Samsung Galaxy Fit3 specifications and in-depth review

Samsung Galaxy Fit3

Manufacturer: Samsung

The Samsung Galaxy Fit3 is a lightweight fitness tracker weighing just 18.5 g, designed for everyday wear and activity monitoring. It features a 1.6″ AMOLED touchscreen with an Always-On Display mode, housed in a slim body measuring 42.9 × 28.8 × 9.9 mm with a replaceable 22 mm band. Built to handle water exposure, the device carries both an IP68 rating and a 5 ATM water resistance rating with a depth rating of 50 m, making it suitable for swimming. It operates within a temperature range of 0°C to 35°C and connects to Android devices via Bluetooth 5.3.

On the health and activity side, the Galaxy Fit3 tracks steps, distance, pace, elevation, sleep, and swimming stroke count across a library of 100 exercises with multi-sport mode and automatic activity detection. Sensors include a heart rate monitor, pulse oximeter, barometer, gyroscope, and accelerometer, supporting HRV tracking, resting heart rate measurement, and irregular heart rate warnings, though ECG and body temperature sensing are not available. The companion app — free and ad-free — covers calorie burn, food and water intake, BMI, weight, and menstrual cycle tracking alongside coaching and goal setting. Battery life reaches 13 days in standard use and 72 hours in continuous training mode, with a charge time of just 30 minutes from a 208 mAh cell. GPS is not built in, but the device supports connected GPS through a paired phone.

Pros
  • A 13-day battery life in standard use and 72 hours in training mode, combined with a 30-minute full charge time, makes day-to-day battery management largely effortless
  • The IP68 and 5 ATM water resistance rating with a 50 m depth rating covers swimming and other water-based activities without concern
  • At 18.5 g with a replaceable 22 mm band, the lightweight and low-profile design supports comfortable all-day and overnight wear
  • The activity tracking feature set is comprehensive for a slim tracker, covering steps, distance, pace, elevation, route tracking, swimming stroke count, sleep reports, and automatic activity detection across 100 exercise types
  • Fall detection, irregular heart rate warnings, fast/slow heart rate notifications, and HRV tracking add a meaningful layer of passive health monitoring beyond basic fitness metrics
  • The companion app is free and ad-free, and includes food diary, calorie intake, water tracking, BMI, menstrual cycle prediction, coaching, and goal setting at no additional cost
Cons
  • There is no built-in GPS, so accurate route and distance tracking during outdoor workouts requires carrying a paired Android phone
  • Compatibility is limited to Android devices only, with no iOS support, restricting the potential user base significantly
  • VO2 max measurement, readiness and recovery scoring, ECG, body temperature sensing, and a compass are all absent, leaving gaps compared to more sensor-rich fitness trackers
  • The maximum Bluetooth range of 10 m is modest, limiting how far the device can stray from its paired phone while staying connected
  • There is no smart alarm, voice commands, or live tracking, which reduces the device's utility for users who rely on those features during workouts or sleep routines
Who is this for?

The Samsung Galaxy Fit3 is well-suited to Android users who want a lightweight, low-maintenance fitness tracker for everyday health monitoring and swimming. Its 13-day battery life and 30-minute charge time make it a practical choice for users who prefer to wear their tracker continuously without frequent charging interruptions. The 5 ATM and IP68 water resistance with a 50 m depth rating supports swimmers who want stroke counting and session tracking in the pool, while the broad app feature set — covering sleep, food, hydration, menstrual cycle tracking, and coaching — serves users looking for a consolidated daily health overview. Those who value passive safety features such as fall detection and irregular heart rate warnings will also find the device a capable companion for everyday wear.

Who is this NOT for?

Users who rely on built-in GPS for accurate outdoor route and distance tracking without carrying a phone will find the Galaxy Fit3 unsuitable, as location data depends entirely on a paired Android smartphone. Athletes or health-focused users who require advanced metrics such as VO2 max, ECG readings, body temperature sensing, or readiness and recovery scores will encounter meaningful gaps in the sensor and feature set. The device is also a poor fit for iPhone users, as iOS compatibility is entirely absent, and those who prioritize live workout tracking or a smart alarm for gradual wake-up will find neither available on this tracker.

Design:

screen size 1.6"
Display type OLED/AMOLED
Ingress Protection (IP) rating IP68
ATM rating 5 ATM
pixel density 297.87 ppi
resolution 256 x 402 px
refresh rate 60Hz
has branded damage-resistant glass
has a touch screen
Has a display
waterproof depth rating 50 m
Watch band is replaceable
is a smart ring
width 28.8 mm
thickness 9.9 mm
height 42.9 mm
maximum operating temperature 35 °C
volume 12.231648 cm³
weight 18.5 g
lowest potential operating temperature 0 °C
width of band 22 mm
Always-On Display
Has sapphire glass display

The Samsung Galaxy Fit3 is a wrist-worn fitness tracker, not a smart ring, measuring 42.9 × 28.8 × 9.9 mm and weighing just 18.5 g. It features a 1.6″ AMOLED touchscreen with a resolution of 256 × 402 px at 297.87 ppi, a 60 Hz refresh rate, and an Always-On Display mode; the panel does not use sapphire or branded damage-resistant glass. The band is replaceable at a width of 22 mm, and the device is rated for operation between 0°C and 35°C. Water protection is rated at IP68 and 5 ATM with a depth rating of 50 m, covering swimming and surface water activities.

