30 days of free beta on every app · one-time code · no subscription
DIALFORGE

Running and cycling data fields

HR Zones Big

See your heart rate before you feel it, not after.

Coming to Connect IQ Unlock €3.99

HR Zones Big icon

Beta: free for 30 days

The app works fully and for free for the first 30 days after you first open it. After that you can buy a one-time unlock code below. No subscription.

HR Zones Big shows your current heart rate huge and readable mid-run, your zone 1-5, a colour zone bar with a live marker, and how long you have been in this zone. Zones come straight from your Garmin heart rate zone settings for the current sport, so they match what you already trust, not a hidden formula.

  • Huge number, readable mid-stride on AMOLED and MIP screens ("--" until a heart rate reading arrives)
  • Zone 1-5 with a colour band and marker on the zone bar
  • Time spent in the current zone
  • Show bpm, percent of max HR, or percent of heart rate reserve
  • Adapts to full, half, third or quarter field size

How to use it

Add HR Zones Big as a data field in an activity, then set it up in its settings.

Add HR Zones Big as a data field on any screen and pick the display mode in the data field settings.

Manual

HR Zones Big: user manual

What it does

HR Zones Big is a data field that shows your heart rate as one huge number. Next to it you get the zone 1 to 5, a coloured zone bar with a marker, and the time you have spent in the current zone. Zones come from your Garmin profile.

Requirements and supported watches

Needs Connect IQ 3.3.0+ and the Connect IQ or Garmin Connect phone app. Supported watches:

  • Round AMOLED: epix 2 and epix Pro 2, fēnix 8, E, Forerunner 165, 265, 570, 965, 970, Instinct 3 AMOLED, Crossover AMOLED, Venu 2, 3, 4, vivoactive 5, 6.
  • Round MIP: enduro 3, fēnix 7 series, 8 Solar, Forerunner 245 (245 Music), 255.
  • Square and rectangular AMOLED: Venu Sq 2, Venu X1.

Installation

In the Connect IQ app on your phone (or Garmin Connect, then the Connect IQ Store) find "HR Zones Big" by Dialforge, tap Install and sync the watch. Add it in an activity's settings: Data Screens, a field, Connect IQ, HR Zones Big.

First launch

Add it to a data screen and start the activity. With no reading you see "--". Once the heart rate arrives, the number, the zone badge and the marker on the bar appear. How much shows depends on the field size. The 30-day free beta starts the first time you open it.

Controls

Watches with buttons (START, UP, DOWN, BACK)

  • A data field has no buttons of its own. The watch's buttons work as they do on any activity screen.

Touch watches (tap, hold, swipe)

  • No touch actions, the field only displays data.

Settings

Phone: Connect IQ app, HR Zones Big, Settings (the unlock code fields are there too).

  • Display: Heart rate (bpm), Percent of max HR, Percent of heart rate reserve. Default: Heart rate (bpm).

License

  • Free beta: 30 days from the first launch, everything works.
  • Price: 3.99 EUR once at dialforge.dev, no subscription. The 8-character code is tied to your watch's UID.
  • Where to enter it: phone, Connect IQ app, HR Zones Big, Settings. Read the UID in "Watch UID (needed to buy a code)", buy the code, then type it into "Unlock code from dialforge.dev".
  • After the beta without a code: the field shows only the small text dialforge.dev instead of the numbers. It has no end-of-beta screen, the UID is in the phone settings. Zone time keeps counting in the background, and after you enter the code the field returns within about half a minute.

Privacy and permissions

Permissions:

  • User profile: heart rate zones for the current sport, resting heart rate and birth year as a fallback.

No internet use. Data stays on the watch.

Troubleshooting

The code does not work. Check that the UID you bought for matches "Watch UID (needed to buy a code)" and type all 8 characters (case is ignored, no 0, O, 1 or I). A code for another app does not fit. Sync, then reopen.

