Fossil Gen 6 42mm — case dimensions and design

Fossil · 2021

Gen 6 42mm Size, Dimensions & Wrist Fit

Case Width

42mm

Thickness

12mm

Battery

2 days

Weight

—

The Gen 6 42mm looks in proportion on wrists of 15 cm (5.9 in) and up round, and fills the wrist at 16–17.5 cm (lug-to-lug estimated at ≈48.5mm; Fossil does not publish it).

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Does the Gen 6 42mm fit your wrist?

The 42mm suits wrists of about 15 cm and up round; the 44mm, 15.5 cm and up. Both work from 15.5 to 21.5 cm, where it is a choice between more skin either side (the 42mm) and a case that fills the wrist (the 44mm). Under 15.5 cm only the 42mm's lugs stay on the wrist.

Wrist round (mm left each side)	42mm≈48.5mm lug to lug, est.	44mm≈50.5mm lug to lug, est.
14 cm / 5.5 in	Overhangs (1.7mm over)	Overhangs (2.7mm over)
15 cm / 5.9 in	Overhangs (0.1mm over)	Overhangs (1.1mm over)
16 cm / 6.3 in	Sweet spot (1.6mm)	Bold (0.6mm)
17 cm / 6.7 in	Sweet spot (3.2mm)	Sweet spot (2.2mm)
18 cm / 7.1 in	Balanced (4.8mm)	Sweet spot (3.8mm)
19 cm / 7.5 in	Balanced (6.4mm)	Balanced (5.4mm)
20 cm / 7.9 in	Balanced (8mm)	Balanced (7mm)

How the fit model works · Size chart for every wrist

Which Gen 6 size fits you?

42mmViewing

42mm · 12mm thick

44mm · 12mm thick · 43g

The Gen 6 42mm in short

The 44mm version is 2mm wider.
Rated for 2 days of use per charge.
Water resistant; no depth rating published.
1.6 inches AMOLED display.
Takes 18mm bands, so third-party straps fit without an adapter.

Compare the Gen 6 42mm head to head

Fossil

Gen 6 44mm

2mm wider · same thickness

Compare with another watch

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

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Gen 6 42mm battery life

Published runtime

Battery life2 days

Charges in 1 hours

Where it ranks among Fossil watches

Everyday use2 days#12 of 22
Capacity310 mAh#3 of 14

Top three in the Fossil range for battery capacity.

See all 22 Fossil 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

Fossil Gen 6 42mm 42mm × ≈48.5mm (est.) · 12mm thick

3D preview

Fossil Gen 6 42mm on a wrist

What size band does the Gen 6 42mm take?

Lug width

18mm

Alternatives to the Gen 6 42mm

Gen 6 42mm specifications

Battery life: 2 days
Display: 1.6 inches
Resolution: 416 x 416 px
Water rating: Water resistant
Strap: 18 mm
Storage: 8GB
Charging: 1 hours

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

Design

width: 42
height: 42
volume: 21.17 cm³
thickness: 12
resolution: 416 x 416 px
screen size: 1.6 inches
Display type: OLED/AMOLED
Has a display: Yes
pixel density: 356 ppi
width of band: 18 mm
water resistance: Water resistant
Always-On Display: No
has a touch screen: Yes
Watch band is replaceable: Yes
Has sapphire glass display: No
has branded damage-resistant glass: No

Battery

charge time: 1 hours
battery life: 2 days
battery power: 310 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 compass: Yes
Has a barometer: No
has a gyroscope: Yes
Has a cadence sensor: 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

RAM: 1GB
release date: 2021-08-31
Has a stopwatch: Yes
Has smart alarm: No
warranty period: 1 years
Has call control: Yes
Has silent alarm: Yes
internal storage: 8GB
Has notifications: Yes
Has ECG technology: No
Locates your phone: Yes
has a front camera: No
has fall detection: No
has voice commands: Yes
Acquires GPS faster: No
Has vibrating alerts: Yes
number of microphones: 1
Can be used to answer calls: Yes
has irregular heart rate warnings: No
Has a built-in camera remote control function: No

Connectivity

has NFC: Yes
supports ANT+: No
supports Wi-Fi: Yes
supports Galileo: No
Bluetooth version: 5
has a cellular module: No
Is compatible with iOS: Yes
Is compatible with Android: Yes

Miscellaneous

has aptX: No
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

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: 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: Yes
Has a stroke counter for swimming: Yes

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