Amazfit · 2019
Stratos 3Size, Dimensions & Wrist Fit
The Amazfit Stratos 3 sits best on flat wrist widths of about 51–69mm (≈ 13.6–18.4cm wrist circumference). Adjust the slider below to check your wrist.
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The Stratos 3 in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 70 hours and 336 hours per charge depending on the power mode — battery saver at best, gps at worst.
- Water rated to 50 m.
- 40.4g on the wrist. Lighter than 100% of the 49mm watches we have weights for.
- 1.34 inches LCD display, always-on capable.
- Takes 22mm bands, so third-party straps fit without an adapter.
Does the Stratos 3 fit your wrist?
Drag the slider to your wrist width and see the Stratos 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 Stratos 3.
Find it on AmazonHow long the Stratos 3 lasts, by power mode
Runtime changes by a factor of 5 depending on what you leave switched on. Bars are scaled against the longest mode.
- Battery Saver336 hours
- Smartwatch7 days
- GPS70 hours
What size band does the Stratos 3 take?
Lug width
22mm
Any 22mm 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 22mm and quick-release before buying.
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Stratos 3 specifications
The figures that decide a purchase, followed by every line Amazfit publishes.
- Battery life
- 7 days
- Display
- 1.34 inches
- Resolution
- 320 x 320 px
- Water rating
- 5 ATM
- Glass
- Gorilla Glass 3
- Strap
- 22 mm
- Storage
- 4GB
- Charging
- 2.5 hours
Full specification sheet
109 published lines across 8 groups, unedited
Design
- width
- 48.6
- height
- 48.6
- volume
- 31.65 cm³
- weight
- 40.4 g
- thickness
- 13.4
- ATM rating
- 5 ATM
- resolution
- 320 x 320 px
- screen size
- 1.34 inches
- Display type
- LCD
- Has a display
- pixel density
- 338 ppi
- width of band
- 22 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
- 2.5 hours
- battery life
- 7 days
- battery power
- 300 mAh
- has wireless charging
- has a removable battery
- battery life with GPS on
- 70 hours
- Has a solar power battery
- has a rechargeable battery
- battery life in power save mode
- 336 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
- RAM
- 0.5GB
- CPU speed
- 2 x 1.2 GHz
- release date
- 2019-08-27
- Has a stopwatch
- Has smart alarm
- Has call control
- Has silent alarm
- internal storage
- 4GB
- 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
- Can be used to answer calls
- has irregular heart rate warnings
- Has a built-in camera remote control function
Connectivity
- has NFC
- Wi-Fi version
- Wi-Fi 4 (802.11n)
- supports ANT+
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 4.2
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- has aptX
- Has passcode
- Can upload maps
- 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
- Supports routes
- Has achievements
- Has goal setting
- Has exercise diary
- Can be personalised
- Has weight tracking
- Predicts start date
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Has temperature tracking
- Provides activity reports
- 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 Stratos 3 head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the Stratos 3.
Alternatives to the Stratos 3
Watches that cover a similar amount of wrist, with the measurements that separate them.
Amazfit
T-Rex Pro
- Width
- 47.7mm
- Thick
- 13.5mm
- Weight
- 59.4g
Amazfit
Balance 2
- Width
- 47.4mm
- Thick
- 12.3mm
- Weight
- 43g
Amazfit
Pop 2
- Width
- 47.2mm
- Thick
- 12.9mm
- Weight
- 64g
Amazfit
Falcon
- Width
- 47.2mm
- Thick
- 13mm
- Weight
- 64g
Amazfit
GTR
- Width
- 47.2mm
- Thick
- 10.75mm
- Weight
- 48g
Amazfit
Active Edge
- Width
- 46.6mm
- Thick
- 12mm
- Weight
- 34g
Stratos 3 — Frequently Asked Questions
Will the Amazfit Stratos 3 fit my wrist?
The Amazfit Stratos 3 looks balanced on flat wrist widths of roughly 51–69mm (about 13.6–18.4cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Amazfit Stratos 3 take?
22mm. Any 22mm 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 Stratos 3 battery last?
Between 70 hours and 336 hours per charge, depending on the power mode. Amazfit rates Battery Saver at 336 hours and GPS at 70 hours; the chart above lists all 3 modes.
Is the Amazfit Stratos 3 thick for a 49mm watch?
At 13.4mm, 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 Stratos 3?
Huawei Watch Ultimate 2, Boult Audio Sterling Pro, Kospet Tank T2, Tissot Lepine Quartz all sit within half a millimetre of the Amazfit Stratos 3's 48.6mm case, so they cover the same amount of wrist.