What shows at each field size? Full screen: number, zone badge, bar, time in zone and unit. Half: number, badge and bar. Third: number and badge. Quarter: only the number, tinted with the zone colour.

What do the display options do? Display, set on the phone: heart rate (bpm), percent of max HR, or percent of heart rate reserve. Max is the top of zone 5, resting comes from your profile (30 to 120, else 60).

Where do the zones come from? From the heart rate zones in your Garmin profile for the current sport. If they are missing or make no sense, the field uses 50, 60, 70, 80 and 90% of max heart rate, with 185 as the last resort.

Why is the marker not proportional to bpm? The bar has five equal segments, one per zone, and the marker moves within the current one. Below zone 1 the badge shows 0.

Contact

kontakt@dialforge.dev or dialforge.dev. Please write before leaving a low rating.

Permissions and privacy

This product asks the watch for the permissions below. Connect IQ shows them when you install it.

  • Your profile: Reads your Garmin profile on the watch (for example age, weight, heart rate zones) to calculate values for you.

This product does not use the internet and sends no data to our servers.

Compatible watches

51mm, D2 Air X15, D2 Mach 1 Pro, Enduro 2, Enduro 3, epix (Gen 2), epix Pro (Gen 2) 42mm, epix Pro (Gen 2) 47mm, epix Pro (Gen 2) 51mm, Forerunner 165, Forerunner 165 Music, Forerunner 245 Music, Forerunner 255, Forerunner 255 Music, Forerunner 255s, Forerunner 255s Music, Forerunner 265, Forerunner 265s, Forerunner 570 42mm, Forerunner 570 47mm, Forerunner 965, Forerunner 970, fēnix 7, fēnix 7 Pro, fēnix 7 Pro - Solar Edition (no Wi-Fi), fēnix 7S, fēnix 7S Pro, fēnix 7X, fēnix 7X Pro, fēnix 7X Pro - Solar Edition (no Wi-Fi), fēnix 8 43mm, fēnix 8 47mm, fēnix 8 Pro 47mm, fēnix 8 Solar 47mm, fēnix 8 Solar 51mm, fēnix E, Instinct 3 AMOLED 45mm, Instinct 3 AMOLED 50mm, Instinct Crossover AMOLED, MicroLED, quatix 7, quatix 7 Pro, quatix 7 Sapphire, quatix 7X Solar, quatix 8 47mm, quatix 8 Pro 47mm, tactix 7, tactix 7 – AMOLED Edition, tactix 8 47mm, tactix 8 Solar 51mm, Venu 2, Venu 2 Plus, Venu 2S, Venu 3, Venu 3S, Venu 4 41mm, Venu 4 45mm, Venu Sq 2, Venu Sq 2 Music, Venu X1, vívoactive 5, vívoactive 6

Screenshots

FAQ

What happens after the 30-day beta?

The app shows a screen asking for a one-time unlock code from dialforge.dev instead of opening normally. Buy the code once below, no subscription.

Does the app send my data to Dialforge?

No. The app works fully offline, and the unlock code is checked on the watch itself, without contacting any server.

The app does not work as described on my watch. Can I get a refund?

Yes. Write through the feedback form below, or to the e-mail in the footer. If we cannot fix it, we refund you, as described in the terms.

Changing your watch?

Write to me and I will move your code for free.

Changelog

Unlock

€3.99

One-time payment. No subscription. The code works on the watch whose UID you enter.

  1. Install the app from the Connect IQ store. It works fully and for free for the first 30 days.
  2. Find your 10-digit UID: Connect IQ app on the phone > My Device > Apps or Data Fields > this app > Settings > Watch UID.
  3. Enter UID and e-mail, pay with PayPal (cards work without a PayPal account). The code appears here at once.
  4. Type the code into the same settings page, field "Unlock code". The watch checks it offline.

Tell us how to make it better

Missing a data field, a colour, a layout? Found a bug on your watch model? Write it here. We read every message and ship improvements in updates.