Amazfit · 2019
GTSSize, Dimensions & Wrist Fit
Case Width
36.25mm
Thickness
9.4mm
Lug-to-Lug
43.25mm
Weight
24.8g
The Amazfit GTS sits best on flat wrist widths of about 46–62mm (≈ 12.3–16.6cm wrist circumference). Adjust the slider below to check your wrist.
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The GTS in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 25 hours and 1104 hours per charge depending on the power mode — battery saver at best, gps at worst.
- Water rated to 50 m.
- 24.8g on the wrist. Lighter than 89% of the 36mm watches we have weights for.
- 1.65 inches OLED/AMOLED display, always-on capable.
- Takes 20mm bands, so third-party straps fit without an adapter.
Does the GTS fit your wrist?
Drag the slider to your wrist width and see the GTS overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Amazfit GTS
Case 43.3mm · Lug-to-lug 43.3mm · Thickness 9.4mm · 25g
Balanced Fit
43.3mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 43.3mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist5.9mm spare each side
Comfortable, with visible skin either side.
- Off the wrist9.4mm off the skin
Sits low enough to disappear under a cuff. (9.4mm case, back against the skin)
- How it seats~4.5mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist25g
Light enough to forget you have it on. (0.5g per mm of wrist)
Happy with the fit? Check current availability for the GTS.
Check offer2D Dimension Schematics
The GTS drawn to scale — from above, and in profile against the wrist.
- Amazfit GTS36.3mm × 43.3mm · 9.4mm thick
3D preview
Amazfit GTS on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
How long the GTS lasts, by power mode
Runtime changes by a factor of 44 depending on what you leave switched on. Bars are scaled against the longest mode.
- Battery Saver1104 hours
- Smartwatch14 days
- GPS25 hours
How the GTS ranks on battery
Against the 54 Amazfit watches in our database, ranked on each figure Amazfit publishes.
- Everyday use14 days#13 of 54
- GPS tracking25 hours#16 of 29
- Power save46 days#4 of 25
- Capacity220 mAh#44 of 52
What size band does the GTS 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 specifications
The figures that decide a purchase, followed by every line Amazfit publishes.
- Battery life
- 14 days
- Display
- 1.65 inches
- Resolution
- 348 x 442 px
- Water rating
- 5 ATM
- Glass
- Gorilla Glass 3
- Strap
- 20 mm
- Charging
- 2 hours
Full specification sheet
115 published lines across 8 groups, unedited
Design
- width
- 36.25
- height
- 43.25
- volume
- 14.74 cm³
- weight
- 24.8 g
- thickness
- 9.4
- ATM rating
- 5 ATM
- resolution
- 348 x 442 px
- screen size
- 1.65 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
- Gorilla Glass version
- Gorilla Glass 3
- 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
- 14 days
- battery power
- 220 mAh
- has wireless charging
- has a removable battery
- battery life with GPS on
- 25 hours
- Has a solar power battery
- has a rechargeable battery
- battery life in power save mode
- 1104 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
- 2019-10-12
- 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
- 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
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- has aptX
- Has passcode
- Has auto pause
- maximum Bluetooth range
- 10 m
- 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
Alternatives to the GTS
Watches that cover a similar amount of wrist, with the measurements that separate them.
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
Amazfit
Bip 3
- Width
- 36.49mm
- Thick
- 9.65mm
- Weight
- 33.2g
Amazfit
GTS 4
- Width
- 36mm
- Thick
- 9.9mm
- Weight
- 27g
Amazfit
GTS 3
- Width
- 36mm
- Thick
- 8.8mm
- Weight
- 24.4g
Amazfit
GTS 4 Mini
- Width
- 36.66mm
- Thick
- 9.1mm
- Weight
- 19g
GTS — Frequently Asked Questions
Will the Amazfit GTS fit my wrist?
The Amazfit GTS looks balanced on flat wrist widths of roughly 46–62mm (about 12.3–16.6cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Amazfit GTS 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 battery last?
Between 25 hours and 1104 hours per charge, depending on the power mode. Amazfit rates Battery Saver at 1104 hours and GPS at 25 hours; the chart above lists all 3 modes.
How does the Amazfit GTS battery compare with other Amazfit watches?
At 14 days in everyday use it ranks #13 of the 54 Amazfit watches in our database — the top 24% of the range. The full ranking, including GPS and power-saving figures, is on our Amazfit battery life comparison.
Is the Amazfit GTS thick for a 36mm watch?
At 9.4mm, middle of the pack for thickness at this width. 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?
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's 36.25mm case, so they cover the same amount of wrist.
What is the lug-to-lug of the Amazfit GTS?
43.25mm, against a 36.25mm 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.
