Amazfit · 2019
NexoSize, Dimensions & Wrist Fit
The Amazfit Nexo sits best on flat wrist widths of about 37–51mm (≈ 9.9–13.6cm wrist circumference). Adjust the slider below to check your wrist.
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The Nexo in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 28 days of use per charge.
- Water rated to 50 m.
- 49g on the wrist. Heavier than 86% of the 35mm watches we have weights for.
- 1.39 inches OLED/AMOLED display, always-on capable.
- Takes 22mm bands, so third-party straps fit without an adapter.
Does the Nexo fit your wrist?
Drag the slider to your wrist width and see the Nexo 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 Nexo
Case 35.4mm · Lug-to-lug 35.4mm · Thickness 13.7mm · 49g
Understated
35.4mm on a 55mm wrist
Across the wrist it works — 9.8mm spare each side — but a tall watch on this wrist. Fine over a sleeve, awkward under one.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 35.4mm, 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 wrist9.8mm spare each side
Comfortable, with visible skin either side.
- Off the wrist13.7mm off the skin
A tall watch on this wrist. Fine over a sleeve, awkward under one. (13.7mm case, back against the skin)
- How it seats~2.3mm under the rim
Sits flat on the wrist with contact right across the case back.
- Weight on the wrist49g
Light enough to forget you have it on. (0.9g per mm of wrist)
Happy with the fit? Check current availability for the Nexo.
Check offer2D Dimension Schematics
The Nexo drawn to scale — from above, and in profile against the wrist.
- Amazfit Nexo35.4mm · 13.7mm thick
3D preview
Amazfit Nexo 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.
Nexo battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch28 days
How the Nexo ranks on battery
Against the 54 Amazfit watches in our database, ranked on each figure Amazfit publishes.
- Everyday use28 days#4 of 54
- Capacity420 mAh#12 of 52
What size band does the Nexo 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.
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.
Nexo specifications
The figures that decide a purchase, followed by every line Amazfit publishes.
- Battery life
- 28 days
- Display
- 1.39 inches
- Resolution
- 454 x 454 px
- Water rating
- Waterproof
- Strap
- 22 mm
- Storage
- 1GB
- Charging
- 1.5 hours
Full specification sheet
99 published lines across 8 groups, unedited
Design
- width
- 35.4
- height
- 35.4
- volume
- 17.17 cm³
- weight
- 49 g
- thickness
- 13.7
- resolution
- 454 x 454 px
- screen size
- 1.39 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 326 ppi
- width of band
- 22 mm
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- waterproof depth rating
- 50 m
- Watch band is replaceable
- Has sapphire glass display
- Ingress Protection (IP) rating
- IP68
- has branded damage-resistant glass
Battery
- charge time
- 1.5 hours
- battery life
- 28 days
- battery power
- 420 mAh
- has wireless charging
- has a removable battery
- Has a solar power battery
- has a rechargeable battery
Sensors
- has GPS
- has a compass
- Has a barometer
- has a gyroscope
- has an accelerometer
- Monitors perspiration
- Has a heart rate monitor
- Has a temperature sensor
- Monitors blood oxygenation levels
Features
- RAM
- 0.51GB
- release date
- 2019-10-02
- Has a stopwatch
- Has smart alarm
- Has call control
- Has silent alarm
- internal storage
- 1GB
- Has notifications
- Has ECG technology
- Locates your phone
- has fall detection
- has voice commands
- Acquires GPS faster
- Has vibrating alerts
- number of microphones
- 1
- Can be used to answer calls
- has irregular heart rate warnings
- Has a built-in camera remote control function
Connectivity
- has NFC
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 4.2
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- Has passcode
- maximum Bluetooth range
- 10 m
- Is compatible with Windows
- Is compatible with Mac OS X
- has an ambient light sensor
- has an external memory slot
- 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
Alternatives to the Nexo
Watches that cover a similar amount of wrist, with the measurements that separate them.
Amazfit
Smartwatch 2 ECG
- Width
- 35.4mm
- Thick
- 13.7mm
- Weight
- 49g
Amazfit
Smartwatch 2
- Width
- 35.4mm
- Thick
- 13.7mm
- Weight
- 49g
Amazfit
Bip U Pro
- Width
- 35.5mm
- Thick
- 11.4mm
- Weight
- 31g
Amazfit
Pop Pro
- Width
- 35.5mm
- Thick
- 11.4mm
- Weight
- 31g
Amazfit
Pop
- Width
- 35.5mm
- Thick
- 11.4mm
- Weight
- 31g
Amazfit
Bip U
- Width
- 35.5mm
- Thick
- 11.4mm
- Weight
- 31g
Nexo — Frequently Asked Questions
Will the Amazfit Nexo fit my wrist?
The Amazfit Nexo looks balanced on flat wrist widths of roughly 37–51mm (about 9.9–13.6cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Amazfit Nexo 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 Nexo battery last?
Amazfit rates it at 28 days per charge in everyday use.
How does the Amazfit Nexo battery compare with other Amazfit watches?
At 28 days in everyday use it ranks #4 of the 54 Amazfit watches in our database — the top 7% of the range. The full ranking, including GPS and power-saving figures, is on our Amazfit battery life comparison.
Is the Amazfit Nexo thick for a 35mm watch?
At 13.7mm, thicker than 96% of 35mm watches — it will sit noticeably high on the wrist. 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 Nexo?
Apple Watch Series 11 - GPS + Cellular · Titanium · 42mm, Certina DS Action Quartz 34.5 Stainless Steel - Yellow Gold / MOP / Bracelet, Tissot PRX Quartz 35 Stainless Steel / Red, Garmin Lily® 2 all sit within half a millimetre of the Amazfit Nexo's 35.4mm case, so they cover the same amount of wrist.
