Amazfit · 2020
Zepp ZSize, Dimensions & Wrist Fit
The Amazfit Zepp Z sits best on flat wrist widths of about 48–66mm (≈ 12.8–17.6cm wrist circumference). Adjust the slider below to check your wrist.
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The Zepp Z in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 15 days of use per charge.
- Water rated to Water resistant.
- 40g on the wrist. Lighter than 86% of the 46mm 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 Zepp Z fit your wrist?
Drag the slider to your wrist width and see the Zepp Z 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 Zepp Z
Case 45.9mm · Lug-to-lug 45.9mm · Thickness 10.7mm · 40g
Balanced Fit
45.9mm 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 45.9mm, 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 wrist4.6mm spare each side
Comfortable, with visible skin either side.
- Off the wrist10.7mm off the skin
Normal sports-watch height for a wrist this size. (10.7mm case, back against the skin)
- How it seats~5.6mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist40g
Light enough to forget you have it on. (0.7g per mm of wrist)
Happy with the fit? Check current availability for the Zepp Z.
Check offer2D Dimension Schematics
The Zepp Z drawn to scale — from above, and in profile against the wrist.
- Amazfit Zepp Z45.9mm · 10.7mm thick
3D preview
Amazfit Zepp Z 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.
Zepp Z battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch15 days
How the Zepp Z ranks on battery
Against the 54 Amazfit watches in our database, ranked on each figure Amazfit publishes.
- Everyday use15 days#11 of 54
- Capacity340 mAh#21 of 52
What size band does the Zepp Z 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.
Zepp Z specifications
The figures that decide a purchase, followed by every line Amazfit publishes.
- Battery life
- 15 days
- Display
- 1.39 inches
- Resolution
- 454 x 454 px
- Water rating
- Water resistant
- Strap
- 22 mm
Full specification sheet
86 published lines across 8 groups, unedited
Design
- width
- 45.9
- height
- 45.9
- volume
- 22.54 cm³
- weight
- 40 g
- thickness
- 10.7
- resolution
- 454 x 454 px
- screen size
- 1.39 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 462 ppi
- width of band
- 22 mm
- water resistance
- Water resistant
- Always-On Display
- has a touch screen
- Watch band is replaceable
- Has sapphire glass display
- Ingress Protection (IP) rating
- IP68
- has branded damage-resistant glass
Battery
- battery life
- 15 days
- battery power
- 340 mAh
- has wireless charging
- has a removable battery
- Has a solar power battery
- has a rechargeable battery
Sensors
- has GPS
- 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
- release date
- 2020-11-18
- Has a stopwatch
- Has smart alarm
- Has call control
- Has silent alarm
- Has notifications
- Has ECG technology
- Locates your phone
- 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
- supports ANT+
- supports Wi-Fi
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- Has passcode
- Is compatible with Windows
- Is compatible with Mac OS X
- 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
- Has period notifications
- Provides activity reports
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- 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 Zepp Z
Watches that cover a similar amount of wrist, with the measurements that separate them.
Amazfit
Balance
- Width
- 46mm
- Thick
- 10.6mm
- Weight
- 35g
Amazfit
GTR 4 Limited Edition
- Width
- 46mm
- Thick
- 11.2mm
- Weight
- 49g
Amazfit
GTR 3 Pro
- Width
- 46mm
- Thick
- 10.7mm
- Weight
- 32g
Amazfit
GTR 3
- Width
- 45.8mm
- Thick
- 10.8mm
- Weight
- 32g
Amazfit
GTR 4
- Width
- 46mm
- Thick
- 10.6mm
- Weight
- 34g
Amazfit
Stratos Plus
- Width
- 45.7mm
- Thick
- 12.7mm
- Weight
- 60g
Zepp Z — Frequently Asked Questions
Will the Amazfit Zepp Z fit my wrist?
The Amazfit Zepp Z looks balanced on flat wrist widths of roughly 48–66mm (about 12.8–17.6cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Amazfit Zepp Z 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 Zepp Z battery last?
Amazfit rates it at 15 days per charge in everyday use.
How does the Amazfit Zepp Z battery compare with other Amazfit watches?
At 15 days in everyday use it ranks #11 of the 54 Amazfit watches in our database — the top 20% of the range. The full ranking, including GPS and power-saving figures, is on our Amazfit battery life comparison.
Is the Amazfit Zepp Z thick for a 46mm watch?
At 10.7mm, thinner than 97% of 46mm 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 Zepp Z?
Honor Watch 5 Pro - Bluetooth, Huawei Watch GT 6 - 46mm, Samsung Galaxy Watch8 LTE Classic, Garmin Descent™ G2 all sit within half a millimetre of the Amazfit Zepp Z's 45.9mm case, so they cover the same amount of wrist.
