WatchFitTool
Fossil Dive HR — case dimensions and design

Fossil · 2020

Dive HR Size, Dimensions & Wrist Fit

Case Width

44mm

Thickness

—

Battery

21 days

Weight

—

The Dive HR looks in proportion on wrists of 15.5 cm (6.1 in) and up round, and fills the wrist at 16.5–18.5 cm (lug-to-lug estimated at ≈50.5mm; Fossil does not publish it).

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Does the Dive HR fit your wrist?

Wrist round (mm left each side)44mm≈50.5mm lug to lug, est.
14 cm / 5.5 inOverhangs (2.7mm over)
15 cm / 5.9 inOverhangs (1.1mm over)
16 cm / 6.3 inBold (0.6mm)
17 cm / 6.7 inSweet spot (2.2mm)
18 cm / 7.1 inSweet spot (3.8mm)
19 cm / 7.5 inBalanced (5.4mm)
20 cm / 7.9 inBalanced (7mm)

How the fit model works · Size chart for every wrist

The Dive HR in short

  • Rated for 21 days of use per charge.
  • Water rated to 30 m.
  • LCD display, always-on capable.

Compare with another watch

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

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Dive HR battery life

Published runtime

  • Battery life21 days

Where it ranks among Fossil watches

  • Everyday use21 days#7 of 22
  • Capacity55 mAh#13 of 14
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
  • Fossil Dive HR 44mm × ≈50.5mm (est.)

Dive HR specifications

Battery life
21 days
Display
LCD
Water rating
Waterproof
Storage
16MB
Show all specificationsFossil's published specification, for reference · checked September 2026

Design

width
44
height
44
Display type
LCD
Has a display
No
water resistance
Waterproof
Always-On Display
Yes
has a touch screen
No
waterproof depth rating
30 m
Watch band is replaceable
Yes
Has sapphire glass display
No
has branded damage-resistant glass
No

Battery

battery life
21 days
battery power
55 mAh
has wireless charging
No
has a removable battery
No
Has a solar power battery
No
has a rechargeable battery
Yes

Sensors

has GPS
No
has a compass
No
Has a barometer
No
has a gyroscope
No
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
No

Features

release date
2020-01-09
Has a stopwatch
Yes
Has smart alarm
No
Has call control
No
Has silent alarm
Yes
internal storage
16MB
Has notifications
Yes
Locates your phone
Yes
has a front camera
No
has voice commands
No
Acquires GPS faster
No
Has vibrating alerts
Yes
Can be used to answer calls
No
Has a built-in camera remote control function
Yes

Connectivity

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

Miscellaneous

Has passcode
No
Has auto pause
No
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
No
Tracks water intake
No
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
No
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
No
Has exercise tagging
Yes
Has multi-sport mode
Yes
Tracks calorie intake
No
Provides sleep reports
Yes
Detects activities automatically
Yes
Has a stroke counter for swimming
No