 year
- Other
- UPC: 887276932446
Get a little help with your wellness using Galaxy Fit3. With a slim, sporty design, Fit3 provides you the basics to help you track your wellness journey — from your daily steps to your heart rate¹. It also tracks your sleep habits, collecting info on how long and how well you slept. Plus, Fit3 syncs seamlessly with your compatible Samsung smartphone, where you can use the Samsung Health app² to give you even more insights into your daily movement. Galaxy Fit3 is more than a device — it’s a way to simply track and monitor how you move each day.
- Track your movement. Reach your goals.: Keep an eye on how much you’re moving with Daily Activity Tracker.³ From walking to cycling, Galaxy Fit3 tracks your daily activities. Keep up with your steps, calories burned and how long you’ve been active as you move closer to your goals.
- Track your heart health: Your heart is at the center of your wellness. Heart Health on Galaxy Fit3 gives you valuable insight you can use to learn more about your heart every day. It’s your personal companion that helps you keep a pulse on your heart rate.¹, ³
- Get your sleep down to a science: When you sleep better, you feel better. Track your sleep patterns³ with Galaxy Fit3. It tracks your sleep cycles, recording how long and how well you slept. Get deeper insights on the Samsung Health app and learn how to build better rest habits.
- Go for up to 13 days between charges: Whether you’re at the gym, on a walk or just living your life, your activity goals don’t take a break — and neither should your tracker. Track your body with up to 13 days⁴ of battery life on Galaxy Fit3. Focus more on getting your steps in and worry less about needing to recharge your device.
- Built for movement: Whether you’re walking or cycling, Galaxy Fit3 is designed to be tough enough to keep up. It features a durable aluminum frame that stands up to your workout.
- Goes with everything: Designed for comfort and all-day wear, you’ll barely notice Galaxy Fit3 on your wrist as it tracks your daily activities. It’s lightweight, sleek and unobtrusive so it fits seamlessly into your lifestyle without weighing you down.
- Your blood oxygen level at a glance: Understanding your blood oxygen level is an important part of learning more about your overall wellness. Galaxy Fit3 monitors your blood oxygen levels throughout your day, keeping up with how much they might fluctuate during different activities, like workouts, sleep and rest.¹,³ It’s a great way to make more informed decisions about your fitness.
- Get the score on how much you snore: Take a step toward more restful nights with Snore Detection⁵, ⁶ with the help of Galaxy Fit3. It monitors your sleep cycles and tracks your snores, giving you feedback on duration and intensity. Identify your patterns so you can make adjustments to reduce how much you snore and wake up feeling more refreshed
- Stress management made simple: Get help monitoring your stress levels with Stress Tracking.³ Galaxy Fit3 measures stress indicators like heart rate in real time, giving you a snapshot of your stress levels throughout your day.
- Workouts that track themselves: Auto Workout Detection³ identifies when you do a popular activity, like walking or running, then starts tracking it automatically — no extra effort on your part required. Easily collect insights on your exercise routine and stay informed every step of the way
- A helping hand if you fall: Galaxy Fit3 helps you get the assistance you need in case of an unexpected situation. Whether you’re at home, on a walk or on the go, Fit3 can detect if you’ve experienced a fall ⁷, ⁵ and you can send an alert to your emergency contact from your phone.
- Keep calm — help is on the way: Feel confident knowing help is on the way with SOS Emergency Call ⁵,⁶ with the help of your Galaxy Fit3. Get lost on your new walking trail? Fit3 connects you to emergency services or a trusted contact from your phone so you can get the help you need.
- Snap pics from your wrist: Galaxy Fit3 helps you capture special moments, all from the convenience of your wrist. Gathering with a group of friends? Round them all up for a photo and use the camera control ⁵, ⁶ on your Fit3 to snap the shot. The perfect pic is waiting for you on your phone, and your memories never looked better.
- Find your phone in a snap: Get help locating your lost phone with Galaxy Fit3. The Find My Phone⁶ app helps locate your phone in seconds. Simply open the app and tap to search. Your missing phone will play an alarm so you can recover it quickly.
- Track your movement. Reach your goals.: Keep an eye on how much you’re moving with Daily Activity Tracker.³ From walking to cycling, Galaxy Fit3 tracks your daily activities. Keep up with your steps, calories burned and how long you’ve been active as you move closer to your goals.
- Track your heart health: Your heart is at the center of your wellness. Heart Health on Galaxy Fit3 gives you valuable insight you can use to learn more about your heart every day. It’s your personal companion that helps you keep a pulse on your heart rate.¹, ³
- Get your sleep down to a science: When you sleep better, you feel better. Track your sleep patterns³ with Galaxy Fit3. It tracks your sleep cycles, recording how long and how well you slept. Get deeper insights on the Samsung Health app and learn how to build better rest habits.
- Go for up to 13 days between charges: Whether you’re at the gym, on a walk or just living your life, your activity goals don’t take a break — and neither should your tracker. Track your body with up to 13 days⁴ of battery life on Galaxy Fit3. Focus more on getting your steps in and worry less about needing to recharge your device.
