Amazfit · 2021
GTS 3Size, Dimensions & Wrist Fit
Case Width
36mm
Thickness
8.8mm
Lug-to-Lug
42.4mm
Weight
24.4g
The Amazfit GTS 3 sits best on flat wrist widths of about 45–61mm (≈ 12.0–16.3cm wrist circumference). Adjust the slider below to check your wrist.
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The GTS 3 in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 20 hours and 480 hours per charge depending on the power mode — battery saver at best, gps at worst.
- Water rated to 50 m.
- 24.4g on the wrist. Lighter than 96% of the 36mm watches we have weights for.
- 1.75 inches OLED/AMOLED display, always-on capable.
- Takes 20mm bands, so third-party straps fit without an adapter.
Does the GTS 3 fit your wrist?
Drag the slider to your wrist width and see the GTS 3 overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Happy with the fit? Check current availability for the GTS 3.
Find it on AmazonHow long the GTS 3 lasts, by power mode
Runtime changes by a factor of 24 depending on what you leave switched on. Bars are scaled against the longest mode.
- Battery Saver480 hours
- Smartwatch12 days
- Training144 hours
- GPS20 hours
What size band does the GTS 3 take?
Lug width
20mm
Any 20mm strap fits, so you are not restricted to Amazfit's own bands. Quick-release pins let you swap without tools — check that a replacement lists 20mm and quick-release before buying.
Affiliate disclosure: As an Amazon Associate, WatchFitTool earns from qualifying purchases. If you buy through links on this page, we may earn a commission at no extra cost to you. Learn more.
GTS 3 specifications
The figures that decide a purchase, followed by every line Amazfit publishes.
- Battery life
- 12 days
- Display
- 1.75 inches
- Resolution
- 390 x 450 px
- Water rating
- 5 ATM
- Strap
- 20 mm
- Charging
- 2 hours
Full specification sheet
115 published lines across 8 groups, unedited
Design
- width
- 36
- height
- 42.4
- volume
- 13.43 cm³
- weight
- 24.4 g
- thickness
- 8.8
- ATM rating
- 5 ATM
- resolution
- 390 x 450 px
- screen size
- 1.75 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 341 ppi
- width of band
- 20 mm
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- waterproof depth rating
- 50 m
- Watch band is replaceable
- Has sapphire glass display
- has branded damage-resistant glass
Battery
- charge time
- 2 hours
- battery life
- 12 days
- battery power
- 250 mAh
- has wireless charging
- has a removable battery
- battery life with GPS on
- 20 hours
- Has a solar power battery
- has a rechargeable battery
- battery life in training mode
- 144 hours
- battery life in power save mode
- 480 hours
Sensors
- has GPS
- has a compass
- Has a barometer
- has a gyroscope
- Has a cadence sensor
- has an accelerometer
- Monitors perspiration
- Has a heart rate monitor
- Has a temperature sensor
- Monitors blood oxygenation levels
Features
- release date
- 2021-10-12
- Has a stopwatch
- Has smart alarm
- warranty period
- 1 years
- Has call control
- Has silent alarm
- has HRV tracking
- measures VO2 max
- Has notifications
- Has ECG technology
- Locates your phone
- has a front camera
- has fall detection
- has voice commands
- Acquires GPS faster
- Has vibrating alerts
- number of microphones
- 1
- shows readiness level
- Can be used to answer calls
- measures resting heart rate
- has irregular heart rate warnings
- has fast/slow heart rate notifications
- Has a built-in camera remote control function
Connectivity
- has NFC
- supports ANT+
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 5.1
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- has aptX
- Has passcode
- Has auto pause
- Is compatible with Windows
- Is compatible with Mac OS X
- has an external memory slot
- Compatible with smart scales
- has a battery level indicator
- has a socket for a 3.5 mm audio jack
- Compatible with external heart rate monitors
App & Software
- Ad-free
- Free app
- Tracks BMI
- Has coaching
- Includes maps
- Supports routes
- Has achievements
- Has goal setting
- Has live tracking
- Has exercise diary
- Predicts ovulation
- Can be personalised
- Has weight tracking
- Predicts start date
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Has temperature tracking
- Provides activity reports
- Displays fertile window notifications
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks elevation
- Designed for golf
- Tracks your sleep
- Tracks steps taken
- Designed for diving
- Has a route tracker
- Has exercise tagging
- Has multi-sport mode
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
- Has a stroke counter for swimming
Compare the GTS 3 head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the GTS 3.
Alternatives to the GTS 3
Watches that cover a similar amount of wrist, with the measurements that separate them.
Amazfit
GTS 4
- Width
- 36mm
- Thick
- 9.9mm
- Weight
- 27g
Amazfit
GTS 2 Mini (2022)
- Width
- 35.8mm
- Thick
- 8.95mm
- Weight
- 19.5g
Amazfit
GTS 2 Mini
- Width
- 35.8mm
- Thick
- 8.95mm
- Weight
- 19.5g
Amazfit
GTS
- Width
- 36.25mm
- Thick
- 9.4mm
- Weight
- 24.8g
Amazfit
GTS - global version
- Width
- 36.25mm
- Thick
- 9.4mm
- Weight
- 24.8g
Amazfit
Bip 3 Pro
- Width
- 36.4mm
- Thick
- 9.6mm
- Weight
- 33.2g
GTS 3 — Frequently Asked Questions
Will the Amazfit GTS 3 fit my wrist?
The Amazfit GTS 3 looks balanced on flat wrist widths of roughly 45–61mm (about 12.0–16.3cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Amazfit GTS 3 take?
20mm. Any 20mm strap fits, so you are not limited to Amazfit's own bands — look for a quick-release fitting if you want to swap without tools.
How long does the Amazfit GTS 3 battery last?
Between 20 hours and 480 hours per charge, depending on the power mode. Amazfit rates Battery Saver at 480 hours and GPS at 20 hours; the chart above lists all 4 modes.
Is the Amazfit GTS 3 thick for a 36mm watch?
At 8.8mm, thinner than 96% of 36mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the Amazfit GTS 3?
Zenith Defy Skyline 36 Stainless Steel - Diamond / Silver, Apple Watch Series 11 - GPS + Cellular · Aluminium · 42mm, TAG Heuer Aquaracer Professional 300 36 Stainless Steel / Blue Gradient - Diamond / Rubber, Tissot Seastar 1000 36 Quartz Stainless Steel - Rose Gold / Black / Bracelet all sit within half a millimetre of the Amazfit GTS 3's 36mm case, so they cover the same amount of wrist.
What is the lug-to-lug of the Amazfit GTS 3?
42.4mm, against a 36mm case width. Lug-to-lug is the measurement that decides overhang: if it exceeds the flat width of your wrist, the lugs sit past the edge no matter how modest the case diameter looks.