Sensors:

has GPS
Has a heart rate monitor
Monitors blood oxygenation levels
Has ECG technology
Has a temperature sensor
Has a barometer
has a gyroscope
Has a cadence sensor
Monitors perspiration
has a compass
has an accelerometer

The Samsung Galaxy Fit3 includes a heart rate monitor, pulse oximeter, barometer, gyroscope, and accelerometer for a well-rounded set of onboard sensors covering cardiovascular monitoring, blood oxygen levels, altitude changes, and motion tracking. A compass, cadence sensor, and perspiration monitor are not present, and body temperature sensing and ECG technology are also absent. GPS is not built into the device, so location-based tracking relies on a connected smartphone.

Activity tracking:

Detects activities automatically
Has multi-sport mode
Has exercise tagging
Tracks elevation
Tracks distance
Tracks steps taken
Has a route tracker
Measures pace
Tracks your sleep
Provides sleep reports
Has a stroke counter for swimming
Designed for diving
Designed for golf

The Samsung Galaxy Fit3 offers a broad set of activity tracking capabilities, covering steps, distance, pace, elevation, and route tracking alongside automatic activity detection and multi-sport mode. Exercise tagging is supported, giving users the ability to label and log specific workouts, and the device includes a stroke counter for swimming sessions. Sleep tracking is also present, with detailed sleep reports provided through the companion app. The device is not designed for diving or golf-specific use.

Connectivity:

supports Wi-Fi
Bluetooth version 5.3
has NFC
Is compatible with Android
Is compatible with iOS
supports Galileo
supports ANT+
has a cellular module

The Samsung Galaxy Fit3 connects to a paired device via Bluetooth 5.3 and is compatible with Android smartphones only; iOS devices are not supported. The tracker does not include Wi-Fi, NFC, ANT+, a cellular module, or Galileo satellite support, keeping its wireless feature set focused solely on Bluetooth-based pairing.

Battery:

battery life 13 days
charge time 0.5 hours
has wireless charging
battery power 208 mAh
battery life in training mode 72 hours
Has a solar power battery
has a rechargeable battery
has a removable battery

The Samsung Galaxy Fit3 is powered by a non-removable 208 mAh rechargeable battery rated for up to 13 days of use in standard mode and 72 hours in continuous training mode. Charging is wired only — wireless and solar charging are not supported — but the full charge time of just 30 minutes keeps downtime to a minimum.

Features:

has HRV tracking
measures VO2 max
measures resting heart rate
has fast/slow heart rate notifications
shows readiness level
Has smart alarm
Has silent alarm
Has call control
Locates your phone
has fall detection
has irregular heart rate warnings
Has vibrating alerts
Has notifications
Has a stopwatch
Can be used to answer calls
Has a built-in camera remote control function
internal storage 0.256GB
RAM 0.016GB
Compatible with external heart rate monitors
warranty period 1 years
Has auto pause
Available on PC
Compatible with smart scales
Has passcode
has voice commands
Acquires GPS faster

The Samsung Galaxy Fit3 includes HRV tracking, resting heart rate measurement, fast/slow heart rate notifications, and irregular heart rate warnings for ongoing cardiovascular monitoring, though VO2 max measurement and readiness or recovery scoring are not available. On the alerting side, the device supports vibrating alerts, wrist notifications, a silent alarm, call control, and a find-phone function, but cannot be used to answer calls directly and does not offer a smart alarm or voice commands. Fall detection is present, adding a passive safety layer during daily wear, and the device also includes a stopwatch, auto pause for workouts, a camera remote shutter function, and passcode protection. It is compatible with external heart rate monitors and smart scales, has 0.256 GB of internal storage and 16 MB of RAM, and comes with a one-year warranty. The companion software is not available on PC.

App & Software:

Counts how many calories you've burned
Provides activity reports
Has inactivity alerts
Has goal setting
Has achievements
Supports routes
number of exercises 100
Has barcode scanner on app
Can be personalised
Has voice feedback
Has music playback
Has video tutorials
Supports widgets
Suggests recipes
Has live tracking
Tracks BMI
Has weight tracking
Tracks calorie intake
Tracks water intake
Has temperature tracking
Predicts start date
Has food diary
Has period notifications
Has coaching
Ad-free
Has exercise diary
Free app

The companion app for the Samsung Galaxy Fit3 is free and ad-free, offering a broad range of health and fitness tracking tools. It covers calorie burn, food and water intake, BMI, weight, and temperature tracking, with a food diary and exercise diary also available, though a barcode scanner and recipe suggestions are not included. Menstrual cycle features extend to period notifications and start date prediction, while coaching, goal setting, inactivity alerts, achievements, and app personalisation support a structured approach to health management. On the activity side, the app supports 100 exercises, routes, activity reports, widgets, voice feedback, and music playback during workouts; live tracking and video tutorials are not available.

Miscellaneous:

water resistance Water resistant
has a battery level indicator
maximum Bluetooth range 10 m
has an external memory slot
has a socket for a 3.5 mm audio jack

The Samsung Galaxy Fit3 is water resistant and includes a battery level indicator for monitoring remaining charge at a glance. Its maximum Bluetooth range is 10 m, and the device does not have an external memory slot or a 3.5 mm audio jack.

Final Verdict

The Samsung Galaxy Fit3 carves out a focused position in the fitness tracker category by prioritizing wearability, endurance, and practical daily health monitoring over advanced performance metrics. Its 13-day battery life paired with a 30-minute charge time removes one of the most common friction points of wearable devices, and the combination of IP68 and 5 ATM water resistance makes it a genuinely capable companion for swimmers and everyday active users alike. The comprehensive app ecosystem — covering sleep, nutrition, hydration, menstrual health, and coaching — adds meaningful depth beyond step counting, even if sensors like GPS, ECG, and body temperature tracking are absent. For Android users seeking a slim, long-lasting tracker with solid health fundamentals and a low-effort ownership experience, the Samsung Galaxy Fit3 delivers a well-rounded and reliable package within its intended scope.

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