WatchFitTool
Amazfit GTR Mini — case dimensions and design

Amazfit · 2023

GTR Mini Size, Dimensions & Wrist Fit

Case Width

42.8mm

Thickness

9.25mm

Battery

14 days

Weight

36.2g

The GTR Mini looks in proportion on wrists of 15 cm (5.9 in) and up round, and fills the wrist at 16–18 cm (lug-to-lug estimated at ≈49mm; Amazfit does not publish it).

Check Wrist FitCompareCheck offer

As an Amazon Associate, WatchFitTool earns from qualifying purchases.

Does the GTR Mini fit your wrist?

Wrist round (mm left each side)42.8mm≈49mm lug to lug, est.
14 cm / 5.5 inOverhangs (1.9mm over)
15 cm / 5.9 inOverhangs (0.3mm over)
16 cm / 6.3 inSweet spot (1.3mm)
17 cm / 6.7 inSweet spot (2.9mm)
18 cm / 7.1 inBalanced (4.5mm)
19 cm / 7.5 inBalanced (6.1mm)
20 cm / 7.9 inBalanced (7.8mm)

How the fit model works · Size chart for every wrist

The GTR Mini in short

  • Between 25 hours and 30 days per charge depending on the power mode — battery saver at best, gps at worst.
  • Water rated to 5 ATM.
  • 9.25mm thick. Thinner than 96% of the 48 smartwatches 43mm across that we track, so it slides under a cuff more easily than most of its size.
  • 1.28 inches AMOLED display, always-on capable.
  • Takes 20mm bands, so third-party straps fit without an adapter.

Compare with another watch

Size, fit and battery side by side, against any smartwatch we list.

↑ ↓ to move · Enter to open the comparison · Esc to close

GTR Mini battery life

Runtime by power mode

  • Battery Saver30 days
  • Smartwatch14 days
  • Heavy use168 hours
  • GPS25 hours
Charges in 2 hours

Where it ranks among Amazfit watches

  • Everyday use14 days#16 of 54
  • GPS tracking25 hours#18 of 29
  • Power save30 days#8 of 25
  • Capacity280 mAh#31 of 52
See all 54 Amazfit watches ranked by battery life

2D Dimension Schematics

Top view
Side view
  • Amazfit GTR Mini 42.8mm × ≈49mm (est.) · 9.3mm thick

3D preview

Amazfit GTR Mini on a wrist

Open 3D try-on

What size band does the GTR Mini take?

Lug width

20mm

Standard spring-bar lugs: any 20mm strap with quick-release pins fits, Amazfit's or anyone else's.

GTR Mini — Frequently Asked Questions

Is the Amazfit GTR Mini thick for a 43mm watch?

At 9.25mm, thinner than 96% of the 48 smartwatches 43mm across that we track, so it slides under a cuff more easily than most of its size.

GTR Mini specifications

Battery life
14 days
Display
1.28 inches
Resolution
416 x 416 px
Water rating
5 ATM
Strap
20 mm
Charging
2 hours
Show all specificationsAmazfit's published specification, for reference · checked September 2026

Design

width
42.8
height
42.8
volume
16.94 cm³
weight
36.2 g
thickness
9.25
ATM rating
5 ATM
resolution
416 x 416 px
screen size
1.28 inches
Display type
OLED/AMOLED
Has a display
Yes
pixel density
326 ppi
width of band
20 mm
water resistance
Water resistant
Always-On Display
Yes
has a touch screen
Yes
Watch band is replaceable
Yes
Has sapphire glass display
No
Ingress Protection (IP) rating
IP68
has branded damage-resistant glass
No

Battery

charge time
2 hours
battery life
14 days
battery power
280 mAh
has wireless charging
Yes
has a removable battery
No
battery life with GPS on
25 hours
Has a solar power battery
No
has a rechargeable battery
Yes
battery life in training mode
168 hours
battery life in power save mode
720 hours

Sensors

has GPS
Yes
has a compass
Yes
Has a barometer
No
has a gyroscope
Yes
Has a cadence sensor
No
has an accelerometer
Yes
Monitors perspiration
No
Has a heart rate monitor
Yes
Has a temperature sensor
No
Monitors blood oxygenation levels
Yes

Features

release date
2023-03-16
Has a stopwatch
Yes
Has smart alarm
No
warranty period
1 years
Has call control
Yes
Has silent alarm
Yes
measures VO2 max
Yes
Has notifications
Yes
Has ECG technology
No
Locates your phone
Yes
has fall detection
No
has voice commands
No
Has vibrating alerts
Yes
shows readiness level
Yes
Can be used to answer calls
No
measures resting heart rate
Yes
has irregular heart rate warnings
No
Has a built-in camera remote control function
Yes

Connectivity

has NFC
No
supports ANT+
Yes
supports Wi-Fi
No
supports Galileo
Yes
Bluetooth version
5.2
has a cellular module
No
Is compatible with iOS
Yes
Is compatible with Android
Yes

Miscellaneous

Has passcode
Yes
Has auto pause
Yes
Is compatible with Windows
No
Is compatible with Mac OS X
No
Compatible with smart scales
Yes
has a battery level indicator
Yes
has a socket for a 3.5 mm audio jack
No
Compatible with external heart rate monitors
Yes

App & Software

Ad-free
Yes
Free app
Yes
Tracks BMI
Yes
Has coaching
Yes
Includes maps
Yes
Supports routes
Yes
Has achievements
Yes
Has goal setting
Yes
Has live tracking
Yes
Has exercise diary
Yes
Predicts ovulation
Yes
Can be personalised
Yes
Has weight tracking
Yes
Predicts start date
Yes
Tracks water intake
Yes
Has inactivity alerts
Yes
Has period notifications
Yes
Has temperature tracking
No
Provides activity reports
Yes
Displays fertile window notifications
Yes
Counts how many calories you've burned
Yes

Activity tracking

Measures pace
Yes
Tracks distance
Yes
Tracks elevation
No
Designed for golf
No
Tracks your sleep
Yes
Tracks steps taken
Yes
Designed for diving
No
Has a route tracker
Yes
Has exercise tagging
Yes
Has multi-sport mode
No
Tracks calorie intake
Yes
Provides sleep reports
Yes
Detects activities automatically
Yes
Has a stroke counter for swimming
No
← All Amazfit watchesAmazfit watches 40–44mm →Amazfit battery life compared →Browse all brandsHow watch sizing works →Compare watch sizes →