- Built for movement: Whether you’re walking or cycling, Galaxy Fit3 is designed to be tough enough to keep up. It features a durable aluminum frame that stands up to your workout.
- Goes with everything: Designed for comfort and all-day wear, you’ll barely notice Galaxy Fit3 on your wrist as it tracks your daily activities. It’s lightweight, sleek and unobtrusive so it fits seamlessly into your lifestyle without weighing you down.
- Your blood oxygen level at a glance: Understanding your blood oxygen level is an important part of learning more about your overall wellness. Galaxy Fit3 monitors your blood oxygen levels throughout your day, keeping up with how much they might fluctuate during different activities, like workouts, sleep and rest.¹,³ It’s a great way to make more informed decisions about your fitness.
- Get the score on how much you snore: Take a step toward more restful nights with Snore Detection⁵, ⁶ with the help of Galaxy Fit3. It monitors your sleep cycles and tracks your snores, giving you feedback on duration and intensity. Identify your patterns so you can make adjustments to reduce how much you snore and wake up feeling more refreshed
- Stress management made simple: Get help monitoring your stress levels with Stress Tracking.³ Galaxy Fit3 measures stress indicators like heart rate in real time, giving you a snapshot of your stress levels throughout your day.
- Workouts that track themselves: Auto Workout Detection³ identifies when you do a popular activity, like walking or running, then starts tracking it automatically — no extra effort on your part required. Easily collect insights on your exercise routine and stay informed every step of the way
- A helping hand if you fall: Galaxy Fit3 helps you get the assistance you need in case of an unexpected situation. Whether you’re at home, on a walk or on the go, Fit3 can detect if you’ve experienced a fall ⁷, ⁵ and you can send an alert to your emergency contact from your phone.
- Keep calm — help is on the way: Feel confident knowing help is on the way with SOS Emergency Call ⁵,⁶ with the help of your Galaxy Fit3. Get lost on your new walking trail? Fit3 connects you to emergency services or a trusted contact from your phone so you can get the help you need.
- Snap pics from your wrist: Galaxy Fit3 helps you capture special moments, all from the convenience of your wrist. Gathering with a group of friends? Round them all up for a photo and use the camera control ⁵, ⁶ on your Fit3 to snap the shot. The perfect pic is waiting for you on your phone, and your memories never looked better.
- Find your phone in a snap: Get help locating your lost phone with Galaxy Fit3. The Find My Phone⁶ app helps locate your phone in seconds. Simply open the app and tap to search. Your missing phone will play an alarm so you can recover it quickly.
Whats Included
- Quick Start Guide
- Galaxy Fit3
- POGO Charger
- Quick Start Guide
- Galaxy Fit3
- POGO Charger
Disclaimers
- ¹Not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
- ²Requires a Samsung account.
- ³Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account.
- ⁴Based on typical use with Always On Display turned off (default setting); results may vary.
- ⁵Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account.
- ⁶Galaxy Fit3 must be within Bluetooth range of compatible Samsung Galaxy phone
- ⁷Fall detection measurement software is not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
- ¹Not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
- ²Requires a Samsung account.
- ³Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account.
- ⁴Based on typical use with Always On Display turned off (default setting); results may vary.
- ⁵Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account.
- ⁶Galaxy Fit3 must be within Bluetooth range of compatible Samsung Galaxy phone
- ⁷Fall detection measurement software is not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
Q: What is the battery life of the Galaxy Fit3?
A: The battery life of the Galaxy Fit3 is up to 13 days on a single charge.
Q: How long does it take to charge the Galaxy Fit3?
A: The charging time for the Galaxy Fit3 is 120 minutes.
Q: Can I use the Galaxy Fit3 to take pictures?
A: Yes, you can use the camera control feature on the Galaxy Fit3 to take pictures remotely with your compatible smartphone.
Q: What is the screen size of the Galaxy Fit3?
A: The Galaxy Fit3 has a screen size of 40 millimeters.
Q: Does the Galaxy Fit3 have GPS?
A: Yes, the Galaxy Fit3 is equipped with GPS functionality.
Q: Does the Galaxy Fit3 have a find my phone feature?
A: Yes, the Galaxy Fit3 can help you locate your lost phone using the Find My Phone app.
Q: Can the Galaxy Fit3 track sleep?
A: Yes, the Galaxy Fit3 can track your sleep patterns, including sleep cycles and duration.
Q: Can I track my sleep with this smartwatch?
A: This smartwatch allows you to track your sleep patterns, including sleep cycles and duration.
Compare similar products
Get a little help with your wellness using Galaxy Fit3. With a slim, sporty design, Fit3 provides you the basics to help you track your wellness journey — from your daily steps to your heart rate¹. It also tracks your sleep habits, collecting info on how long and how well you slept. Plus, Fit3 syncs seamlessly with your compatible Samsung smartphone, where you can use the Samsung Health app² to give you even more insights into your daily movement. Galaxy Fit3 is more than a device — it’s a way to simply track and monitor how you move each day.
