Fasting Widget for Garmin devices

This Fasting Widget for Garmin devices allows you to keep track of your fast right on your wrist.

Sections

Features

Set yourself a goal by choosing from various popular fast lengths, set up to 3 personal goal durations or fast freely without any commitment
Keep track of your fast's duration and how long you have left until you meet your goal.
Get an estimate of your real-time calorie burn based on implementations of BMR and activity formulas (see section Real-time Calories Estimation for details)
Keep yourself accountable by maintaining a streak
The widget can be configured via Garmin Connect Mobile or Garmin Express
No account or registration required. All data comes from either your user settings (birthday, body fat percentage) or your user profile (weight, height) and is only used during runtime for the calorie calculations

Installation

You can get the widget from the ConnectIQ store

Supported devices

Due to the differences in display, memory and button configurations only the following devices are supported at the moment:

Captain Marvel
D2™ Charlie
D2™ Delta
D2™ Delta PX
D2™ Delta S
Darth Vader™
Descent™ Mk1
fēnix® 5 / quatix® 5
fēnix® 5 Plus
fēnix® 5S
fēnix® 5S Plus
fēnix® 5X / tactix® Charlie
fēnix® 5X Plus
fēnix® 6
fēnix® 6 Pro
fēnix® 6S
fēnix® 6S Pro
fēnix® 6X Pro
fēnix® Chronos
First Avenger
Forerunner® 245
Forerunner® 245 Music
Forerunner® 645
Forerunner® 645 Music
Forerunner® 935
Forerunner® 945
MARQ™ Adventurer
MARQ™ Athlete
MARQ™ Aviator
MARQ™ Captain
MARQ™ Commander
MARQ™ Driver
MARQ™ Expedition
Rey™
Venu
vívoactive® 3
vívoactive® 3 Mercedes-Benz® Collection
vívoactive® 3 Music
vívoactive® 3 Music LTE
vívoactive® 4
vívoactive® 4S

Supported Languages:

I try to support as many languages as possible, but require the help of volunteers to provide translations. For now the widget is available in the following languages:

Croatian (notefolio)
English (pyrob2142)
German (pyrob2142)

If you want to provide a translation for the widget please feel free to edit the respective column in the translation sheet.

Settings

Long press threshold (ms): Set how long you have to hold the start button to open up the menus (Default: 2000 ms)
Show seconds: If you disable this seconds will not be displayed and the update rate will switch to once per minute. May save power (Default: true)
Show time since last fast: Show time elapsed since the last fast has ended, replaces the "fasts"-string in streak view due to space constraints (Default: true)
Initial page (with goal): Set the startup page for when your fast has a goal (Default: Show time remaining)
Initial page (without goal): Set the startup page for when your fast has no goal (Default: Show time elapsed)
Default goal: Avoid having to scroll through the options by setting your default fast duration (Default: 16 hours)
Custom goals 1-3: Set up to 3 custom goal times by entering the amount of hours. Set to 0 to clear.
Streak goal: Set a streak goal. Set to 0 to disable (Default: 0)
Activity level: Set your activity level to increase the accuracy of your calorie estimate (Default: Moderate)
Date of birth: Set your date of birth to further increase the accuracy of your calorie estimate (Default: 30)
BMR calculation based on: Select from a variety of formulas (details below) for estimating your real-time calorie burn.
Custom BMR (kcal): If you know your BMR (e.g. if you had it professionally measured) you can enter the value here. If set to 0 the widget will estimate your BMR by using the chosen formula (Default: 0)
Body fat (%): Required by the Katch-McArdle formula (Default: 23%)
Reset streak below (% of completion): Count your fast as failed and reset your streak, if your fast does not reach a certain threshold of completion (Default: 50%)
Increase streak above(% of completion): Count your fast as successful and increase your streak, if you reached at least this threshold of completion (Default: 75%)
Single-color progress indicator: Switch between stacking colors or a single color for the progress indicator (Default: false)
Overwrite Streak: Allows you to overwrite the streak in case the settings get reset. Don't cheat!
Overwrite date format: While we provide a default format for your language, you are always free to customize it. Simply enter your desired format as a string: e.g. dd.mm.yy, mm/dd/yy, yy|mm|dd, ...
Time format: Choose if you want the labels for elapsed and remaining time shown with time units or in regular clock style
Switch to days after (hours): Select after how many hours you want the elasped and remaining time converted into days. E.g. 48H 00MIN 00S -> 02D 00H 00MIN / 02:00:00:00

Real-time Calories Estimation

The widget uses a combination of your BMR (basal metabolic rate) and activity level to estimate your daily calorie burn, which is then divided by 86400 (seconds in a day) to get your calories per second. Multiplying with the amount of seconds elapsed since you started your fast, results in an estimate of how many calories you should have burned at this point in your fast. Do note that while these equations are backed by statistics their accuracy is limited. For more information please see: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3572798/

The formulas available for BMR calculation are:

Mifflin-St Jeor Equation:

Men: BMR = 10 * W + 6.25 * H - 5 * A + 5

Women: BMR = 10 * W + 6.25 * H - 5 * A - 161
Revised Harris-Benedict Equation:

Men: BMR = 13.397 * W + 4.799 * H - 5.677 * A + 88.362

Women: BMR = 9.247 * W + 3.098 * H - 4.330 * A + 447.593
Katch-McArdle Formula:

BMR = 370 * 21.6 * (1 - F) * W

Where:

BMR Basal Metabilic Rate

W Weight in kilograms (kg)

H Height in centimenters (cm)

A Age in years

F Body fat in percent (%)

Your activity level is determined as follows:

Sedentary (little to no exercise): 1.2
Lightly Active (light exercise 1-3 days per week): 1.375
Moderately Active (moderate exercise 3-5 days per week): 1.55
Very Active (hard exercise 6-7 days per week): 1.725
Extra Active (very hard exercise/training or a physical job): 1.9

Credits

fire.png made by Freepik from www.flaticon.com.

Oleksiy Mishchenko (axl13) for his amazing contributions to the glance view and stacking progress indicators. You're awesome!

Translators are credited next to their respective languages.

License

This project is licensed under the terms of the GNU General Public License v3.0 license.

pyrob2142 / FastingWidget