TAG Heuer Calibre E3 — case dimensions and design

TAG Heuer · 2020

Calibre E3 Size, Dimensions & Wrist Fit

Case Width

45mm

Thickness

15.3mm

Battery

1 day

Weight

—

The Calibre E3 looks in proportion on wrists of 16 cm (6.3 in) and up round, and fills the wrist at 17–19 cm (lug-to-lug estimated at ≈51.5mm; TAG Heuer does not publish it).

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Does the Calibre E3 fit your wrist?

Wrist round (mm left each side)	45mm≈51.5mm lug to lug, est.
14 cm / 5.5 in	Overhangs (3.2mm over)
15 cm / 5.9 in	Overhangs (1.6mm over)
16 cm / 6.3 in	Bold (0.1mm)
17 cm / 6.7 in	Sweet spot (1.7mm)
18 cm / 7.1 in	Sweet spot (3.3mm)
19 cm / 7.5 in	Balanced (4.9mm)
20 cm / 7.9 in	Balanced (6.5mm)

How the fit model works · Size chart for every wrist

The Calibre E3 in short

Replaced by the Calibre E4, which is 0.2mm thinner.
At 15.3mm, the 3rd thickest of the 12 TAG Heuer watches 44–46mm across.

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

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Calibre E3 battery life

Published runtime

Battery life1 day

Charges in 1.5 hours

Where it ranks among TAG Heuer watches

Everyday use24 hours#4 of 8
Capacity430 mAh#3 of 8

Top three in the TAG Heuer range for battery capacity.

See all 8 TAG Heuer watches ranked by battery life

Settings to change and the 24-hour idle test are on the battery check.

2D Dimension Schematics

Top view

Side view

TAG Heuer Calibre E3 45mm × ≈51.5mm (est.) · 15.3mm thick

3D preview

TAG Heuer Calibre E3 on a wrist

Open 3D try-on

What size band does the Calibre E3 take?

Lug width

22mm

Alternatives to the Calibre E3

Calibre E3 specifications

Battery life: 1 days
Display: 1.39 inches
Resolution: 454 x 454 px
Water rating: Waterproof
Strap: 22 mm
Charging: 1.5 hours

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

Design

width: 45
height: 45
volume: 30.98 cm³
thickness: 15.3
resolution: 454 x 454 px
screen size: 1.39 inches
Display type: OLED/AMOLED
Has a display: Yes
pixel density: 326 ppi
width of band: 22 mm
water resistance: Waterproof
Always-On Display: No
has a touch screen: Yes
waterproof depth rating: 50 m
Watch band is replaceable: Yes
Has sapphire glass display: Yes
has branded damage-resistant glass: No

Battery

charge time: 1.5 hours
battery life: 1 days
battery power: 430 mAh
has wireless charging: Yes
has a removable battery: No
Has a solar power battery: No
has a rechargeable battery: Yes

Sensors

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

Features

CPU speed: 4 x 0.3 GHz
release date: 2020-02-10
Has a stopwatch: Yes
Has smart alarm: No
warranty period: 2 years
Has call control: Yes
Has silent alarm: Yes
Has notifications: Yes
Has ECG technology: No
has voice commands: No
Acquires GPS faster: No
Has vibrating alerts: Yes
number of microphones: 1
Can be used to answer calls: No
has irregular heart rate warnings: No

Connectivity

has NFC: Yes
supports Wi-Fi: Yes
Bluetooth version: 4.1
has a cellular module: No
Is compatible with iOS: Yes
Is compatible with Android: Yes

Miscellaneous

Has passcode: Yes
Is compatible with Windows: Yes
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

App & Software

Ad-free: Yes
Free app: Yes
Has coaching: No
Supports routes: No
Has achievements: Yes
Has goal setting: Yes
Has exercise diary: Yes
Can be personalised: Yes
Has weight tracking: Yes
Tracks water intake: Yes
Has inactivity alerts: Yes
Has temperature tracking: No
Doesn’t require account: No
Provides activity reports: 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

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