Start your journey toward a healthier, happier you with Galaxy Watch FE, the Watch that knows you best. Get more out of every movement and work toward your health goals with easy-to-understand insights like step counts, calories burned, heart health, muscle mass and more.¹ Your best self isn’t just made by moving — Advanced Sleep Coaching with Galaxy AI² helps you plan your bedtime, detect snoring³ and track your sleep stages so you can rest better and wake up feeling energized. When you’re up and ready to go, feel free to make calls, take pics and pull up playlists right from your wrist thanks to seamless connectivity with your other Galaxy devices. With its sleek and lightweight design, you can enjoy all-day comfort and style, wherever your day takes you. Plus, at an affordable price, Watch FE helps you stick to all your goals. Empower you and your loved ones to take control of your health and wellness with an everyday companion that will support you every step of the way — Galaxy Watch FE.
Your favorite new health and wellness companion is here — Galaxy Watch7. Enhanced with Galaxy AI,¹ this Watch has everything you need to keep you moving toward your health goals. Wake up on the right side of the bed every morning with an Energy Score1 that helps you understand your well-being better. Hit your morning workout while staying in touch with your world — make calls from your Watch and quickly respond to texts on the go with Suggested Replies.² Then hone in on your heart health during your workout with improved Heart Rate Tracking,³ and improve each day with personalized Wellness Tips⁴ viewable right on your Galaxy smartphone.⁵ Plus, stay in the zone by streaming your favorite playlist or podcast from your Watch to your Galaxy Buds.⁶ Your ultimate fitness partner is now on your wrist — Galaxy Watch7.
Amazfit Band 7 offers big features in a small package. The Band 7 has a 1.47” display bring you a clear visual experience. When fully charged the device can last up to 18 days with a typical use and up to 9 days with heavy use. The Amazfit Band 7 can assess three health indicators (SPO2, heart-rate and stress) with one click in only 45 seconds. The Band 7 offers 120 sport modes to track useful exercise data like distance, speed, heart rate, etc.
| Pros for Samsung - Galaxy Fit3 Aluminum Smartwatch 40mm BT - Dark Gray - (2025) | |||
|---|---|---|---|
| Overall Performance, Battery Life, Ease of Use, Sleep Tracking, Size | Overall Performance, Ease of Use, Features, Design, Sleep Tracking | Overall Performance, Ease of Use, Features, Design, Health Tracking | Battery Life, Overall Performance, Sleep Tracking, Ease of use, Price |
| Cons for Samsung - Galaxy Fit3 Aluminum Smartwatch 40mm BT - Dark Gray - (2025) | |||
| Step Counter Accuracy | Battery Life, Connectivity, Watch Band, Compatibility | Battery Life, Band Comfort | Band, GPS, Strap |
Specs
Reviews
Customers are saying
Customers are enthusiastic about the Galaxy Fit3 Aluminum Smartwatch, highlighting its overall performance, impressive battery life, and ease of use. Many appreciate its comfortable size and lightweight design, along with the helpful sleep tracking feature. While the price point and fast charging are also well-received, some users have noted concerns regarding the accuracy of the step counter.
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- Rated 4 out of 5 stars
Find Snooze
Decent, affordable smartwatch....no regrets, but wished that I had purchased a screen protector; face scratches easily. It fits comfortably on petite wrists. I was wavering between the charcoal band and the white. Glad that I stuck with the darker, I personally think that the white would be too bold for everyday use. To each his own. The apps and features are pretty fundamental...no extra bells and whistles like GPS...can't reply to texts or make calls, although you will receive notification when receiving an incoming call/message. The vibration is spotty or maybe I'm glancing at my watch as calls are coming in and thats why the vibration is never initiated. Great for quickly looking at the weather, especially in Oklahoma where you have to check the weather daily (or hourly). Alarms on your phone can be synced on the watch and you can add additional alarms on the band. I use it mostly for an alarm, weather updates, calculator, stopwatch, remote camera control, Find My Phone, and calendar...nice to look at health stats for giggles. Sooo really, just about everything on the watch is put to use. Buy it for an introductory smartwatch and stop searching for your phone under the covers to turn off the alarm. Every second of snooze counts. *Battery life seems okay, definitely not an iPad battery, but it charges quickly...need usb-c port to charge, not a standard usb-a.
Posted by
- Rated 4 out of 5 stars
Amazing watch for it's price point
Loved this watch for many reasons listed below, some areas of opportunity. Pros Long battery life and fast charging speed. Reminds me of events, allows me to look at messages, tracks steps and activity, notifies me of calls even when phone is on silent. Extremely comfortable to wear and easy to connect to Samsung phone. Areas of improvement: Heart beat sensor could be better / more accurate Sleep tracking is a bit lackluster and not very confident. Overall review: Amazing watch for it's pricepoint. Gives you all the gadgets you need for basic exercise and everyday wear.
Posted by IvanEC
- Rated 5 out of 5 stars
Definitely Worth Price
Easy connection with app installed, audio speaker was clear for calls, and alerts loud enough for moderately noisy environments. Menu easy to use and functions practically useful. Large screen/face. The health tracker is an extra bonus. Light weight, easy to install/use and the strap is good quality silicon. It also has a long battery life.
Posted by TeneishaP
