Cairn Cycle | A Garmin Data Field Built for Speed and Power

Cairn Cycle is a full-screen cycling data field, built as the cycling edition of the hiking-focused data field Cairn. The free edition shows six metrics; the paid Cairn Cycle Pro expands to twelve, all on one screen.

Short version: the free edition alone gives you six ride-focused metrics — speed, distance, heart rate, power, cadence — and Cairn Cycle Pro adds climb data when you want it.

Cairn Cycle icon

Cairn Cycle / Cairn Cycle Pro

One screen, only the numbers that matter on a ride — nothing to scroll for. Every cell drawn the same way — small label, big value — so you read it at a glance.

⌚ See Cairn Cycle (free) on the store ⌚ See Cairn Cycle Pro on the store

Who is this for?

  • Road, gravel, mountain and indoor riders who want speed and power at a glance
  • Anyone who wants one screen instead of scrolling through activity fields
  • Anyone who rides hilly routes and wants elevation and grade alongside the basics
  • Anyone who'd rather try free first and upgrade only if they need to

Free Cairn Cycle vs. Cairn Cycle Pro

Cairn Cycle (free)Cairn Cycle Pro
Metrics612
FieldsSPEED, DIST, TIME, HR, POWER, CADENCEAbove 6, plus AVG SPD, AVG PWR, ELEV, GRADE, TEMP, BATTERY
Live + averageLive onlySpeed and power show live and ride-average together
Climb dataNot includedELEV and GRADE included
Narrow screens—Auto-drops to a 6-cell "Focus" layout
PriceFree forever5-activity free trial, then one-time US$2.49
NetworkNone, no permissionsKiezelPay server only (unlock check)
Cairn Cycle six-metric screenshot on Venu 3 Cairn Cycle Pro twelve-metric screenshot on Venu 3 Cairn Cycle Pro Focus layout screenshot on fenix 7

Compatible watches

69 Garmin watches: Forerunner 70 / 165 / 165 Music / 170 / 170 Music / 255 / 255 Music / 265 / 265S / 570 (42 / 47 mm) / 955 / 965 / 970, Venu 2 / 2 Plus / 2S / 3 / 3S / 4 (41 / 45 mm), vívoactive 5 / 6, fēnix 6 / 6S / 6 Pro / 6S Pro / 6X Pro, fēnix 7 / 7S / 7X / 7 Pro / 7S Pro / 7X Pro (including the no-Wi-Fi models), fēnix 8 AMOLED (43 / 47 mm) / fēnix 8 Solar (47 / 51 mm) / fēnix 8 Pro (47 / 51 mm) / fēnix E / fēnix 9 (43 / 47 mm) / fēnix 9 Pro (43 / 47 / 51 mm) / fēnix 9 Pro Solar (47 / 51 mm), epix (Gen 2) / epix Pro (Gen 2) (42 / 47 / 51 mm), enduro / enduro 3, Instinct 3 AMOLED (45 / 50 mm), MARQ (Gen 2), Approach S50 / S70 (42 / 47 mm), Descent G2 / Mk3 (43 / 51 mm), D2 Air X10 / Mach 1 / Mach 2 / Mach 2 Pro (including tactix, quatix and other models on the same platforms)

* Cairn Cycle Pro supports 63 of these watches: fēnix 6 / 6S / 6 Pro / 6S Pro / 6X Pro and enduro are not supported, because they can't connect to the payment service from a data field. Please use the free Cairn Cycle on those watches.

Price and how to buy

The free Cairn Cycle needs nothing beyond installing it — all six metrics are free forever, with no network access and no permissions requested.

Cairn Cycle Pro is listed free but is the paid edition. The first 5 activities you use it in are a free trial with every feature working. After that the field shows a 6-digit code and the URL www.kzl.io/code until you unlock it. A one-time payment of US$2.49 (no subscription) unlocks all twelve metrics for good. Open www.kzl.io/code on your phone, enter the code and pay, and it unlocks within a few minutes. Payment is processed by KiezelPay (card or PayPal), not Garmin. Other watches on the same Garmin account don't need a second purchase.

The free Cairn Cycle never connects to anything and requests no permissions. Cairn Cycle Pro only talks to the KiezelPay server to check unlock status, and never sends speed, power, location or any other data anywhere.

FAQ

Q. Is Cairn Cycle free to use?

A. Yes. The free Cairn Cycle is a six-metric cycling data field and is completely free, with no network access and no permissions requested.

Q. What does Cairn Cycle Pro add?

A. Cairn Cycle Pro expands to twelve metrics, adding average speed, average power, elevation, grade, temperature and watch battery. The first 5 activities are a free trial; after that a one-time US$2.49 payment unlocks it for good.

Q. Where does Cairn Cycle Pro's payment go?

A. Payment is processed by the third-party service KiezelPay, not Garmin directly. Once the trial runs out, the field shows a 6-digit code and a URL — open it on your phone, enter the code and pay (credit card or PayPal).

Q. Can I use it without a power meter?

A. Yes. The POWER and CADENCE cells show "--" without a power meter or cadence sensor, but every other cell (speed, distance, time, heart rate, etc.) works normally.

Q. How is this different from the hiking Cairn?

A. Cairn Cycle uses a metric set tuned for cycling (speed, power, cadence, etc.) and is listed separately on the Garmin store from the hiking-focused Cairn. The underlying engine is shared, but the supported activity type and displayed metrics differ.

Your ride data, on one screen

Install the free Cairn Cycle now — it stays free forever. Want more? Try Cairn Cycle Pro free for 5 activities.

⌚ See Cairn Cycle (free) on the store ⌚ See Cairn Cycle Pro on the store
Author: Yuichi Sato (entrepreneur, app developer). Full profile here.