Amazfit Zepp Z — case dimensions and design

Amazfit · 2020

Zepp Z Size, Dimensions & Wrist Fit

Case Width

45.9mm

Thickness

10.7mm

Battery

15 days

Weight

40g

The Zepp Z looks in proportion on wrists of 16.5 cm (6.5 in) and up round, and fills the wrist at 17.5–19.5 cm (lug-to-lug estimated at ≈53mm; Amazfit does not publish it).

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Does the Zepp Z fit your wrist?

Wrist round (mm left each side)	45.9mm≈53mm lug to lug, est.
14 cm / 5.5 in	Overhangs (3.9mm over)
15 cm / 5.9 in	Overhangs (2.3mm over)
16 cm / 6.3 in	Overhangs (0.7mm over)
17 cm / 6.7 in	Bold (0.9mm)
18 cm / 7.1 in	Sweet spot (2.5mm)
19 cm / 7.5 in	Sweet spot (4.1mm)
20 cm / 7.9 in	Balanced (5.8mm)

How the fit model works · Size chart for every wrist

The Zepp Z in short

At 10.7mm, the joint 3rd thinnest of the 14 Amazfit watches 45–47mm across.
40g on the wrist. Lighter than 85% of the 75 smartwatches 46mm across that we have weights for.

Compare with another watch

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

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Zepp Z battery life

Published runtime

Battery life15 days

Where it ranks among Amazfit watches

Everyday use15 days#12 of 54
Capacity340 mAh#21 of 52

See all 54 Amazfit watches ranked by battery life

Settings, the 24-hour idle test and known firmware drains →

2D Dimension Schematics

Top view

Side view

Amazfit Zepp Z 45.9mm × ≈53mm (est.) · 10.7mm thick

3D preview

Amazfit Zepp Z on a wrist

What size band does the Zepp Z take?

Lug width

22mm

Alternatives to the Zepp Z

Zepp Z — Frequently Asked Questions

Is the Amazfit Zepp Z thick for a 46mm watch?

At 10.7mm, thinner than 94% of the 78 smartwatches 46mm across that we track, so it slides under a cuff more easily than most of its size.

Zepp Z specifications

Battery life: 15 days
Display: 1.39 inches
Resolution: 454 x 454 px
Water rating: Water resistant
Strap: 22 mm

Show all specificationsAmazfit's published specification, for reference · checked September 2026

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: Yes
pixel density: 462 ppi
width of band: 22 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: Yes

Battery

battery life: 15 days
battery power: 340 mAh
has wireless charging: Yes
has a removable battery: No
Has a solar power battery: No
has a rechargeable battery: Yes

Sensors

has GPS: Yes
Has a barometer: No
has a gyroscope: 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: 2020-11-18
Has a stopwatch: Yes
Has smart alarm: No
Has call control: No
Has silent alarm: Yes
Has notifications: Yes
Has ECG technology: No
Locates your phone: No
has fall detection: No
has voice commands: No
Acquires GPS faster: No
Has vibrating alerts: Yes
Can be used to answer calls: No
has irregular heart rate warnings: No
Has a built-in camera remote control function: No

Connectivity

has NFC: No
supports ANT+: No
supports Wi-Fi: No
has a cellular module: No
Is compatible with iOS: Yes
Is compatible with Android: Yes

Miscellaneous

Has passcode: Yes
Is compatible with Windows: No
Is compatible with Mac OS X: No
has an external memory slot: No
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
Supports routes: Yes
Has achievements: Yes
Has goal setting: Yes
Has exercise diary: Yes
Can be personalised: Yes
Has weight tracking: Yes
Predicts start date: Yes
Has period notifications: Yes
Provides activity reports: Yes
Counts how many calories you've burned: Yes

Activity tracking

Measures pace: Yes
Tracks distance: Yes
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: No
Has a stroke counter for swimming: No

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